Lakeville, IN has a population of 841 and is the 16,263rd largest city in the United States. The population density is 1,342 per sq mi which is 647% higher than the Indiana average and 1381% higher than the national average. The median age in Lakeville is 37 which is approximately 1% lower than the Indiana average of 37. In Lakeville, 52% of the population over 15 years of age are married, 98% speak English and 1% speak Spanish. 79% of Lakeville residents were born in Indiana, 20% were born out of state, 1% were born outside of the United States and 1% were foreign born.