Prior Lake, MN has a population of 24,997 and is the 1,735th largest city in the United States. The population density is 1,570 per sq mi which is 2438% higher than the Minnesota average and 1633% higher than the national average. The median age in Prior Lake is 38 which is approximately 1% higher than the Minnesota average of 38. In Prior Lake, 68% of the population over 15 years of age are married, 94% speak English and 1% speak Spanish. 70% of Prior Lake residents were born in Minnesota, 24% were born out of state, 1% were born outside of the United States and 5% were foreign born.