Mahtomedi (/mɑːtoʊˈmiːdaɪ/ mah-toh-MEE-dy) is a city in Washington County, Minnesota, United States. The population was 7,676 at the 2010 census. Mahtomedi is considered to be a suburb of St. Paul, and is located between St. Paul and Stillwater.
Mahtomedi is about 15 miles northeast of St. Paul, the capital of Minnesota. According to the United States Census Bureau, the city has a total area of 5.75 square miles (14.89 km). 3.49 square miles (9.04 km) of it is land and 2.27 square miles (5.88 km) is water, part of which is White Bear Lake. Interstate 694 and Mahtomedi Avenue are two of the main routes in the community.
As of 2000 the median income for a household in the city was $72,215, and the median income for a family was $81,923. Males had a median income of $52,656 versus $36,306 for females. The per capita income for the city was $28,930. About 1.6% of families and 2.7% of the population were below the poverty line, including 2.8% of those under age 18 and 5.8% of those age 65 or over.
As of the census of 2010, there were 7,676 people, 2,827 households, and 2,126 families residing in the city. The population density was 2,199.4 inhabitants per square mile (849.2/km). There were 2,910 housing units at an average density of 833.8 per square mile (321.9/km). The racial makeup of the city was 94.2% White, 2.3% African American, 0.2% Native American, 1.2% Asian, 0.1% Pacific Islander, 0.3% from other races, and 1.7% from two or more races. Hispanic or Latino of any race were 1.3% of the population.
There were 2,827 households of which 38.8% had children under the age of 18 living with them, 62.4% were married couples living together, 9.5% had a female householder with no husband present, 3.3% had a male householder with no wife present, and 24.8% were non-families. 21.6% of all households were made up of individuals and 10.7% had someone living alone who was 65 years of age or older. The average household size was 2.65 and the average family size was 3.11.
The median age in the city was 44.2 years. 27.1% of residents were under the age of 18; 6.4% were between the ages of 18 and 24; 17.9% were from 25 to 44; 35.3% were from 45 to 64; and 13.3% were 65 years of age or older. The gender makeup of the city was 48.4% male and 51.6% female.