Lagnieu
| Lagnieu | |
|---|---|
| Commune | |
| Location of Lagnieu | |
| Coordinates: 45°54′11″N 5°20′53″E / 45.903°N 5.348°E | |
| Country | France | 
| Region | Auvergne-Rhône-Alpes | 
| Department | Ain | 
| Arrondissement | Belley | 
| Canton | Lagnieu | 
| Government | |
| • Mayor (2020–2026) | André Moingeon | 
| Area 1 | 27.25 km2 (10.52 sq mi) | 
| Population  (2022) | 7,321 | 
| • Density | 270/km2 (700/sq mi) | 
| Time zone | UTC+01:00 (CET) | 
| • Summer (DST) | UTC+02:00 (CEST) | 
| INSEE/Postal code | 01202 /01150 | 
| Elevation | 192–643 m (630–2,110 ft) (avg. 239 m or 784 ft) | 
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Lagnieu (French pronunciation: [laɲø]; Arpitan: Lagniœ) is a commune in the Ain department in eastern France.