Altkirch
| |
|---|---|
Subprefecture and commune | |
The historic centre of Altkirch | |
![]() Location of Altkirch | |
| Coordinates: 47°37′N 7°14′E / 47.62°N 7.24°E | |
| Country | France |
| Region | Grand Est |
| Department | Haut-Rhin |
| Arrondissement | Altkirch |
| Canton | Altkirch |
| Intercommunality | CC Sundgau |
| Government | |
| • Mayor (2020–2026) | Nicolas Jander |
Area 1 | 9.54 km2 (3.68 sq mi) |
| Elevation | 310 m (1,020 ft) |
| Highest elevation | 392 m (1,286 ft) |
| Lowest elevation | 274 m (899 ft) |
| Population (2023) | 5,687 |
| • Density | 596/km2 (1,540/sq mi) |
| Time zone | UTC+01:00 (CET) |
| • Summer (DST) | UTC+02:00 (CEST) |
| INSEE/Postal code | 68004 /68130 |
| Dialling codes | 0389 |
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Altkirch (French: [altkiʁʃ] ⓘ, German: [ˈaltkɪʁç]; Alsatian: Àltkìrech; Frainc-Comtou: Artçhelitçhe) is a commune in the Haut-Rhin department in Alsace in north-eastern France.
The town is traditionally regarded as the capital of Sundgau.
The name of the commune means old church (Alsatian: Àlta Kìrch or Àlta Kìrech; German: Alte Kirche).
In the 1370s, the citizens of Altkirch battled and won against a company of Gugler mercenaries.

Its inhabitants are known as Altkirchois.
The resident population number of 5,700 is rather deceptive as some 15,500 people will be in town on a typical working day (4500 working, 3000 studying, 3000 for medical treatment and another 5000 divided between shopping, administrative offices, cultural and sporting activities).
| Year | Pop. | ±% p.a. |
|---|---|---|
| 1968 | 5,118 | — |
| 1975 | 5,319 | +0.55% |
| 1982 | 5,268 | −0.14% |
| 1990 | 5,090 | −0.43% |
| 1999 | 5,386 | +0.63% |
| 2007 | 5,644 | +0.59% |
| 2012 | 5,747 | +0.36% |
| 2017 | 5,737 | −0.03% |
| 2023 | 5,687 | −0.15% |
| Source: INSEE | ||
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