Chassieu

Chassieu Chassiô (Arpitan)
Commune
The town hall of the commune
Coat of arms
Location of Chassieu
Chassieu Show map of France Chassieu Show map of Auvergne-Rhône-Alpes
Coordinates: 45°44′42″N 4°57′58″E / 45.745°N 4.966°E / 45.745; 4.966
Country	France
Region	Auvergne-Rhône-Alpes
Metropolis	Lyon Metropolis
Arrondissement	Lyon
Government
• Mayor (2021–2026)	Jean-Jacques Sellès1
Area 1	11.57 km2 (4.47 sq mi)
Population  (2023)2	11,208
• Density	968.7/km2 (2,509/sq mi)
Time zone	UTC+01:00 (CET)
• Summer (DST)	UTC+02:00 (CEST)
INSEE/Postal code	69271 /69680
Elevation	190–238 m (623–781 ft) (avg. 204 m or 669 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Chassieu (French pronunciation: [ʃasjø]; Arpitan: Chassiô [θa.ˈʃy]) is a commune in the Metropolis of Lyon in the Auvergne-Rhône-Alpes region in eastern France.

Historical population Year Pop. ±% p.a. 1968 2,867 —     1975 3,599 +3.30% 1982 6,882 +9.70% 1990 8,508 +2.69% 1999 9,049 +0.69% 2007 9,371 +0.44% 2012 9,800 +0.90% 2017 10,359 +1.12% 2023 11,208 +1.32% Source: INSEE3

Chassieu has been twinned with Coleshill, England, near Birmingham since 1983.