
Iola
- County:
- Allen County
- County Seat:
- Yes
- Area (mi²):
- 4.465
- State:
- Kansas
Iola is a city located in Allen County, Kansas. Iola has a 2025 population of 5,264. It is also the county seat of Allen County. Iola is currently declining at a rate of -0.51% annually and its population has decreased by -2.48% since the most recent census, which recorded a population of 5,398 in 2020.
The average household income in Iola is $59,461 with a poverty rate of 14.54%. The median age in Iola is 38.4 years: 34.5 years for males, and 42.1 years for females.