Castelnavet | |
|---|---|
The town hall in Castelnavet | |
![]() Location of Castelnavet | |
Location within France Location within Occitanie | |
| Coordinates: 43°40′28″N 0°07′50″E / 43.6744°N 0.1306°E | |
| Country | France |
| Region | Occitania |
| Department | Gers |
| Arrondissement | Mirande |
| Canton | Adour-Gersoise |
| Government | |
| • Mayor (2020–2026) | Joël Dagieux |
Area 1 | 18.06 km2 (6.97 sq mi) |
| Elevation | 305 m (1,001 ft) |
| Highest elevation | 245 m (804 ft) |
| Lowest elevation | 125 m (410 ft) |
| Population (2023) | 108 |
| • Density | 5.98/km2 (15.5/sq mi) |
| Time zone | UTC+01:00 (CET) |
| • Summer (DST) | UTC+02:00 (CEST) |
| INSEE/Postal code | 32081 /32290 |
| 1 French Land Register data, which excludes lakes, ponds, glaciers > 1 km2 (0.386 sq mi or 247 acres) and river estuaries. | |
Castelnavet (French pronunciation: [kastɛlnavɛ]; Occitan: Castèthnavèth) is a commune in the Gers department in southwestern France.

| Year | Pop. | ±% p.a. |
|---|---|---|
| 1968 | 224 | — |
| 1975 | 201 | −1.54% |
| 1982 | 154 | −3.73% |
| 1990 | 153 | −0.08% |
| 1999 | 155 | +0.14% |
| 2007 | 148 | −0.58% |
| 2012 | 127 | −3.01% |
| 2017 | 130 | +0.47% |
| 2023 | 108 | −3.04% |
| Source: INSEE | ||