Osny, Île-de-France
Osny: Commune in Val-d'Oise, France
About
Quick Facts about Osny
| Population : | 16,910 |
| Country : | France |
| State : | Île-de-France (France) |
| County : | Val d'Oise |
| Head of government : | Mayor of Osny |
| Postal code : | 95520 |
| Area : | 12.52 km2 |
| Official name : | Osny |
| Male population : | 8764 |
| Female population : | 8146 |
| Time Zone : | UTC+01:00, UTC+02:00 |
| Local time : | 03:12:03 (6th December 2025) |
Geography
Osny is located at 49°4'12"N 2°3'46"E (49.0701000, 2.0627700). It has 2 neighbors: Pontoise and Ennery.
Osny map
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- Official Website
Official website of Osny
Jean-Michel Levesque ,
Demographics
| Year | Population | % Change | Method |
| 1795 | 422 | - | register office |
| 1800 | 426 | 0.94% | register office |
| 1806 | 455 | 6.37% | register office |
| 1821 | 479 | 5.01% | register office |
| 1831 | 482 | 0.62% | register office |
| 1836 | 495 | 2.63% | register office |
| 1841 | 495 | 0% | register office |
| 1846 | 497 | 0.4% | register office |
| 1851 | 471 | -5.52% | register office |
| 1856 | 462 | -1.95% | census |
| 1861 | 467 | 1.07% | census |
| 1866 | 677 | 31.02% | register office |
| 1872 | 506 | -33.79% | register office |
| 1876 | 473 | -6.98% | register office |
| 1881 | 428 | -10.51% | register office |
| 1886 | 445 | 3.82% | register office |
| 1891 | 450 | 1.11% | census |
| 1896 | 488 | 7.79% | register office |
| 1901 | 512 | 4.69% | register office |
| 1906 | 522 | 1.92% | register office |
| 1911 | 627 | 16.75% | register office |
| 1921 | 518 | -21.04% | register office |
| 1926 | 585 | 11.45% | register office |
| 1931 | 672 | 12.95% | register office |
| 1936 | 8,310 | 91.91% | register office |
| 1946 | 7,960 | -4.4% | register office |
| 1954 | 8,982 | 11.38% | register office |
| 1962 | 11,945 | 24.81% | register office |
| 1968 | 15,743 | 24.13% | register office |
| 1975 | 16,465 | 4.39% | register office |
| 1982 | 17,959 | 8.32% | register office |
| 1990 | 18,643 | 3.67% | register office |
| 1999 | 19,368 | 3.74% | register office |
| 2006 | 20,086 | 3.57% | register office |
| 2008 | 20,232 | 0.72% | register office |
| 2011 | 20,306 | 0.36% | register office |
| 2013 | 16,441 | -23.51% | register office |
| 2015 | 17,183 | 4.32% | register office |
| 2016 | 17,201 | 0.1% | register office |
| 2017 | 16,910 | -1.72% | census |
Oni, Osny, ao ni, Они, Оні, 奥尼
