Altoona
- County:
- Wilson County
- County Seat:
- No
- Area (mi²):
- 0.534
- State:
- Kansas
Altoona is a city located in Wilson County, Kansas. Altoona has a 2026 population of 343. Altoona is currently declining at a rate of -0.58% annually and its population has decreased by -1.15% since the most recent census, which recorded a population of 347 in 2020.