
Martinsville
- County:
- Morgan County
- County Seat:
- Yes
- Area (mi²):
- 9.157
- State:
- Indiana
Martinsville is a city located in Morgan County, Indiana. Martinsville has a 2025 population of 11,960. It is also the county seat of Morgan County. Martinsville is currently growing at a rate of 0.06% annually and its population has increased by 0.29% since the most recent census, which recorded a population of 11,925 in 2020.
The average household income in Martinsville is $75,003 with a poverty rate of 11.83%. The median age in Martinsville is 36.9 years: 34.1 years for males, and 39.8 years for females.