County in Kentucky · 344 sq mi · 59 people per sq mi
20,232 people live in Marion County. The typical household earns $59,627, and the median resident is 40.4 years old.
2026 projection
From 19,587 in 2020
Poverty rate 16.97%
Men 38.9 · Women 43
1840–2026
20,232
2026 projection
3.3% since 2020 (increase)
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.
1840–2026
20,232
2026 projection
3.3% since 2020 (increase)
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 | 20,232 | +117 | 0.58% |
|---|---|---|---|
| 2025 | 20,115 | +117 | 0.59% |
| 2024 | 19,998 | +145 | 0.73% |
| 2023 | 19,853 | +133 | 0.67% |
| 2022 | 19,720 | +3 | 0.02% |
| 2021 | 19,717 | +130 | 0.66% |
| 2020 | 19,587 | +350 | 1.82% |
| 2019 | 19,237 | -77 | 0.40% |
| 2018 | 19,314 | +30 | 0.16% |
| 2017 | 19,284 | +148 | 0.77% |
Showing 10 of 33 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 197 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 6 residents
48% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 48% | 49% | 47% |
| Never married | 30% | 32% | 29% |
| Divorced | 14% | 13% | 15% |
| Widowed | 6% | 4% | 9% |
| Separated | 2% | 2% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
8 sources, all from the U.S. Census Bureau