Prior Lake (Dakota: Mayátho Bdé) is an exurban city 20 miles (32 km) southwest of Minneapolis seated next to Savage and Shakopee in Scott County in the state of Minnesota. Surrounding the shores of Lower and Upper Prior Lake, the city lies south of the Minnesota River in an area known as RiverSouth and establishes the urban fringe of the south-southwest portion of Minneapolis-St. Paul, the sixteenth largest metropolitan area in the United States. The population of Prior Lake was 22,796 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 18.33 square miles (47.47 km); 15.44 square miles (39.99 km) is land and 2.89 square miles (7.49 km) is water.
Upper Prior Lake and Lower Prior Lake sit at the center of the city in an elongated shape towards the southwest to Spring Lake. Prior Lake as a whole is the largest lake in the southern metro area.
As of the 2000, the median income for a household in the city was $75,363, and the median income for a family was $81,011. The per capita income for the city was $32,089. About 1.7% of families and 12.4% of the population were below the poverty line.
As of the census of 2010, there were 22,796 people, 8,447 households, and 6,211 families residing in the city. The population density was 1,476.4 inhabitants per square mile (570.0/km). There were 8,882 housing units at an average density of 575.3 per square mile (222.1/km). The racial makeup of the city was 91.0% White, 1.5% African American, 1.6% Native American, 3.0% Asian, 0.5% from other races, and 2.4% from two or more races. Hispanic or Latino of any race were 2.1% of the population.
There were 8,447 households of which 40.1% had children under the age of 18 living with them, 61.3% were married couples living together, 8.1% had a female householder with no husband present, 4.1% had a male householder with no wife present, and 26.5% were non-families. 20.7% of all households were made up of individuals and 6.7% had someone living alone who was 65 years of age or older. The average household size was 2.69 and the average family size was 3.14.
The median age in the city was 37.8 years. 28.6% of residents were under the age of 18; 5.9% were between the ages of 18 and 24; 28.9% were from 25 to 44; 27.4% were from 45 to 64; and 9.3% were 65 years of age or older. The gender makeup of the city was 49.7% male and 50.3% female.