Lake City, IA has a population of 1,759 and is the 11,784th largest city in the United States. The population density is 366 per sq mi which is 569% higher than the Iowa average and 303% higher than the national average. The median age in Lake City is 51 which is approximately 33% higher than the Iowa average of 38. In Lake City, 65% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 75% of Lake City residents were born in Iowa, 22% were born out of state, 1% were born outside of the United States and 3% were foreign born.