2010 census

As of the census of 2010, there were 3,792 people, 1,315 households, and 1,025 families living in the city. The population density was 1,780.3 inhabitants per square mile (687.4/km²). There were 1,363 housing units at an average density of 639.9 per square mile (247.1/km²). The racial makeup of the city was 94.3% White, 0.3% African American, 0.4% Native American, 2.7% Asian, 0.4% from other races, and 1.8% from two or more races. Hispanic or Latino of any race were 1.6% of the population.

There were 1,315 households, of which 46.6% had children under the age of 18 living with them, 67.8% were married couples living together, 5.9% had a female householder with no husband present, 4.3% had a male householder with no wife present, and 22.1% were non-families. 17.6% of all households were made up of individuals, and 5.6% had someone living alone who was 65 years of age or older. The average household size was 2.88 and the average family size was 3.28.

The median age in the city was 35.8 years. 30.8% of residents were under the age of 18; 6% were between the ages of 18 and 24; 29.9% were from 25 to 44; 25.9% were from 45 to 64; and 7.4% were 65 years of age or older. The gender makeup of the city was 50.8% male and 49.2% female.

2000 census

As of the census of 2000, there were 3,206 people, 1,078 households, and 879 families living in the city. The population density was 1,486.5 inhabitants per square mile (573.9/km²). There were 1,094 housing units at an average density of 507.9 per square mile (196.1/km²) The racial makeup of the city was 96.72% White, 0.25% African American, 0.44% Native American, 0.72% Asian, 0.37% from other races, and 1.50% from two or more races. Hispanic or Latino of any race were 1.44% of the population.

There were 1,078 households, out of which 50.3% had children under the age of 18 living with them, 72.8% were married couples living together, 5.9% had a female householder with no husband present, and 18.4% were non-families. 13.6% of all households were made up of individuals, and 1.8% had someone living alone who was 65 years of age or older. The average household size was 2.97 and the average family size was 3.28.

In the city, the population was spread out, with 33.6% under the age of 18, 5.1% from 18 to 24, 42.8% from 25 to 44, 15.2% from 45 to 64, and 3.3% who were 65 years of age or older. The median age was 31 years. For every 100 females, there were 105.9 males. For every 100 females age 18 and over, there were 104.3 males.

The median income for a household in the city was $63,696, and the median income for a family was $67,336. Males had a median income of $42,371 versus $31,474 for females. The per capita income for the city was $23,113. About 0.6% of families and 2.4% of the population were below the poverty line, including 0.7% of those under age 18 and none of those age 65 or over.