Coatesville, IN has a population of 572 and is the 18,743rd largest city in the United States. The population density is 875 per sq mi which is 388% higher than the Indiana average and 866% higher than the national average. The median age in Coatesville is 33 which is approximately 11% lower than the Indiana average of 37. In Coatesville, 64% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 86% of Coatesville residents were born in Indiana, 14% were born out of state, 0% were born outside of the United States and 0% were foreign born.