Gas
- County:
- Allen County
- County Seat:
- No
- Area (mi²):
- 0.72
- State:
- Kansas
Gas is a city located in Allen County, Kansas. Gas has a 2026 population of 466. Gas is currently declining at a rate of -0.43% annually and its population has decreased by -1.06% since the most recent census, which recorded a population of 471 in 2020.