Lyon County is a county in the U.S. state of Minnesota. As of the 2020 United States Census, the population was 25,269. Its county seat is Marshall.
Lyon County comprises the Marshall, MN Micropolitan Statistical Area.
History
The county was established by two acts of the Minnesota state legislature, dated March 6, 1868, and March 2, 1869. The county seat was designated as Marshall. The county was named for Nathaniel Lyon, an Army officer who served in the Dakota and Minnesota territories before being killed in the Civil War in 1861. He had achieved the rank of general by his death. The county was much larger until an act passed on March 6, 1873, made the western 43% the new Lincoln County.
Geography
The Yellow Medicine River flows northeast through the upper portion of the county, the Redwood River flows northeast through the central part, and the Cottonwood River flows northeast through the lower part. The county's terrain consists of low rolling hills, etched by drainages and gullies. It slopes to the north and east, with its highest point near its southwest corner, at 1,729' (527m) ASL. The county has a total area of , of which is land and (1.0%) is water.
Lakes
Clear Lake
Cottonwood Lake
Dead Coon Lake
East Twin Lake
Goose Lake
Island Lake
Lady Slipper Lake
Lake Marshall
Lake of the Hill
Lake Yankton
Lone Tree Lake (part)
Long Lake (part)
McKay Lake
North Twin Lake
Rock Lake
School Grove Lake (part)
Sham Lake
South Twin Lake
Swift Lake
West Twin Lake
Wood Lake
Major highways
20px U.S. Highway 14
20px U.S. Highway 59
20px Minnesota State Highway 19
20px Minnesota State Highway 23
20px Minnesota State Highway 68
20px Minnesota State Highway 91
Airports
Southwest Minnesota Regional Airport (MML)
Tracy Municipal Airport (TKC)
Adjacent counties
Yellow Medicine County - north
Redwood County - east
Murray County - south
Pipestone County - southwest
Lincoln County - west
Protected areas
Camden State Park
Gadwall State Wildlife Management Area
Garvin State Park
Grandview State Wildlife Management Area
Greenhead State Wildlife Management Area
Glynn Prairie Scientific and Natural Area
Shelburne State Wildlife Management Area
Vallers State Wildlife Management Area
Demographics
2000 census
As of the 2000 United States Census, there were 25,425 people, 9,715 households, and 6,334 families in the county. The population density was 35.6/sqmi (13.7/km2). There were 10,298 housing units at an average density of 14.4/sqmi (5.56/km2). The racial makeup of the county was 93.58% White, 1.49% Black or African American, 0.31% Native American, 1.67% Asian, 0.02% Pacific Islander, 1.89% from other races, and 1.04% from two or more races. 3.97% of the population were Hispanic or Latino of any race. 33.9% were of German, 15.5% Norwegian and 10.5% Belgian ancestry.
There were 9,715 households, out of which 33.00% had children under the age of 18 living with them, 55.10% were married couples living together, 7.10% had a female householder with no husband present, and 34.80% were non-families. 27.90% of all households were made up of individuals, and 12.40% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 3.09.
The county population contained 26.20% under the age of 18, 13.30% from 18 to 24, 26.50% from 25 to 44, 19.50% from 45 to 64, and 14.60% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 95.70 males. For every 100 females age 18 and over, there were 93.20 males.
The median income for a household in the county was $38,996, and the median income for a family was $48,512. Males had a median income of $32,102 versus $21,445 for females. The per capita income for the county was $18,013. About 6.30% of families and 10.10% of the population were below the poverty line, including 10.00% of those under age 18 and 12.70% of those age 65 or over.
Communities
Cities
Balaton
Cottonwood
Florence
Garvin
Ghent
Lynd
Marshall (county seat)
Minneota
Russell
Taunton
Tracy
Unincorporated communities
Amiret
Burchard
Dudley
Green Valley
Townships
Amiret Township
Clifton Township
Coon Creek Township
Custer Township
Eidsvold Township
Fairview Township
Grandview Township
Island Lake Township
Lake Marshall Township
Lucas Township
Lynd Township
Lyons Township
Monroe Township
Nordland Township
Rock Lake Township
Shelburne Township
Sodus Township
Stanley Township
Vallers Township
Westerheim Township
Politics
Lyon County has been a traditional Republican stronghold. In only one national election since 1980 has the county selected the Democratic Party candidate (as of 2020).