# Population aged 15 to 64 in Siena

Population aged 15 to 64 in Siena was 159,800 in 2025. Source: Eurostat, European Commission.

- Indicator id: `population_15_64`
- Place id: `it-nuts-iti19`
- Unit: persons
- Definition: Resident population aged 15 to 64 on 1 January (Eurostat).
- Note: The working-age band Eurostat uses for EU comparisons. population_16_64 (INE, Spain) starts at 16, so the two series differ.
- Source: Eurostat, European Commission, Population on 1 January by broad age group, 15 to 64, by NUTS 2 and 3 region (demo_r_pjanaggr3) (https://ec.europa.eu/eurostat/databrowser/view/demo_r_pjanaggr3/default/table)
- Retrieved: 2026-10-09
- License: Eurostat reuse policy (commercial and non-commercial reuse, attribution required)
- Citation: Eurostat. Population on 1 January by broad age group, 15 to 64, by NUTS 2 and 3 region (demo_r_pjanaggr3). https://ec.europa.eu/eurostat/databrowser/view/demo_r_pjanaggr3/default/table. Retrieved 2026-10-09.
- Web page: https://invokely.ai/en/population-15-64/siena-iti19
- CSV: https://invokely.ai/download/population-15-64/siena-iti19.csv
- API: https://invokely.ai/api/v1/series?indicator=population_15_64&place=it-nuts-iti19

| Period | persons |
|---|---:|
| 2025 | 159,800 |
| 2024 | 160,304 |
| 2023 | 160,669 |
| 2022 | 160,559 |
| 2021 | 162,429 |
| 2020 | 163,021 |
| 2019 | 163,759 |
| 2018 | 164,258 |
| 2017 | 164,339 |
| 2016 | 165,346 |
| 2015 | 166,216 |
| 2014 | 167,429 |
| 2013 | 168,512 |
| 2012 | 169,363 |
| 2011 | 169,905 |
| 2010 | 169,382 |
| 2009 | 168,514 |
| 2008 | 166,361 |
| 2007 | 163,819 |
| 2006 | 163,620 |
| 2005 | 163,874 |
| 2004 | 162,911 |
| 2003 | 160,989 |
| 2002 | 160,490 |
| 2001 | 160,466 |