| Rosny-sur-Seine | ||
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| Commune | ||
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Town hall
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| Coordinates: 49°00′02″N 1°37′57″E / 49.0006°N 1.6325°ECoordinates: 49°00′02″N 1°37′57″E / 49.0006°N 1.6325°E | ||
| Country | France | |
| Region | Île-de-France | |
| Department | Yvelines | |
| Arrondissement | Mantes-la-Jolie | |
| Canton | Mantes-la-Jolie | |
| Intercommunality | Mantes en Yvelines | |
| Government | ||
| • Mayor (2001–2008) | Françoise Descamps-Crosnier | |
| Area1 | 19.36 km2 (7.47 sq mi) | |
| Population (2006)2 | 5,110 | |
| • Density | 260/km2 (680/sq mi) | |
| Time zone | CET (UTC+1) | |
| • Summer (DST) | CEST (UTC+2) | |
| INSEE/Postal code | 78531 /78710 | |
| Elevation | 17–144 m (56–472 ft) (avg. 30 m or 98 ft) |
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1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km² (0.386 sq mi or 247 acres) and river estuaries. 2Population without double counting: residents of multiple communes (e.g., students and military personnel) only counted once. |
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1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km² (0.386 sq mi or 247 acres) and river estuaries.
Rosny-sur-Seine is a commune in the Yvelines department in the Île-de-France in north-central France.