County in Kansas · 944 sq mi · 12 people per sq mi
11,589 people live in Marion County. The typical household earns $64,695, and the median resident is 43.5 years old.
2026 projection
From 11,788 in 2020
Poverty rate 9.15%
Men 42.4 · Women 44.7
1860–2026
11,589
2026 projection
1.7% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1860–2026
11,589
2026 projection
1.7% since 2020 (decrease)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 11,589 | -45 | 0.39% |
|---|---|---|---|
| 2025 | 11,634 | -45 | 0.39% |
| 2024 | 11,679 | -97 | 0.82% |
| 2023 | 11,776 | -23 | 0.19% |
| 2022 | 11,799 | +51 | 0.43% |
| 2021 | 11,748 | -40 | 0.34% |
| 2020 | 11,788 | -43 | 0.36% |
| 2019 | 11,831 | -54 | 0.45% |
| 2018 | 11,885 | -65 | 0.54% |
| 2017 | 11,950 | -58 | 0.48% |
Showing 10 of 31 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 118 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 11 residents
54% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 54% | 55% | 54% |
| Never married | 27% | 31% | 23% |
| Divorced | 10% | 10% | 11% |
| Widowed | 8% | 3% | 12% |
| Separated | <1% | 1% | <1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
8 sources, all from the U.S. Census Bureau