Waseca is a city in Waseca County, Minnesota, United States. The population was 9,410 at the 2010 census. It is the county seat.
According to the United States Census Bureau, the city has a total area of 5.19 square miles (13.44 km); 4.00 square miles (10.36 km) is land and 1.19 square miles (3.08 km) is water.
As of the census of 2010, there were 9,410 people, 3,504 households, and 2,150 families residing in the city. The population density was 2,352.5 inhabitants per square mile (908.3/km). There were 3,818 housing units at an average density of 954.5 per square mile (368.5/km). The racial makeup of the city was 89.0% White, 3.7% African American, 1.5% Native American, 1.0% Asian, 2.3% from other races, and 2.5% from two or more races. Hispanic or Latino of any race were 9.0% of the population.
There were 3,504 households of which 30.9% had children under the age of 18 living with them, 44.7% were married couples living together, 11.7% had a female householder with no husband present, 5.0% had a male householder with no wife present, and 38.6% were non-families. 32.9% of all households were made up of individuals and 13.8% 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 2.95.
The median age in the city was 36.5 years. 22.5% of residents were under the age of 18; 8.3% were between the ages of 18 and 24; 30.1% were from 25 to 44; 25.5% were from 45 to 64; and 13.4% were 65 years of age or older. The gender makeup of the city was 42.6% male and 57.4% female.
As of the 2000 census, there were 8,493 people, 3,388 households, and 2,219 families residing in the city. The population density was 2,215.6 people per square mile (856.2/km²). There were 3,563 housing units at an average density of 929.5 per square mile (359.2/km²). The racial makeup of the city was 94.24% White, 1.39% African American, 0.35% Native American, 0.58% Asian, 0.05% Pacific Islander, 2.50% from other races, and 0.89% from two or more races. Hispanic or Latino of any race were 5.10% of the population.
The ancestral makeup of the city is 44.6% German, 21.3% Norwegian, 13.2% Irish, 5.2% English, 5.1% Swedish, and 4.6% French.
There were 3,388 households out of which 34.0% had children under the age of 18 living with them, 50.6% were married couples living together, 10.8% had a female householder with no husband present, and 34.5% were non-families. 29.3% of all households were made up of individuals and 11.8% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 3.02.
In the city, the population was spread out with 27.0% under the age of 18, 9.4% from 18 to 24, 28.7% from 25 to 44, 19.4% from 45 to 64, and 15.6% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 92.6 males. For every 100 females age 18 and over, there were 88.1 males.
The median income for a household in the city was $39,554, and the median income for a family was $49,163. Males had a median income of $35,701 versus $22,837 for females. The per capita income for the city was $18,439. About 6.5% of families and 8.4% of the population were below the poverty line, including 12.5% of those under age 18 and 5.9% of those age 65 or over.