Olmsted County, Minnesota facts for kids

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Olmsted County, Minnesota
Seal of Olmsted County, Minnesota
Map
Map of Minnesota highlighting Olmsted County
Location in the state of Minnesota
Map of the USA highlighting Minnesota
Minnesota's location in the U.S.
Statistics
Founded February 20, 1855
Seat Rochester
Largest City Rochester
Area
 - Total
 - Land
 - Water

655 sq mi (1,696 km²)
653 sq mi (1,691 km²)
1.5 sq mi (4 km²), 0.2%
PopulationEst.
 - (2016)
 - Density

153,102
221/sq mi (85/km²)
Time zone Central: UTC-6/-5
Website: www.co.olmsted.mn.us
Named for: David Olmsted

Olmsted County is a county located in the U.S. state of Minnesota. As of the 2010 census, the population was 144,248. Its county seat and largest city is Rochester. The county was founded in 1855 and named for David Olmsted, a member of the first territorial council and the first mayor of St. Paul.

Olmsted County is part of the Rochester, MN Metropolitan Statistical Area.

Geography

According to the U.S. Census Bureau, the county has a total area of 655 square miles (1,700 km2), of which 653 square miles (1,690 km2) is land and 1.5 square miles (3.9 km2) (0.2%) is water.

Native vegetation based on NRCS soils information

It is one of four counties in Minnesota that does not have any natural lakes (the other three being Mower, Pipestone, and Rock).

Lakes

Though Olmsted County does not have any natural lakes, it does have six reservoirs created by dams.

  • Chester Lake: Eyota Township
  • Lake Florence: High Forest Township
  • Lake George: Rochester Township
  • Mayowood Lake: Rochester Township
  • Silver Lake: Haverhill Township and Cascade Township
  • Lake Zumbro (partially): Oronoco Township

Major highways

  • I-90.svg Interstate 90
  • US 14.svg U.S. Highway 14
  • US 52.svg U.S. Highway 52
  • US 63.svg U.S. Highway 63
  • MN-30.svg Minnesota State Highway 30
  • MN-42.svg Minnesota State Highway 42
  • MN-74.svg Minnesota State Highway 74
  • MN-247.svg Minnesota State Highway 247
  • Olmsted County Route 22.svg Olmsted County Highway 22

Adjacent counties

Demographics

USA Olmsted County, Minnesota age pyramid
Age pyramid of county residents based on 2000 U.S. census data
Historical population
Census Pop.
1860 9,524
1870 19,793 107.8%
1880 21,543 8.8%
1890 19,806 −8.1%
1900 23,119 16.7%
1910 22,497 −2.7%
1920 28,014 24.5%
1930 35,426 26.5%
1940 42,658 20.4%
1950 48,228 13.1%
1960 65,532 35.9%
1970 84,104 28.3%
1980 92,006 9.4%
1990 106,470 15.7%
2000 124,277 16.7%
2010 144,248 16.1%
Est. 2015 151,436 5.0%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2015

As of the census of 2000, there were 124,277 people, 47,807 households, and 32,317 families residing in the county. The population density was 190 people per square mile (73/km²). There were 49,422 housing units at an average density of 76 per square mile (29/km²). The racial makeup of the county was 90.33% White, 2.68% Black or African American, 0.26% Native American, 4.27% Asian, 0.03% Pacific Islander, 0.92% from other races, and 1.51% from two or more races. 2.38% of the population were Hispanic or Latino of any race. The ancestral makeup of the county was 33.7% German, 16.1% Norwegian, 8.0% Irish and 5.2% English.

There were 47,807 households out of which 35.20% had children under the age of 18 living with them, 56.70% were married couples living together, 8.00% had a female householder with no husband present, and 32.40% were non-families. 25.80% of all households were made up of individuals and 7.60% had someone living alone who was 65 years of age or older. The average household size was 2.53 and the average family size was 3.09.

In the county, the population was spread out with 27.00% under the age of 18, 8.50% from 18 to 24, 32.20% from 25 to 44, 21.60% from 45 to 64, and 10.80% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 96.60 males. For every 100 females age 18 and over, there were 93.60 males.

The median income for a household in the county was $51,316, and the median income for a family was $61,610. Males had a median income of $40,196 versus $29,994 for females. The per capita income for the county was $24,939. About 3.80% of families and 6.40% of the population were below the poverty line, including 6.70% of those under age 18 and 9.50% of those age 65 or over.

Communities

HellecksonHomestead
The Helleckson Homestead, built about 1850, preserved in Olmsted County Oxbow Park

Cities

Townships

  • Cascade Township
  • Dover Township
  • Elmira Township
  • Eyota Township
  • Farmington Township
  • Haverhill Township
  • High Forest Township
  • Kalmar Township
  • Marion Township
  • New Haven Township
  • Orion Township
  • Oronoco Township
  • Pleasant Grove Township
  • Quincy Township
  • Rochester Township
  • Rock Dell Township
  • Salem Township
  • Viola Township

Unincorporated communities


Olmsted County, Minnesota Facts for Kids. Kiddle Encyclopedia.