Tergnier

Tergnier
Town hall
Location of Tergnier
Tergnier
Tergnier
Coordinates: 49°39′23″N 3°17′18″E / 49.6564°N 3.2883°E / 49.6564; 3.2883
CountryFrance
RegionHauts-de-France
DepartmentAisne
ArrondissementLaon
CantonTergnier
IntercommunalityCA Chauny Tergnier La Fère
Government
  Mayor (20202026) Michel Carreau (PCF)
Area
1
17.98 km2 (6.94 sq mi)
Population
 (2022)
13,261
  Density740/km2 (1,900/sq mi)
Time zoneUTC+01:00 (CET)
  Summer (DST)UTC+02:00 (CEST)
INSEE/Postal code
02738 /02700
Elevation44–90 m (144–295 ft)
(avg. 53 m or 174 ft)
1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries.

Tergnier (French pronunciation: [tɛʁɲe]) is a commune in the department of Aisne, Hauts-de-France, France. Its location on the Canal de Saint-Quentin and the Creil–Jeumont railway (Tergnier station) supported its development as an industrial centre in the second half of the 19th century.