Lagny sur Marne (Lagny-sur-Marne), Île-de-France
Lagny sur Marne: Commune in Seine-et-Marne, France
About
Quick Facts about Lagny-sur-Marne
| Population : | 21,356 |
| Country : | France |
| State : | Île-de-France (France) |
| County : | Seine-et-Marne |
| Head of government : | Mayor of Lagny-sur-Marne |
| Postal code : | 77400 |
| Area : | 5.72 km2 |
| Official name : | Lagny-sur-Marne, Lagny |
| Named for : | Marne |
| Male population : | 10063 |
| Female population : | 11293 |
| Altitude : | 144 feet / 44 meters |
| Capital city : | Lagny-sur-Marne is capital of canton of Lagny-sur-Marne |
| Time Zone : | UTC+01:00, UTC+02:00 |
| Local time : | 05:04:42 (6th December 2025) |
Geography
Lagny-sur-Marne is located at 48°52'0"N 2°43'0"E (48.8666700, 2.7166700). It has 8 neighbors: Thorigny sur Marne, Saint Thibault des Vignes, Pomponne, Montevrain, Gouvernes, Dampmart, Conches sur Gondoire and Chanteloup en Brie.
Lagny sur Marne map
Click "full screen" 
icon to open full mode. View satellite images
icon to open full mode. View satellite images
- Official Website
Official website of Lagny-sur-Marne
Jean-Paul Michel ,
Lagny-sur-Marne has 8 neighbours.
- Thorigny-sur-Marne commune in Seine-et-Marne, France
- Saint-Thibault-des-Vignes commune in Seine-et-Marne, France
- Pomponne commune in Seine-et-Marne, France
- Montévrain commune in Seine-et-Marne, France
- Gouvernes commune in Seine-et-Marne, France
- Dampmart commune in Seine-et-Marne, France
- Conches-sur-Gondoire commune in Seine-et-Marne, France
- Chanteloup-en-Brie commune in Seine-et-Marne, France
Demographics
| Year | Population | % Change | Method |
| 1793 | 1,607 | - | census |
| 1800 | 1,745 | 7.91% | census |
| 1806 | 1,786 | 2.3% | census |
| 1821 | 1,753 | -1.88% | census |
| 1831 | 1,869 | 6.21% | census |
| 1836 | 2,029 | 7.89% | census |
| 1841 | 2,212 | 8.27% | census |
| 1846 | 2,407 | 8.1% | census |
| 1851 | 2,716 | 11.38% | census |
| 1856 | 2,817 | 3.59% | census |
| 1861 | 3,458 | 18.54% | census |
| 1866 | 3,988 | 13.29% | census |
| 1872 | 3,999 | 0.28% | census |
| 1876 | 4,272 | 6.39% | census |
| 1881 | 4,621 | 7.55% | census |
| 1886 | 4,990 | 7.39% | census |
| 1891 | 4,998 | 0.16% | census |
| 1896 | 5,341 | 6.42% | census |
| 1901 | 5,442 | 1.86% | census |
| 1906 | 5,560 | 2.12% | census |
| 1911 | 5,880 | 5.44% | census |
| 1921 | 6,302 | 6.7% | census |
| 1926 | 6,936 | 9.14% | census |
| 1931 | 7,642 | 9.24% | census |
| 1936 | 8,310 | 8.04% | census |
| 1946 | 7,960 | -4.4% | census |
| 1954 | 8,982 | 11.38% | census |
| 1962 | 11,945 | 24.81% | census |
| 1968 | 15,743 | 24.13% | census |
| 1975 | 16,465 | 4.39% | census |
| 1982 | 17,959 | 8.32% | census |
| 1990 | 18,643 | 3.67% | census |
| 1999 | 19,368 | 3.74% | census |
| 2006 | 20,086 | 3.57% | census |
| 2008 | 20,232 | 0.72% | census |
| 2011 | 20,306 | 0.36% | census |
| 2013 | 20,718 | 1.99% | census |
| 2015 | 21,488 | 3.58% | census |
| 2016 | 21,580 | 0.43% | census |
| 2017 | 21,356 | -1.05% | census |
Lan'i-sjur-Marn, Lani na Marna, Lani sir Marn, lagny-swr-marny, laniswileumaleun, lnyy swr mrn, rani=shuru=marunu, Ланьи-сюр-Марн, Ланьї-сюр-Марн, Лањи на Марна, Лањи сир Марн, لاگنی-سور-مارنی, لنیی سور مرن, ラニー＝シュル＝マルヌ, 라니쉬르마른
