Blue Earth is a city in Faribault County, Minnesota, at the confluence of the east and west branches of the Blue Earth River. The population was 3,353 at the 2010 census. It is the county seat of Faribault County. It is home to a statue of the Jolly Green Giant. Additionally, Interstate Highway 90 is centered on Blue Earth, as the east and west construction teams met here in 1978. As a tribute, there is a golden stripe of concrete on the interstate near Blue Earth. This draws a parallel to the golden spike set in the first transcontinental railroad.
According to the United States Census Bureau, the city has a total area of 3.36 square miles (8.70 km), of which 3.27 square miles (8.47 km) is land and 0.09 square miles (0.23 km) is water.
Interstate Highway 90 and U.S. Highway 169 are two of the main routes in the city.
As of the census of 2010, there were 3,353 people, 1,453 households, and 888 families residing in the city. The population density was 1,025.4 inhabitants per square mile (395.9/km). There were 1,638 housing units at an average density of 500.9 per square mile (193.4/km). The racial makeup of the city was 96.0% White, 0.1% African American, 0.6% Native American, 0.2% Asian, 2.1% from other races, and 0.9% from two or more races. Hispanic or Latino of any race were 6.9% of the population.
There were 1,453 households of which 25.7% had children under the age of 18 living with them, 48.0% were married couples living together, 9.9% had a female householder with no husband present, 3.2% had a male householder with no wife present, and 38.9% were non-families. 35.5% of all households were made up of individuals and 20% had someone living alone who was 65 years of age or older. The average household size was 2.19 and the average family size was 2.81.
The median age in the city was 46.4 years. 21.4% of residents were under the age of 18; 6.9% were between the ages of 18 and 24; 20.4% were from 25 to 44; 26.7% were from 45 to 64; and 24.7% were 65 years of age or older. The gender makeup of the city was 46.8% male and 53.2% female.
As of the census of 2000, there were 3,621 people, 1,535 households, and 925 families residing in the city. The population density was 1,137.0 people per square mile (439.6/km²). There were 1,666 housing units at an average density of 523.1 per square mile (202.3/km²). The racial makeup of the city was 96.85% White, 0.17% African American, 0.06% Native American, 0.33% Asian, 0.19% Pacific Islander, 1.60% from other races, and 0.80% from two or more races. Hispanic or Latino of any race were 4.14% of the population.
There were 1,535 households out of which 27.6% had children under the age of 18 living with them, 49.8% were married couples living together, 7.9% had a female householder with no husband present, and 39.7% were non-families. 36.3% of all households were made up of individuals and 20.7% had someone living alone who was 65 years of age or older. The average household size was 2.23 and the average family size was 2.92.
In the city, the population was spread out with 23.1% under the age of 18, 6.5% from 18 to 24, 21.9% from 25 to 44, 22.7% from 45 to 64, and 25.8% who were 65 years of age or older. The median age was 44 years. For every 100 females, there were 84.3 males. For every 100 females age 18 and over, there were 78.4 males.
The median income for a household in the city was $34,940, and the median income for a family was $42,377. Males had a median income of $29,359 versus $20,168 for females. The per capita income for the city was $18,037. About 4.3% of families and 8.0% of the population were below the poverty line, including 9.1% of those under age 18 and 10.1% of those age 65 or over.