North Oaks is a suburb 10 miles (16 km) north of Saint Paul in Ramsey County in the U.S. state of Minnesota. The population was 4,469 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 8.63 square miles (22.35 km), of which 6.92 square miles (17.92 km) is land and 1.71 square miles (4.43 km) is water.
As of the census of 2010, there were 4,469 people, 1,746 households, and 1,378 families residing in the city. The population density was 645.8 inhabitants per square mile (249.3/km). There were 1,868 housing units at an average density of 269.9 per square mile (104.2/km). The racial makeup of the city was 93.0% White, 0.4% African American, 0.2% Native American, 5.2% Asian, 0.1% from other races, and 1.1% from two or more races. Hispanic or Latino of any race were 1.2% of the population.
There were 1,746 households of which 27.5% had children under the age of 18 living with them, 74.3% were married couples living together, 3.1% had a female householder with no husband present, 1.5% had a male householder with no wife present, and 21.1% were non-families. 18.9% of all households were made up of individuals and 14% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 2.84.
The median age in the city was 53.1 years. 20.9% of residents were under the age of 18; 4.1% were between the ages of 18 and 24; 11.7% were from 25 to 44; 37.7% were from 45 to 64; and 25.6% were 65 years of age or older. The gender makeup of the city was 48.2% male and 51.8% female.
As of the census of 2000, there were 3,883 people, 1,300 households, and 1,177 families residing in the city. The population density was 531.0 people per square mile (205.1/km²). There were 1,332 housing units at an average density of 182.1 per square mile (70.4/km²). The racial makeup of the city was 93.33% White, 0.31% African American, 0.15% Native American, 4.61% Asian, 0.03% Pacific Islander, 0.57% from other races, and 1.00% from two or more races. Hispanic or Latino of any race were 1.21% of the population.
There were 1,300 households out of which 41.5% had children under the age of 18 living with them, 86.5% were married couples living together, 2.6% had a female householder with no husband present, and 9.4% were non-families. 7.6% of all households were made up of individuals and 3.2% had someone living alone who was 65 years of age or older. The average household size was 2.92 and the average family size was 3.08.
In the city, the population was spread out with 27.6% under the age of 18, 4.7% from 18 to 24, 17.6% from 25 to 44, 38.5% from 45 to 64, and 11.6% who were 65 years of age or older. The median age was 45 years. For every 100 females, there were 99.2 males. For every 100 females age 18 and over, there were 96.0 males.
The median income for a household in the city was $149,158, and the median income for a family was $152,380. Males had a median income of $100,000 versus $47,019 for females. The per capita income for the city was $72,686. None of the families and 1.9% of the population were living below the poverty line, including no under-eighteens and 9.6% of those over 64. North Oaks is listed among the highest-income places in the United States.