City in Allen County, Kansas · 4.6 sq mi · 1,122 people per sq mi
5,210 people live in Iola. The typical household earns $54,221, and the median resident is 32.6 years old.
2026 projection
From 5,396 in 2020
Poverty rate 8.59%
Men 29.2 · Women 39.9
1880–2026
5,210
2026 projection
3.4% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1880–2026
5,210
2026 projection
3.4% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 5,210 | -30 | 0.57% |
|---|---|---|---|
| 2025 | 5,240 | -42 | 0.80% |
| 2024 | 5,282 | -51 | 0.96% |
| 2023 | 5,333 | -19 | 0.36% |
| 2022 | 5,352 | -23 | 0.43% |
| 2021 | 5,375 | -21 | 0.39% |
| 2020 | 5,396 | +8 | 0.15% |
| 2019 | 5,388 | -40 | 0.74% |
| 2018 | 5,428 | -15 | 0.28% |
| 2017 | 5,443 | -32 | 0.58% |
Showing 10 of 30 years.
The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.
Iola has a population change lower than Allen County, Kansas, and the U.S.
Change from July 1, 2020 to July 1, 2025 population estimates—not annualized growth or site projections.
Source: U.S. Census Bureau. U.S. totals are summed from the 50 states and D.C.; unavailable comparisons are omitted.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 53 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 12 residents
42% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 42% | 46% | 38% |
| Never married | 31% | 38% | 25% |
| Divorced | 18% | 11% | 24% |
| Widowed | 7% | 4% | 9% |
| Separated | 3% | 1% | 5% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
14 sources