Data on age: By country
Country data as of April 2026
| Country | Chamber | Structure of parliament | Chamber type | Last election | First session | Average age | % 30 or under | % 40 or under | % 45 or under |
|---|---|---|---|---|---|---|---|---|---|
| Albania | Parliament | Unicameral | 11 May 2025 | 12 Sep 2025 | 47.4 | 3.57 | 29.29 | 44.29 | |
| Algeria | National People's Assembly | Bicameral | Lower chamber | 12 Jun 2021 | 08 Jul 2021 | 46.7 | 3.69 | 30.71 | 46.44 |
| Algeria | Council of the Nation | Bicameral | Upper chamber | 09 Mar 2025 | 19 May 2025 | - | 0.00 | 4.88 | 28.05 |
| Andorra | General Council | Unicameral | 02 Apr 2023 | 26 Apr 2023 | 45.25 | 3.57 | 35.71 | 46.43 | |
| Angola | National Assembly | Unicameral | 24 Aug 2022 | 16 Sep 2022 | - | 0.91 | 13.18 | 27.27 | |
| Antigua and Barbuda | House of Representatives | Bicameral | Lower chamber | 18 Jan 2023 | 17 Feb 2023 | - | 0.00 | 11.11 | 22.22 |
| Antigua and Barbuda | Senate | Bicameral | Upper chamber | 17 Feb 2023 | 17 Feb 2023 | 54 | 5.88 | 29.41 | 35.29 |
| Argentina | Chamber of Deputies | Bicameral | Lower chamber | 26 Oct 2025 | 10 Dec 2025 | 51.5 | 1.56 | 18.36 | 31.64 |
| Argentina | Senate | Bicameral | Upper chamber | 26 Oct 2025 | 10 Dec 2025 | 54.5 | 1.39 | 12.50 | 26.39 |
| Armenia | National Assembly | Unicameral | 20 Jun 2021 | 02 Aug 2021 | 41.7 | 16.82 | 56.07 | 71.03 | |
| Australia | House of Representatives | Bicameral | Lower chamber | 03 May 2025 | 22 Jul 2025 | 52 | 1.45 | 13.04 | 26.09 |
| Australia | Senate | Bicameral | Upper chamber | 03 May 2025 | 22 Jul 2025 | 51.8 | 4.41 | 14.71 | 29.41 |
| Austria | National Council | Bicameral | Lower chamber | 29 Sep 2024 | 24 Oct 2024 | 48.1 | 3.28 | 23.50 | 37.16 |
| Austria | Federal Council | Bicameral | Upper chamber | - | - | 52.8 | 1.61 | 11.29 | 17.74 |
| Azerbaijan | National Assembly | Unicameral | 01 Sep 2024 | 23 Sep 2024 | 56 | 0.80 | 6.40 | 15.20 | |
| Bahamas | House of Assembly | Bicameral | Lower chamber | 16 Sep 2021 | 06 Oct 2021 | 50.1 | 0.00 | 17.95 | 38.46 |
| Bahamas | Senate | Bicameral | Upper chamber | 06 Oct 2021 | 06 Oct 2021 | 47.5 | 0.00 | 31.25 | 43.75 |
| Bahrain | Council of Representatives | Bicameral | Lower chamber | 12 Nov 2022 - 19 Nov 2022 | 12 Dec 2022 | 49.7 | 0.00 | 27.50 | 42.50 |
| Bahrain | Shura Council | Bicameral | Upper chamber | 27 Nov 2022 | 27 Nov 2022 | 62.2 | 0.00 | 0.00 | 7.50 |
| Bangladesh | Parliament | Unicameral | 12 Feb 2026 | 12 Mar 2026 | - | - | - | - | |
| Barbados | House of Assembly | Bicameral | Lower chamber | 11 Feb 2026 | 20 Feb 2026 | - | 0.00 | 9.68 | 12.90 |
| Barbados | Senate | Bicameral | Upper chamber | 20 Feb 2026 | 20 Feb 2026 | 49.4 | 9.52 | 33.33 | 38.10 |
| Belarus | House of Representatives | Bicameral | Lower chamber | 25 Feb 2024 | 22 Mar 2024 | - | - | - | - |
| Belarus | Council of the Republic | Bicameral | Upper chamber | 04 Apr 2024 | 12 Apr 2024 | 52.8 | 0.00 | 6.78 | 16.95 |
| Belgium | House of Representatives | Bicameral | Lower chamber | 09 Jun 2024 | 04 Jul 2024 | 47.4 | 6.00 | 22.67 | 39.33 |
| Belgium | Senate | Bicameral | Upper chamber | 18 Jul 2024 | 08 Oct 2024 | - | 0.00 | 18.64 | 44.07 |
| Belize | House of Representatives | Bicameral | Lower chamber | 12 Mar 2025 | 09 May 2025 | - | 0.00 | 6.25 | 12.50 |
| Belize | Senate | Bicameral | Upper chamber | 09 May 2025 | 09 May 2025 | - | 14.29 | 21.43 | 35.71 |
| Benin | National Assembly | Unicameral | 11 Jan 2026 | 08 Feb 2026 | - | - | - | - | |
| Bhutan | National Assembly | Bicameral | Lower chamber | 09 Jan 2024 | 25 Jan 2024 | 48 | 0.00 | 25.53 | 38.30 |
| Bhutan | National Council | Bicameral | Upper chamber | 20 Apr 2023 | 10 May 2023 | 43.74 | 0.00 | 24.00 | 68.00 |
| Bolivia (Plurinational State of) | Chamber of Deputies | Bicameral | Lower chamber | 17 Aug 2025 | 08 Nov 2025 | 44.6 | 9.23 | 42.31 | 62.31 |
| Bolivia (Plurinational State of) | Chamber of Senators | Bicameral | Upper chamber | 17 Aug 2025 | 08 Nov 2025 | 51.4 | 0.00 | 16.67 | 30.56 |
| Bosnia and Herzegovina | House of Representatives | Bicameral | Lower chamber | 02 Oct 2022 | 01 Dec 2022 | 52.7 | 0.00 | 17.07 | 24.39 |
| Bosnia and Herzegovina | House of Peoples | Bicameral | Upper chamber | 16 Feb 2023 | 16 Feb 2023 | 56.5 | 0.00 | 14.29 | 14.29 |
| Botswana | National Assembly | Unicameral | 30 Oct 2024 | 07 Nov 2024 | - | 1.49 | 11.94 | 35.82 | |
| Brazil | Chamber of Deputies | Bicameral | Lower chamber | 02 Oct 2022 | 01 Feb 2023 | 51.4 | 3.90 | 22.81 | 36.84 |
| Brazil | Federal Senate | Bicameral | Upper chamber | 02 Oct 2022 | 01 Feb 2023 | 58.71 | 0.00 | 2.47 | 14.81 |
| Brunei Darussalam | Legislative Council | Unicameral | 20 Jan 2023 | 20 Jan 2023 | 59.17 | 0.00 | 5.88 | 11.76 | |
| Bulgaria | National Assembly | Unicameral | 27 Oct 2024 | 11 Nov 2024 | 47.3 | 3.75 | 27.92 | 44.58 | |
| Burkina Faso | Transitional Legislative Assembly | Unicameral | 11 Nov 2022 | 11 Nov 2022 | 46.04 | 5.63 | 36.62 | 46.48 | |
| Burundi | National Assembly | Bicameral | Lower chamber | 05 Jun 2025 | 28 Jul 2025 | 47.3 | 0.00 | 19.82 | 46.85 |
| Burundi | Senate | Bicameral | Upper chamber | 23 Jul 2025 | 04 Aug 2025 | 50.8 | 0.00 | 23.08 | 30.77 |
| Cabo Verde | National Assembly | Unicameral | 18 Apr 2021 | 13 May 2021 | 47.9 | 0.00 | 16.67 | 41.67 | |
| Cambodia | National Assembly | Bicameral | Lower chamber | 23 Jul 2023 | 21 Aug 2023 | 66.5 | 0.00 | 2.40 | 8.00 |
| Cambodia | Senate | Bicameral | Upper chamber | 25 Feb 2024 | 03 Apr 2024 | 66.4 | 0.00 | 0.00 | 5.17 |
| Cameroon | National Assembly | Bicameral | Lower chamber | 09 Feb 2020 - 22 Mar 2020 | 10 Mar 2020 | - | - | - | - |
| Cameroon | Senate | Bicameral | Upper chamber | 12 Mar 2023 | 19 Apr 2023 | 65.5 | 0.00 | 0.00 | 3.12 |
| Canada | House of Commons | Bicameral | Lower chamber | 28 Apr 2025 | 26 May 2025 | 52.3 | 3.14 | 17.07 | 30.31 |
| Canada | Senate | Bicameral | Upper chamber | - | - | 65.5 | 0.00 | 0.00 | 0.97 |
| Central African Republic | National Assembly | Unicameral | 28 Dec 2025 - 26 Apr 2026 | - | - | - | - | - | |
| Chad | National Assembly | Bicameral | Lower chamber | 29 Dec 2024 | 04 Feb 2025 | - | 2.66 | 25.53 | 40.43 |
| Chad | Senate | Bicameral | Upper chamber | 25 Feb 2025 | 07 Mar 2025 | 64 | 0.00 | 4.17 | 8.33 |
| Chile | Chamber of Deputies | Bicameral | Lower chamber | 16 Nov 2025 | 11 Mar 2026 | - | - | - | - |
| Chile | Senate | Bicameral | Upper chamber | 16 Nov 2025 | 11 Mar 2026 | - | - | - | - |
| China | National People's Congress | Unicameral | 05 Mar 2023 | 05 Mar 2023 | - | - | - | - | |
| Colombia | House of Representatives | Bicameral | Lower chamber | 08 Mar 2026 | 20 Jul 2026 | 44.3 | 6.74 | 41.57 | 63.48 |
| Colombia | Senate | Bicameral | Upper chamber | 08 Mar 2026 | 20 Jul 2026 | 48.7 | 1.00 | 27.00 | 44.00 |
| Comoros | Assembly of the Union | Unicameral | 12 Jan 2025 - 16 Feb 2025 | 04 Apr 2025 | - | - | - | - | |
| Congo | National Assembly | Bicameral | Lower chamber | 10 Jul 2022 - 31 Jul 2022 | 16 Aug 2022 | - | - | - | - |
| Congo | Senate | Bicameral | Upper chamber | 20 Aug 2023 | 13 Sep 2023 | - | - | - | - |
| Costa Rica | Legislative Assembly | Unicameral | 01 Feb 2026 | 01 May 2026 | 48.43 | 7.02 | 28.07 | 43.86 | |
| Côte d'Ivoire | National Assembly | Bicameral | Lower chamber | 27 Dec 2025 | 19 Jan 2026 | - | - | - | - |
| Côte d'Ivoire | Senate | Bicameral | Upper chamber | 16 Sep 2023 | 12 Oct 2023 | - | - | - | - |
| Croatia | Croatian Parliament | Unicameral | 17 Apr 2024 | 16 May 2024 | - | 1.99 | 19.21 | 37.09 | |
| Cuba | National Assembly of the People's Power | Unicameral | 26 Mar 2023 | 16 May 2023 | 46.2 | 7.87 | 35.53 | 49.57 | |
| Cyprus | House of Representatives | Unicameral | 30 May 2021 | 10 Jun 2021 | 49.41 | 1.79 | 23.21 | 33.93 | |
| Czechia | Chamber of Deputies | Bicameral | Lower chamber | 03 Oct 2025 - 04 Oct 2025 | 03 Nov 2025 | 49.1 | 7.50 | 23.50 | 38.00 |
| Czechia | Senate | Bicameral | Upper chamber | 20 Sep 2024 - 28 Sep 2024 | 30 Oct 2024 | 58.2 | 0.00 | 3.75 | 10.00 |
| Democratic People's Republic of Korea | Supreme People's Assembly | Unicameral | 15 Mar 2026 | 22 Mar 2026 | - | - | - | - | |
| Democratic Republic of the Congo | National Assembly | Bicameral | Lower chamber | 20 Dec 2023 | 29 Jan 2024 | 50.5 | 2.61 | 21.04 | 36.27 |
| Democratic Republic of the Congo | Senate | Bicameral | Upper chamber | 29 Apr 2024 - 26 May 2024 | 14 May 2024 | 54.5 | 1.98 | 14.85 | 20.79 |
| Denmark | The Danish Parliament | Unicameral | 24 Mar 2026 | - | - | - | - | - | |
| Djibouti | National Assembly | Unicameral | 24 Feb 2023 | 05 Mar 2023 | 51 | 0.00 | 24.62 | 40.00 | |
| Dominica | House of Assembly | Unicameral | 06 Dec 2022 | 06 Feb 2023 | - | - | - | - | |
| Dominican Republic | Chamber of Deputies | Bicameral | Lower chamber | 19 May 2024 | 16 Aug 2024 | 51 | 1.05 | 21.05 | 35.79 |
| Dominican Republic | Senate | Bicameral | Upper chamber | 19 May 2024 | 16 Aug 2024 | 57.8 | 0.00 | 6.45 | 9.68 |
| Ecuador | National Assembly | Unicameral | 09 Feb 2025 | 14 May 2025 | 43.1 | 13.91 | 47.68 | 62.91 | |
| Egypt | House of Representatives | Bicameral | Lower chamber | 10 Nov 2025 - 18 Dec 2025 | 12 Jan 2026 | - | 2.52 | 17.45 | 33.39 |
| Egypt | Senate | Bicameral | Upper chamber | 04 Aug 2025 - 28 Aug 2025 | 18 Oct 2025 | - | - | - | - |
| El Salvador | Legislative Assembly | Unicameral | 04 Feb 2024 | 01 May 2024 | - | - | - | - | |
| Equatorial Guinea | Chamber of Deputies | Bicameral | Lower chamber | 20 Nov 2022 | 19 Jan 2023 | - | - | - | - |
| Equatorial Guinea | Senate | Bicameral | Upper chamber | 20 Nov 2022 | 19 Jan 2023 | - | - | - | - |
| Eritrea | National Assembly | Unicameral | 01 Feb 1994 | 01 Feb 1994 | - | - | - | - | |
| Estonia | The Estonian Parliament | Unicameral | 05 Mar 2023 | 10 Apr 2023 | 50.5 | 3.96 | 17.82 | 37.62 | |
| Eswatini | House of Assembly | Bicameral | Lower chamber | 29 Sep 2023 | 06 Oct 2023 | - | 2.74 | 19.18 | 36.99 |
| Eswatini | Senate | Bicameral | Upper chamber | 06 Nov 2023 | 06 Nov 2023 | - | 0.00 | 13.33 | 20.00 |
| Ethiopia | House of Peoples' Representatives | Bicameral | Lower chamber | 21 Jun 2021 - 30 Sep 2021 | 04 Oct 2021 | 40.46 | 3.82 | 51.17 | 71.13 |
| Ethiopia | House of the Federation | Bicameral | Upper chamber | 04 Oct 2021 | 04 Oct 2021 | - | - | - | - |
| Fiji | Parliament | Unicameral | 14 Dec 2022 | 24 Dec 2022 | 54.34 | 1.82 | 12.73 | 20.00 | |
| Finland | Parliament | Unicameral | 02 Apr 2023 | 13 Apr 2023 | 47 | 3.50 | 29.50 | 44.50 | |
| France | National Assembly | Bicameral | Lower chamber | 30 Jun 2024 - 07 Jul 2024 | 18 Jul 2024 | 49.3 | 5.37 | 27.90 | 38.99 |
| France | Senate | Bicameral | Upper chamber | 24 Sep 2023 | 02 Oct 2023 | 59.92 | 0.57 | 4.60 | 9.48 |
| Gabon | National Assembly | Bicameral | Lower chamber | 27 Sep 2025 - 11 Oct 2025 | 04 Nov 2025 | - | - | - | - |
| Gabon | Senate | Bicameral | Upper chamber | 08 Nov 2025 - 25 Nov 2025 | 17 Dec 2025 | - | - | - | - |
| Gambia (The) | National Assembly | Unicameral | 09 Apr 2022 | 14 Apr 2022 | 43.05 | 5.17 | 41.38 | 60.34 | |
| Georgia | Parliament | Unicameral | 26 Oct 2024 | 25 Nov 2024 | 47.9 | 3.96 | 29.70 | 39.60 | |
| Germany | German Bundestag | Bicameral | Lower chamber | 23 Feb 2025 | 25 Mar 2025 | 45.4 | 6.83 | 30.79 | 43.33 |
| Germany | Federal Council | Bicameral | Upper chamber | - | - | 54.8 | 0.00 | 5.80 | 14.49 |
| Ghana | Parliament | Unicameral | 07 Dec 2024 | 07 Jan 2025 | 49.4 | 0.00 | 17.10 | 37.55 | |
| Greece | Hellenic Parliament | Unicameral | 25 Jun 2023 | 03 Jul 2023 | 53.9 | 0.34 | 11.45 | 21.21 | |
| Grenada | House of Representatives | Bicameral | Lower chamber | 23 Jun 2022 | 31 Aug 2022 | - | - | - | - |
| Grenada | Senate | Bicameral | Upper chamber | 31 Aug 2022 | 31 Aug 2022 | - | - | - | - |
| Guatemala | Congress of the Republic | Unicameral | 25 Jun 2023 | 14 Jan 2024 | 44.9 | 6.25 | 43.75 | 57.50 | |
| Guinea | Transitional National Council | Unicameral | 22 Jan 2022 | 05 Feb 2022 | 44.9 | 6.35 | 34.92 | 46.03 | |
| Guinea-Bissau | Transitional National Council | Unicameral | 12 Dec 2025 | 12 Dec 2025 | - | - | - | - | |
| Guyana | National Assembly | Unicameral | 01 Sep 2025 | 03 Nov 2025 | 48.9 | 2.78 | 27.78 | 44.44 | |
| Haiti | Chamber of Deputies | Bicameral | Lower chamber | 09 Aug 2015 - 25 Oct 2015 | 11 Jan 2016 | - | - | - | - |
| Haiti | Senate | Bicameral | Upper chamber | 20 Nov 2016 - 29 Jan 2017 | 10 Jan 2017 | - | - | - | - |
| Honduras | National Congress | Unicameral | 30 Nov 2025 | 23 Jan 2026 | - | - | - | - | |
| Hungary | National Assembly | Unicameral | 03 Apr 2022 | 02 May 2022 | 53.47 | 3.02 | 18.59 | 30.15 | |
| Iceland | Parliament | Unicameral | 30 Nov 2024 | 04 Feb 2025 | 51.9 | 3.17 | 19.05 | 25.40 | |
| India | House of the People | Bicameral | Lower chamber | 19 Apr 2024 - 01 Jun 2024 | 24 Jun 2024 | - | 1.29 | 9.59 | 18.08 |
| India | Council of States | Bicameral | Upper chamber | 16 Mar 2026 | - | - | - | - | - |
| Indonesia | House of Representatives | Unicameral | 14 Feb 2024 | 01 Oct 2024 | - | 4.49 | 15.89 | 29.19 | |
| Iran (Islamic Republic of) | Islamic Parliament of Iran | Unicameral | 01 Mar 2024 - 10 May 2024 | 28 May 2024 | 53.5 | 0.00 | 4.90 | 21.68 | |
| Iraq | Council of Representatives of Iraq | Unicameral | 11 Nov 2025 | 29 Dec 2025 | - | - | - | - | |
| Ireland | House of Representatives | Bicameral | Lower chamber | 29 Nov 2024 | 18 Dec 2024 | 50.5 | 3.59 | 15.57 | 29.94 |
| Ireland | Senate | Bicameral | Upper chamber | 29 Jan 2025 - 30 Jan 2025 | 12 Feb 2025 | 51.7 | 0.00 | 19.23 | 25.00 |
| Israel | Parliament | Unicameral | 01 Nov 2022 | 15 Nov 2022 | 52.28 | 0.83 | 11.67 | 29.17 | |
| Italy | Chamber of Deputies | Bicameral | Lower chamber | 25 Sep 2022 | 13 Oct 2022 | 49.92 | 1.25 | 16.25 | 35.00 |
| Italy | Senate | Bicameral | Upper chamber | 25 Sep 2022 | 13 Oct 2022 | 55.76 | 0.00 | 0.00 | 8.74 |
| Jamaica | House of Representatives | Bicameral | Lower chamber | 03 Sep 2025 | 18 Sep 2025 | - | - | - | - |
| Jamaica | Senate | Bicameral | Upper chamber | 18 Sep 2025 | 18 Sep 2025 | - | - | - | - |
| Japan | House of Representatives | Bicameral | Lower chamber | 08 Feb 2026 | 18 Feb 2026 | 54.7 | 1.72 | 9.68 | 21.72 |
| Japan | House of Councillors | Bicameral | Upper chamber | 20 Jul 2025 | 01 Aug 2025 | 57.5 | 0.00 | 3.63 | 12.10 |
| Jordan | House of Representatives | Bicameral | Lower chamber | 10 Sep 2024 | 18 Nov 2024 | 52.5 | 0.72 | 12.32 | 22.46 |
| Jordan | Senate | Bicameral | Upper chamber | 24 Oct 2024 | 18 Nov 2024 | 66.9 | 0.00 | 0.00 | 0.00 |
| Kazakhstan | House of Representatives | Bicameral | Lower chamber | 19 Mar 2023 | 29 Mar 2023 | 49 | 4.08 | 25.51 | 39.80 |
| Kazakhstan | Senate | Bicameral | Upper chamber | 14 Jan 2023 | 26 Jan 2023 | 55.1 | 0.00 | 6.00 | 10.00 |
| Kenya | National Assembly | Bicameral | Lower chamber | 09 Aug 2022 | 08 Sep 2022 | 49.9 | 2.03 | 19.48 | 35.47 |
| Kenya | Senate | Bicameral | Upper chamber | 09 Aug 2022 | 13 Sep 2022 | - | 0.00 | 18.18 | 30.30 |
| Kiribati | House of Assembly | Unicameral | 14 Aug 2024 - 19 Aug 2024 | 13 Sep 2024 | - | - | - | - | |
| Kyrgyzstan | Supreme Council | Unicameral | 30 Nov 2025 | 17 Dec 2025 | 46.3 | 3.45 | 32.18 | 47.13 | |
| Lao People's Democratic Republic | National Assembly | Unicameral | 22 Feb 2026 | 23 Mar 2026 | - | - | - | - | |
| Latvia | Parliament | Unicameral | 01 Oct 2022 | 01 Nov 2022 | 48.06 | 6.00 | 34.00 | 43.00 | |
| Lebanon | National Assembly | Unicameral | 15 May 2022 | 31 May 2022 | 55.92 | 1.56 | 9.38 | 17.19 | |
| Lesotho | National Assembly | Bicameral | Lower chamber | 07 Oct 2022 | 25 Oct 2022 | 50.1 | 3.41 | 18.18 | 32.95 |
| Lesotho | Senate | Bicameral | Upper chamber | 02 Nov 2022 | 03 Nov 2022 | 51.7 | 3.03 | 9.09 | 24.24 |
| Liberia | House of Representatives | Bicameral | Lower chamber | 10 Oct 2023 | 15 Jan 2024 | 49.4 | 1.39 | 15.28 | 40.28 |
| Liberia | The Liberian Senate | Bicameral | Upper chamber | 10 Oct 2023 | 15 Jan 2024 | 54.5 | 0.00 | 0.00 | 6.67 |
| Libya | House of Representatives | Unicameral | 25 Jun 2014 | 04 Aug 2014 | - | 0.00 | 13.53 | 29.41 | |
| Liechtenstein | Diet | Unicameral | 09 Feb 2025 | 07 May 2025 | 48.3 | 4.00 | 24.00 | 36.00 | |
| Lithuania | Parliament | Unicameral | 13 Oct 2024 - 27 Oct 2024 | 14 Nov 2024 | 50.2 | 1.42 | 21.99 | 39.72 | |
| Luxembourg | Chamber of Deputies | Unicameral | 08 Oct 2023 | 24 Oct 2023 | 50.56 | 3.33 | 25.00 | 36.67 | |
| Madagascar | National Assembly | Bicameral | Lower chamber | 29 May 2024 | 09 Jul 2024 | 50.2 | 0.00 | 15.34 | 34.97 |
| Madagascar | Senate | Bicameral | Upper chamber | 11 Dec 2020 | 19 Jan 2021 | 57.3 | 0.00 | 0.00 | 11.11 |
| Malawi | National Assembly | Unicameral | 16 Sep 2025 | 31 Oct 2025 | 47.3 | 3.14 | 21.08 | 41.70 | |
| Malaysia | House of Representatives | Bicameral | Lower chamber | 19 Nov 2022 | 19 Dec 2022 | - | 0.90 | 12.61 | 26.13 |
| Malaysia | Senate | Bicameral | Upper chamber | - | - | - | 0.00 | 0.00 | 1.96 |
| Maldives | People's Majlis | Unicameral | 21 Apr 2024 | 28 May 2024 | - | 4.30 | 32.26 | 51.61 | |
| Mali | Transitional National Council | Unicameral | 05 Dec 2020 | 05 Dec 2020 | - | 3.31 | 21.49 | 33.06 | |
| Malta | House of Representatives | Unicameral | 26 Mar 2022 | 07 May 2022 | 44.82 | 10.00 | 38.57 | 51.43 | |
| Marshall Islands | Parliament | Unicameral | 20 Nov 2023 | 02 Jan 2024 | - | - | - | - | |
| Mauritania | National Assembly | Unicameral | 13 May 2023 - 27 May 2023 | 19 Jun 2023 | 53.6 | 0.57 | 12.50 | 25.00 | |
| Mauritius | National Assembly | Unicameral | 10 Nov 2024 | 29 Nov 2024 | - | 0.00 | 14.93 | 29.85 | |
| Mexico | Chamber of Deputies | Bicameral | Lower chamber | 02 Jun 2024 | 01 Sep 2024 | 48.8 | 3.40 | 26.20 | 42.80 |
| Mexico | Senate | Bicameral | Upper chamber | 02 Jun 2024 | 01 Sep 2024 | 51.5 | 3.94 | 19.69 | 33.07 |
| Micronesia (Federated States of) | Congress | Unicameral | 04 Mar 2025 | 11 May 2025 | 57.8 | 0.00 | 0.00 | 14.29 | |
| Monaco | National Council | Unicameral | 05 Feb 2023 | 16 Feb 2023 | 51.66 | 0.00 | 20.83 | 37.50 | |
| Mongolia | State Great Hural | Unicameral | 28 Jun 2024 | 02 Jul 2024 | 47.5 | 0.79 | 15.87 | 40.48 | |
| Montenegro | Parliament | Unicameral | 11 Jun 2023 | 27 Jul 2023 | 42.1 | 4.94 | 46.91 | 71.60 | |
| Morocco | House of Representatives | Bicameral | Lower chamber | 08 Sep 2021 | 08 Oct 2021 | - | 4.56 | 17.47 | 28.35 |
| Morocco | House of Councillors | Bicameral | Upper chamber | 05 Oct 2021 | 09 Oct 2021 | - | - | - | - |
| Mozambique | Assembly of the Republic | Unicameral | 09 Oct 2024 | 13 Jan 2025 | 50.6 | 6.20 | 24.79 | 43.80 | |
| Namibia | National Assembly | Bicameral | Lower chamber | 27 Nov 2024 - 30 Nov 2024 | 20 Mar 2025 | 49 | 7.32 | 23.17 | 34.15 |
| Namibia | National Council | Bicameral | Upper chamber | 12 Dec 2025 | 12 Dec 2025 | - | 0.00 | 9.52 | 28.57 |
| Nauru | Parliament | Unicameral | 11 Oct 2025 | 14 Oct 2025 | - | - | - | - | |
| Nepal | House of Representatives | Bicameral | Lower chamber | 05 Mar 2026 | 02 Apr 2026 | - | - | - | - |
| Nepal | National Assembly | Bicameral | Upper chamber | 25 Jan 2026 | 09 Mar 2026 | - | - | - | - |
| Netherlands | House of Representatives | Bicameral | Lower chamber | 29 Oct 2025 | 12 Nov 2025 | 43.8 | 6.00 | 44.00 | 60.00 |
| Netherlands | Senate | Bicameral | Upper chamber | 30 May 2023 | 13 Jun 2023 | 58.35 | 0.00 | 8.00 | 13.33 |
| New Zealand | House of Representatives | Unicameral | 14 Oct 2023 | 05 Dec 2023 | 49.07 | 4.10 | 18.03 | 40.98 | |
| Nicaragua | National Assembly | Unicameral | 07 Nov 2021 | 09 Jan 2022 | 59.66 | 0.00 | 5.49 | 14.29 | |
| Niger | Advisory Council for the Refoundation | Unicameral | 01 May 2025 | 28 Jun 2025 | - | - | - | - | |
| Nigeria | House of Representatives | Bicameral | Lower chamber | 25 Feb 2023 | 13 Jun 2023 | 51.5 | 1.12 | 14.01 | 29.97 |
| Nigeria | Senate | Bicameral | Upper chamber | 25 Feb 2023 | 13 Jun 2023 | 58.6 | 0.00 | 1.89 | 6.60 |
| North Macedonia | Assembly of the Republic | Unicameral | 08 May 2024 | 28 May 2024 | - | 2.50 | 28.33 | 49.17 | |
| Norway | Parliament | Unicameral | 08 Sep 2025 | 01 Oct 2025 | 45.1 | 14.79 | 36.09 | 50.30 | |
| Oman | Shura Council | Bicameral | Lower chamber | 29 Oct 2023 | 09 Nov 2023 | 48.62 | - | - | - |
| Oman | State Council | Bicameral | Upper chamber | 01 Nov 2023 | 01 Nov 2023 | - | - | - | - |
| Pakistan | National Assembly | Bicameral | Lower chamber | 08 Feb 2024 | 29 Feb 2024 | - | 2.25 | 12.22 | 22.51 |
| Pakistan | Senate | Bicameral | Upper chamber | 02 Apr 2024 | 09 Apr 2024 | - | 0.00 | 7.69 | 12.09 |
| Palau | House of Delegates | Bicameral | Lower chamber | 05 Nov 2024 | 16 Jan 2025 | - | - | - | - |
| Palau | Senate | Bicameral | Upper chamber | 05 Nov 2024 | 16 Jan 2025 | - | 0.00 | 0.00 | 6.67 |
| Panama | National Assembly | Unicameral | 05 May 2024 | 01 Jul 2024 | 46.5 | 11.59 | 34.78 | 49.28 | |
| Papua New Guinea | National Parliament | Unicameral | 04 Jul 2022 - 22 Jul 2022 | 08 Aug 2022 | 56.88 | 0.00 | 7.95 | 14.77 | |
| Paraguay | Chamber of Deputies | Bicameral | Lower chamber | 30 Apr 2023 | 01 Jul 2023 | 46.19 | 7.50 | 28.75 | 46.25 |
| Paraguay | Senate | Bicameral | Upper chamber | 30 Apr 2023 | 01 Jul 2023 | 53.4 | 0.00 | 9.09 | 29.55 |
| Peru | Congress of the Republic | Unicameral | 11 Apr 2021 | 26 Jul 2021 | 50.21 | 3.88 | 26.36 | 33.33 | |
| Philippines | House of Representatives | Bicameral | Lower chamber | 12 May 2025 | 28 Jul 2025 | - | 5.41 | 21.02 | 30.89 |
| Philippines | Senate | Bicameral | Upper chamber | 12 May 2025 | 28 Jul 2025 | 59.5 | 0.00 | 4.17 | 4.17 |
| Poland | Sejm | Bicameral | Lower chamber | 15 Oct 2023 | 13 Nov 2023 | 51 | 0.65 | 17.39 | 31.74 |
| Poland | Senate | Bicameral | Upper chamber | 15 Oct 2023 | 13 Nov 2023 | 61.86 | 0.00 | 3.00 | 9.00 |
| Portugal | Assembly of the Republic | Unicameral | 18 May 2025 | 03 Jun 2025 | 49.3 | 6.09 | 17.39 | 37.39 | |
| Qatar | Shura Council | Unicameral | 09 Oct 2025 | 21 Oct 2025 | - | - | - | - | |
| Republic of Korea | National Assembly | Unicameral | 10 Apr 2024 | 30 May 2024 | 56.3 | 0.00 | 5.67 | 9.67 | |
| Republic of Moldova | Parliament | Unicameral | 28 Sep 2025 | 22 Oct 2025 | 48.3 | 2.97 | 19.80 | 45.54 | |
| Romania | Chamber of Deputies | Bicameral | Lower chamber | 01 Dec 2024 | 20 Dec 2024 | 46.6 | 3.02 | 27.79 | 48.04 |
| Romania | Senate | Bicameral | Upper chamber | 01 Dec 2024 | 20 Dec 2024 | 50.7 | 0.00 | 14.93 | 29.85 |
| Russian Federation | State Duma | Bicameral | Lower chamber | 19 Sep 2021 | 12 Oct 2021 | 53.1 | 1.79 | 14.73 | 27.01 |
| Russian Federation | Council of the Federation | Bicameral | Upper chamber | - | - | - | 0.00 | 3.55 | 13.02 |
| Rwanda | Chamber of Deputies | Bicameral | Lower chamber | 15 Jul 2024 - 16 Jul 2024 | 14 Aug 2024 | 49 | 3.75 | 13.75 | 36.25 |
| Rwanda | Senate | Bicameral | Upper chamber | 16 Sep 2024 - 17 Sep 2024 | 26 Sep 2024 | 58.5 | 0.00 | 0.00 | 0.00 |
| Saint Kitts and Nevis | National Assembly | Unicameral | 05 Aug 2022 | 25 Oct 2022 | 46.7 | 0.00 | 38.46 | 46.15 | |
| Saint Lucia | House of Assembly | Bicameral | Lower chamber | 01 Dec 2025 | 16 Dec 2025 | - | - | - | - |
| Saint Lucia | Senate | Bicameral | Upper chamber | 16 Dec 2025 | 16 Dec 2025 | - | - | - | - |
| Saint Vincent and the Grenadines | House of Assembly | Unicameral | 27 Nov 2025 | 23 Dec 2025 | - | - | - | - | |
| Samoa | Legislative Assembly | Unicameral | 29 Aug 2025 | 16 Sep 2025 | - | - | - | - | |
| San Marino | Great and General Council | Unicameral | 09 Jun 2024 | 02 Jul 2024 | 49 | 8.33 | 25.00 | 33.33 | |
| Sao Tome and Principe | National Assembly | Unicameral | 25 Sep 2022 | 08 Nov 2022 | 46.5 | 1.82 | 23.64 | 38.18 | |
| Saudi Arabia | Shura Council | Unicameral | 02 Sep 2024 | 02 Sep 2024 | - | 0.00 | 2.11 | 12.68 | |
| Senegal | National Assembly | Unicameral | 17 Nov 2024 | 02 Dec 2024 | 45 | 3.85 | 31.54 | 53.85 | |
| Serbia | National Assembly | Unicameral | 17 Dec 2023 | 06 Feb 2024 | 48.5 | 4.00 | 25.20 | 45.20 | |
| Seychelles | National Assembly | Unicameral | 27 Sep 2025 | 28 Oct 2025 | 48.6 | 2.94 | 14.71 | 38.24 | |
| Sierra Leone | Parliament | Unicameral | 24 Jun 2023 | 13 Jul 2023 | 47.6 | 2.01 | 22.15 | 46.31 | |
| Singapore | Parliament | Unicameral | 03 May 2025 | 05 Sep 2025 | 48.3 | 0.00 | 22.22 | 38.38 | |
| Slovakia | National Council | Unicameral | 30 Sep 2023 | 25 Oct 2023 | 48.8 | 3.33 | 24.00 | 42.00 | |
| Slovenia | National Assembly | Bicameral | Lower chamber | 22 Mar 2026 | 10 Apr 2026 | 48.44 | 5.56 | 22.22 | 35.56 |
| Slovenia | National Council | Bicameral | Upper chamber | 23 Nov 2022 - 24 Nov 2022 | 12 Dec 2022 | 54.77 | 2.50 | 15.00 | 20.00 |
| Solomon Islands | National Parliament | Unicameral | 17 Apr 2024 | 17 May 2024 | 52.5 | 0.00 | 4.00 | 20.00 | |
| Somalia | House of the People | Bicameral | Lower chamber | 01 Nov 2021 - 05 May 2022 | 16 Apr 2022 | - | - | - | - |
| Somalia | Upper House | Bicameral | Upper chamber | 27 Jul 2021 - 13 Nov 2021 | 16 Apr 2022 | - | - | - | - |
| South Africa | National Assembly | Bicameral | Lower chamber | 29 May 2024 | 14 Jun 2024 | - | 2.75 | 20.25 | 36.25 |
| South Africa | National Council of Provinces | Bicameral | Upper chamber | 15 Jun 2024 | 15 Jun 2024 | - | 0.00 | 14.81 | 33.33 |
| South Sudan | Transitional National Legislative Assembly | Bicameral | Lower chamber | 10 May 2021 | 02 Aug 2021 | - | - | - | - |
| South Sudan | Council of States | Bicameral | Upper chamber | 02 Aug 2021 | 02 Aug 2021 | - | - | - | - |
| Spain | Congress of Deputies | Bicameral | Lower chamber | 23 Jul 2023 | 17 Aug 2023 | 51.5 | 2.00 | 15.43 | 27.71 |
| Spain | Senate | Bicameral | Upper chamber | 23 Jul 2023 | 17 Aug 2023 | 53.25 | 1.93 | 10.04 | 18.92 |
| Sri Lanka | Parliament | Unicameral | 14 Nov 2024 | 21 Nov 2024 | 50.9 | 1.88 | 15.02 | 29.11 | |
| Suriname | National Assembly | Unicameral | 25 May 2025 | 30 Jun 2025 | 49.8 | 2.00 | 22.00 | 44.00 | |
| Sweden | Parliament | Unicameral | 11 Sep 2022 | 27 Sep 2022 | 46.7 | 6.59 | 28.94 | 43.84 | |
| Switzerland | National Council | Bicameral | Lower chamber | 22 Oct 2023 | 04 Dec 2023 | 49.29 | 1.50 | 19.00 | 39.00 |
| Switzerland | Council of States | Bicameral | Upper chamber | 22 Oct 2023 | 04 Dec 2023 | 54.96 | 0.00 | 10.87 | 23.91 |
| Syrian Arab Republic | People's Assembly | Unicameral | 05 Oct 2025 | - | - | - | - | - | |
| Tajikistan | House of Representatives | Bicameral | Lower chamber | 02 Mar 2025 | 19 Mar 2025 | 49 | 0.00 | 19.35 | 37.10 |
| Tajikistan | National Assembly | Bicameral | Upper chamber | 28 Mar 2025 | 11 Apr 2025 | 48.6 | 0.00 | 12.90 | 45.16 |
| Thailand | House of Representatives | Bicameral | Lower chamber | 08 Feb 2026 | 14 Mar 2026 | - | - | - | - |
| Thailand | Senate | Bicameral | Upper chamber | 09 Jun 2024 - 26 Jun 2024 | 23 Jul 2024 | - | 0.00 | 1.50 | 11.50 |
| Timor-Leste | National Parliament | Unicameral | 21 May 2023 | 22 Jun 2023 | - | 0.00 | 3.08 | 26.15 | |
| Togo | National Assembly | Bicameral | Lower chamber | 29 Apr 2024 | 21 May 2024 | - | - | - | - |
| Togo | Senate | Bicameral | Upper chamber | 15 Feb 2025 | 06 Mar 2025 | - | - | - | - |
| Tonga | Legislative Assembly | Unicameral | 20 Nov 2025 | 15 Dec 2025 | - | - | - | - | |
| Trinidad and Tobago | House of Representatives | Bicameral | Lower chamber | 28 Apr 2025 | 23 May 2025 | - | - | - | - |
| Trinidad and Tobago | Senate | Bicameral | Upper chamber | 23 May 2025 | 23 May 2025 | - | - | - | - |
| Tunisia | Assembly of People's Representatives | Bicameral | Lower chamber | 17 Dec 2022 - 29 Jan 2023 | 13 Mar 2023 | - | 5.23 | 22.22 | 44.44 |
| Tunisia | National Council of Regions and Districts | Bicameral | Upper chamber | 19 Apr 2024 | 19 Apr 2024 | - | - | - | - |
| Türkiye | Grand National Assembly of Türkiye | Unicameral | 14 May 2023 | 02 Jun 2023 | 52.1 | 0.83 | 10.67 | 24.00 | |
| Turkmenistan | Assembly | Unicameral | 26 Mar 2023 | 06 Apr 2023 | 40.8 | 13.71 | 54.84 | 66.94 | |
| Tuvalu | Parliament of Tuvalu | Unicameral | 26 Jan 2024 | 26 Feb 2024 | - | - | - | - | |
| Uganda | Parliament | Unicameral | 15 Jan 2026 - 06 Feb 2026 | 13 May 2026 | 46.9 | 3.83 | 24.33 | 48.47 | |
| Ukraine | Parliament | Unicameral | 21 Jul 2019 | 29 Aug 2019 | - | 7.09 | 46.34 | 63.36 | |
| United Arab Emirates | Federal National Council | Unicameral | 07 Oct 2023 | 06 Nov 2023 | 52.32 | 0.00 | 7.50 | 22.50 | |
| United Kingdom | House of Commons | Bicameral | Lower chamber | 04 Jul 2024 | 09 Jul 2024 | 49.2 | 3.82 | 27.34 | 42.64 |
| United Kingdom | House of Lords | Bicameral | Upper chamber | - | - | - | 0.12 | 0.87 | 2.11 |
| United Republic of Tanzania | National Assembly | Unicameral | 29 Oct 2025 | 11 Nov 2025 | - | - | - | - | |
| United States of America | House of Representatives | Bicameral | Lower chamber | 05 Nov 2024 | 03 Jan 2025 | 57.7 | 0.23 | 8.29 | 18.43 |
| United States of America | Senate | Bicameral | Upper chamber | 05 Nov 2024 | 03 Jan 2025 | 63.9 | 0.00 | 2.00 | 7.00 |
| Uruguay | House of Representatives | Bicameral | Lower chamber | 27 Oct 2024 | 15 Feb 2025 | 50.4 | 6.06 | 20.20 | 41.41 |
| Uruguay | Senate | Bicameral | Upper chamber | 27 Oct 2024 | 15 Feb 2025 | 57.4 | 0.00 | 9.68 | 22.58 |
| Uzbekistan | Legislative Chamber | Bicameral | Lower chamber | 27 Oct 2024 | 18 Nov 2024 | 48.5 | 1.33 | 23.33 | 42.00 |
| Uzbekistan | Senate | Bicameral | Upper chamber | 07 Nov 2024 - 12 Nov 2024 | 19 Nov 2024 | 58.2 | 1.75 | 1.75 | 7.02 |
| Vanuatu | Parliament | Unicameral | 16 Jan 2025 | 11 Feb 2025 | - | - | - | - | |
| Venezuela (Bolivarian Republic of) | National Assembly | Unicameral | 25 May 2025 | 05 Jan 2026 | - | - | - | - | |
| Viet Nam | National Assembly | Unicameral | 15 Mar 2026 | 06 Apr 2026 | 49.77 | 1.60 | 10.42 | 29.26 | |
| Yemen | House of Representatives | Bicameral | Lower chamber | 27 Apr 2003 | 10 May 2003 | - | - | - | - |
| Yemen | Shura Council | Bicameral | Upper chamber | 28 Apr 2001 | 28 Apr 2001 | - | - | - | - |
| Zambia | National Assembly | Unicameral | 12 Aug 2021 | 10 Sep 2021 | 48.96 | 0.60 | 17.37 | 34.13 | |
| Zimbabwe | National Assembly | Bicameral | Lower chamber | 23 Aug 2023 | 08 Sep 2023 | 47.6 | 6.12 | 25.54 | 47.12 |
| Zimbabwe | Senate | Bicameral | Upper chamber | 23 Aug 2023 | 08 Sep 2023 | 63.2 | 0.00 | 0.00 | 3.33 |
Notes:
Data on age is compiled by the Inter-Parliamentary Union on the basis of information provided by parliaments.
The data refers to the age of parliamentarians at the start of the new legislature, following elections, or renewal of the membership. Please note that the data is not updated during the legislature.
The global and regional averages are based on available data. The table indicates the number of chambers and seats included in the averages. Please note that this is not the total number of chambers and seats that exist in the world or a given region.