Mercer County, Ohio
Mercer County, Ohio · ZIP 45310, 45822, 45826
- Census data · ACS 2019-2023
- 42,648 (2024 estimate)Population
- 16,278Households
- $78,036Median household income
- $208,600Median home value
- 24Towns with a page
- 12ZIP codes
Mercer County in numbersOfficial sources, refreshed yearly
| Census | Population |
|---|---|
| 2000 | 40,924 |
| 2010 | 40,814 |
| 2020 | 42,528 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county level, state 39, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 39, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 39, retrieved November 14, 2026.
Median household income $78,036 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 39, retrieved November 14, 2026.
- Owner occupied
- 12,965 units
- Renter occupied
- 3,313 units
- Vacancy rate
- 9.7%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 39, retrieved November 14, 2026.
17,679 employees in 1,050 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 39, retrieved November 14, 2026.
| Measure | Mercer County | Ohio |
|---|---|---|
| Population | 42,438 | 11,780,046 |
| Median household income | $78,036 | $69,680 |
| Median age | 39.1 | 39.6 |
| Median home value | $208,600 | $199,200 |
| Bachelor’s degree or higher | 22.2% | 30.9% |
| Foreign-born residents | 1.3% | 5.0% |
| Owner-occupied homes | 79.6% | 67.0% |
| Mean commute to work | 19.1 minutes | 23.6 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 39, retrieved November 14, 2026.
Townships, towns and villages in Mercer County24 with a page · sort by any column
| Type | |||
|---|---|---|---|
| Jefferson Township | Township | 13,817 | 33.7 sq mi |
| Celina | City | 10,945 | 5.04 sq mi |
| Butler Township | Township | 6,650 | 33.0 sq mi |
| Coldwater | Village | 4,729 | 1.94 sq mi |
| Granville Township | Township | 4,224 | 39.2 sq mi |
| Marion Township | Township | 3,365 | 41.4 sq mi |
| St. Henry | Village | 2,608 | 1.73 sq mi |
| Franklin Township | Township | 2,590 | 24.9 sq mi |
| Gibson Township | Township | 2,148 | 22.5 sq mi |
| Dublin Township | Township | 2,063 | 37.3 sq mi |
| Recovery Township | Township | 1,482 | 24.3 sq mi |
| Fort Recovery | Village | 1,474 | 1.24 sq mi |
| Union Township | Township | 1,343 | 36.4 sq mi |
| Washington Township | Township | 1,258 | 36.3 sq mi |
| Center Township | Township | 1,081 | 30.2 sq mi |
| Maria Stein | Census designated place | 1,065 | 5.08 sq mi |
| Rockford | Village | 1,031 | 0.87 sq mi |
| Hopewell Township | Township | 1,008 | 31.3 sq mi |
| Liberty Township | Township | 919 | 35.9 sq mi |
| Black Creek Township | Township | 638 | 35.8 sq mi |
| Mendon | Village | 613 | 0.55 sq mi |
| Chickasaw | Village | 354 | 0.24 sq mi |
| Burkettsville | Village | 267 | 0.17 sq mi |
| Montezuma | Village | 149 | 0.10 sq mi |
Populations: Census Population Estimates, Vintage 2024: subcounty totals, state 39 (2024). Land areas: Census Gazetteer 2025: counties. A dash means the figure is not in the cited file.
County officialsFrom public records
No county official is published yet. Names appear once a researcher drafts them from the county’s own site and a second person approves; office contacts only, never personal details.
Across Mercer County
No job is posted in Mercer County’s towns yet. Employers post from their business dashboard; public job banks are added once their terms are recorded.
No upcoming event is listed in Mercer County's towns yet. Members and businesses add events from any town page.
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Neighboring counties
Neighboring counties
- Adams CountyPopulation 36,584 (2024 estimate)
- Auglaize CountyPopulation 45,922 (2024 estimate)
- Darke CountyPopulation 51,462 (2024 estimate)
- Jay CountyPopulation 20,164 (2024 estimate)
- Shelby CountyPopulation 47,952 (2024 estimate)
- Van Wert CountyPopulation 28,887 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 18, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 39, retrieved November 14, 2026.