St. Francis is a city in Anoka and Isanti counties, Minnesota, United States. The population was 7,218 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 23.97 square miles (62.08 km), of which, 23.53 square miles (60.94 km) is land and 0.44 square miles (1.14 km) is water. St. Francis is located in the northwest part of Anoka County.
Nearby places include Bethel, East Bethel, Oak Grove, Nowthen, Elk River, Zimmerman, Crown, and Isanti.
St. Francis is located 16 miles north of the city of Anoka. Lake George is nearby. St. Francis lies just North of the Twin Cities Metro area.
As of 2000 the median income for a household in the city was $51,982, and the median income for a family was $52,193. Males had a median income of $40,585 versus $28,112 for females. The per capita income for the city was $19,957. About 3.0% of families and 4.8% of the population were below the poverty line, including 4.4% of those under age 18 and 5.0% of those age 65 or over.
As of the census of 2010, there were 7,218 people, 2,520 households, and 1,913 families residing in the city. The population density was 306.8 inhabitants per square mile (118.5/km). There were 2,650 housing units at an average density of 112.6 per square mile (43.5/km). The racial makeup of the city was 95.9% White, 0.6% African American, 0.4% Native American, 0.8% Asian, 0.2% from other races, and 2.0% from two or more races. Hispanic or Latino of any race were 1.4% of the population.
There were 2,520 households of which 46.7% had children under the age of 18 living with them, 55.6% were married couples living together, 13.8% had a female householder with no husband present, 6.5% had a male householder with no wife present, and 24.1% were non-families. 17.8% of all households were made up of individuals and 4% had someone living alone who was 65 years of age or older. The average household size was 2.86 and the average family size was 3.22.
The median age in the city was 31.5 years. 31.7% of residents were under the age of 18; 8.1% were between the ages of 18 and 24; 32.8% were from 25 to 44; 20.8% were from 45 to 64; and 6.5% were 65 years of age or older. The gender makeup of the city was 49.5% male and 50.5% female.