Blue Earth is a city located in Faribault County Minnesota. It is also the county seat of Faribault County. With a 2020 population of 3,070, it is the 207th largest city in Minnesota and the 6182nd largest city in the United States . Blue Earth is currently declining at a rate of -0.62% annually and its population has decreased by -8.44% since the most recent census, which recorded a population of 3,353 in 2010. Blue Earth reached it's highest population of 4,200 in 1960. Spanning over 3 miles, Blue Earth has a population density of 968 people per square mile.
The average household income in Blue Earth is $54,185 with a poverty rate of 11.44%. The median rental costs in recent years comes to $562 per month, and the median house value is $82,700. The median age in Blue Earth is 51.3 years, 43.6 years for males, and 57.1 years for females.