County in Missouri · 454 sq mi · 7 people per sq mi
3,394 people live in Mercer County. The typical household earns $62,679, and the median resident is 42.4 years old.
2026 projection
From 3,516 in 2020
Poverty rate 13.46%
Men 39.9 · Women 43.7
1850–2026
3,394
2026 projection
3.5% 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.
1850–2026
3,394
2026 projection
3.5% 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 | 3,394 | -10 | 0.29% |
|---|---|---|---|
| 2025 | 3,404 | -10 | 0.29% |
| 2024 | 3,414 | -76 | 2.18% |
| 2023 | 3,490 | +19 | 0.55% |
| 2022 | 3,471 | -11 | 0.32% |
| 2021 | 3,482 | -34 | 0.97% |
| 2020 | 3,516 | -103 | 2.85% |
| 2019 | 3,619 | -6 | 0.17% |
| 2018 | 3,625 | -34 | 0.93% |
| 2017 | 3,659 | +5 | 0.14% |
Showing 10 of 32 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 35 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 7 residents
51% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 51% | 53% | 50% |
| Never married | 28% | 30% | 26% |
| Divorced | 12% | 11% | 13% |
| Widowed | 8% | 5% | 11% |
| Separated | 1% | 1% | 1% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
8 sources, all from the U.S. Census Bureau