Morgan County, Indiana
County seat: Martinsville · Population 74,967 (2025) · 404 sq mi
Morgan County is the 24th most populous of Indiana's 92 counties, with 74,967 people (2025 estimate). Its county seat is Martinsville. It is part of the Central (Region 5) region, one of the 12 Indiana economic growth regions (DWD / WorkOne regions). The map shows its 7 cities and towns and the 7 neighboring counties.
Morgan County facts
- County seat
- Martinsville
- Population (2025 estimate)
- 74,967 +4.5% since 2020
- Land area
- 404 sq mi 41st largest of 92
- Water area
- 6 sq mi
- Population density
- 186 per sq mi
- Established
- 1822
- Named after
- Daniel Morgan American pioneer, soldier, and politician (1736-1802)
- Largest city
- Martinsville 12,141
- Median household income
- $79,429
- Cities and towns
- 7 plus 6 CDPs
- ZIP codes
- 14
- Time zone
- Eastern
- FIPS code
- 18109
Cities and towns in Morgan County
Morgan County has 7 incorporated cities, towns and villages. Populations count the people living inside Morgan County; cities that cross a county line also list the other counties.
| Name | Type | Population 2025 | Also in |
|---|---|---|---|
| Martinsville (county seat) | City | 12,141 | |
| Mooresville | Town | 10,173 | |
| Brooklyn | Town | 2,621 | |
| Monrovia | Town | 2,485 | |
| Morgantown | Town | 1,007 | |
| Paragon | Town | 584 | |
| Bethany | Town | 95 |
Unincorporated communities (CDPs)
Census-designated places are communities without their own city government; the county provides their services.
| Community | Population | Also in |
|---|---|---|
| Foxcliff Estates | 1,674 | |
| Waverly | 967 | |
| Painted Hills | 948 | |
| Browns Crossing | 658 | |
| Eminence | 216 | |
| Centerton | 136 |
ZIP codes in Morgan County
14 ZIP codes reach into Morgan County. ZIP codes ignore county lines, so some also cover a neighboring county.
- 46106 also Johnson County
- 46111
- 46113 also Marion and Hendricks counties
- 46118 also Hendricks County
- 46120 also Putnam and Owen counties
- 46125
- 46151 also Monroe and Johnson counties
- 46157
- 46158 also Hendricks County
- 46160 also Brown and Johnson counties
- 46166 also Owen County
- 46180 also Hendricks County
- 47433 also Owen and Monroe counties
- 47456 also Owen and Putnam counties
Population of Morgan County, 2020–2025
Morgan County grew by 3,191 people (+4.5%) between April 2020 and July 2025: 590 more deaths than births and a net gain of 3,777 people from migration.
| Year (July 1) | Population |
|---|---|
| 2020 | 71,842 |
| 2021 | 72,290 |
| 2022 | 72,326 |
| 2023 | 73,245 |
| 2024 | 74,045 |
| 2025 | 74,967 |
Neighboring counties
- Johnson County east · 174,262 people
- Hendricks County north · 193,510 people
- Monroe County south · 143,345 people
- Putnam County northwest · 37,876 people
- Owen County southwest · 21,886 people
- Brown County southeast · 15,777 people
- Marion County northeast · 992,196 people
Printable Morgan County map
The PDF is a vector file with real text: it prints sharp on Letter paper and you can search it for a town. The PNG is 2400 pixels wide for slides and documents. Both are free to use with a credit to WhichCounty.
- PDF (Letter) (87 KB)
- PNG (2400 px) (67 KB)
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Sources
- Boundaries: U.S. Census Bureau, 2025 Cartographic Boundary Files (1:500,000).
- Population: Census Bureau county and city estimates, Vintage 2025. CDP populations: American Community Survey 2020–2024.
- Places and ZIP codes: Census Bureau 2026 Gazetteer and 2020 ZIP Code Tabulation Area relationship files.
- County seat, founding year and name origin: Wikidata (CC0), checked against state sources.
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