|  | This article may be expanded with text translated from the corresponding article in French. (December 2008)Click [show] for important translation instructions. 
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| Bonnesvalyn | |
|---|---|
| The church of Bonnesvalyn | |
| Coordinates: 49°07′22″N3°19′03″E / 49.1228°N 3.3175°E Coordinates: 49°07′22″N3°19′03″E / 49.1228°N 3.3175°E | |
| Country | France | 
| Region | Hauts-de-France | 
| Department | Aisne | 
| Arrondissement | Château-Thierry | 
| Canton | Villers-Cotterêts | 
| Intercommunality | CA Région de Château-Thierry | 
| Government | |
| • Mayor (2020–2026) | Stéphane Frère [1] | 
| Area 1 | 6.34 km2 (2.45 sq mi) | 
| Population | 221 | 
| • Density | 35/km2 (90/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code |  02099 /02400 | 
| Elevation | 100–210 m (330–690 ft) (avg. 115 m or 377 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Bonnesvalyn is a commune in the department of Aisne in Hauts-de-France in northern France.
| Year | Pop. | ±% | 
|---|---|---|
| 1962 | 189 | — | 
| 1968 | 148 | −21.7% | 
| 1975 | 142 | −4.1% | 
| 1982 | 139 | −2.1% | 
| 1990 | 203 | +46.0% | 
| 1999 | 199 | −2.0% | 
| 2004 | 200 | +0.5% | 
| 2009 | 233 | +16.5% | 
| 2014 | 241 | +3.4% | 
| 2018 | 228 | −5.4% | 
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