2010 census

As of the census^[10] of 2010, there were 4,083 people, 1,708 households, and 1,061 families living in the city. The population density was 938.6 inhabitants per square mile (362.4/km²). There were 1,869 housing units at an average density of 429.7 per square mile (165.9/km²). The racial makeup of the city was 94.3% White, 2.4% African American, 0.5% Native American, 0.5% Asian, 0.8% from other races, and 1.5% from two or more races. Hispanic or Latino of any race were 2.2% of the population.

There were 1,708 households, of which 31.9% had children under the age of 18 living with them, 48.2% were married couples living together, 10.2% had a female householder with no husband present, 3.7% had a male householder with no wife present, and 37.9% were non-families. Of all households, 32.1% were made up of individuals, and 15% had someone living alone who was 65 years of age or older. The average household size was 2.33 and the average family size was 2.96.

The median age in the city was 40 years. 23.9% of residents were under the age of 18; 7.4% were between the ages of 18 and 24; 25.3% were from 25 to 44; 26.5% were from 45 to 64; and 17% were 65 years of age or older. The gender makeup of the city was 48.3% male and 51.7% female.

2000 census

As of the census^[3] of 2000, there were 3,795 people, 1,550 households, and 996 families living in the city. The population density was 946.4 inhabitants per square mile (365.4/km²). There were 1,611 housing units at an average density of 401.8 per square mile (155.1/km²). The racial makeup of the city was 98.18% White, 0.18% African American, 0.29% Native American, 0.66% Asian, 0.42% from other races, and 0.26% from two or more races. Hispanic or Latino of any race were 1.08% of the population.

There were 1,550 households, out of which 32.6% had children under the age of 18 living with them, 51.4% were married couples living together, 9.7% had a female householder with no husband present, and 35.7% were non-families. Of all households, 31.2% were made up of individuals, and 14.8% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 3.03.

In the city, the population was spread out, with 26.5% under the age of 18, 7.6% from 18 to 24, 29.2% from 25 to 44, 19.5% from 45 to 64, and 17.2% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 94.3 males. For every 100 females age 18 and over, there were 89.9 males.

The median income for a household in the city was $40,721, and the median income for a family was $53,903. Males had a median income of $37,095 versus $24,906 for females. The per capita income for the city was $20,820. About 3.5% of families and 5.6% of the population were below the poverty line, including 5.7% of those under age 18 and 8.7% of those age 65 or over.

High and middle schools

The high school and middle school share a site. Enrollment in grades 6 through 12 was 750 students as of the 2017/2018 school year. As of 2023 the principal is Tim Hodges, and the district superintendent is Jeff Sampson.^[15]

Supported sports teams

Elementary school

Grades K–5 have an enrollment total of 607 students. The current principal as of 2023 is Jennifer Chappuis.^[15] While the high school has the name Bombers as their mascot, the elementary school has adopted the name Trailblazers, due to criticisms of the old name's violent connotations.^{[citation needed]}

Private schools

St. Paul's Lutheran School is a Christian pre-school and K–8 school of the Wisconsin Evangelical Lutheran Synod (WELS) in Cannon Falls.^[16]