Martinsville is a city located in Morgan County Indiana. It is also the county seat of Morgan County. With a 2020 population of 11,707, it is the 72nd largest city in Indiana and the 2775th largest city in the United States . Martinsville is currently growing at a rate of 0.16% annually but its population has decreased by -1.02% since the most recent census, which recorded a population of 11,828 in 2010. Martinsville reached it's highest population of 11,781 in 2010. Spanning over 5 miles, Martinsville has a population density of 2,584 people per square mile.
The average household income in Martinsville is $58,478 with a poverty rate of 19.55%. The median rental costs in recent years comes to $759 per month, and the median house value is $98,500. The median age in Martinsville is 38.3 years, 35.6 years for males, and 41 years for females.