Map of Lyon County, Minnesota

Lyon County is a county in the U.S. state of Minnesota. As of the 2020 census, the population was 25,269. Its county seat is Marshall.

Lyon County comprises the Marshall, MN Micropolitan Statistical Area.

Lyon County overview:
Name:	Lyon County
FIPS code:	27-083
State:	Minnesota
Founded:	March 6, 1868 March 2, 1869
Named for:	Nathaniel Lyon
Seat:	Marshall
Largest city:	Marshall
Total Area:	722 sq mi (1,870 km²)
Land Area:	715 sq mi (1,850 km²)
Total Population:	25,269
Population Density:	35.3/sq mi (13.6/km²)
Time zone:	UTC−6 (Central)
Summer Time Zone (DST):	UTC−5 (CDT)
Website:	www.lyonco.org

Lyon County location map. Where is Lyon County?

Lyon County location on the U.S. Map. Where is Lyon County. — Location of Lyon County in the the United States.

Lyon County location on the Minnesota map. Where is Lyon County. — Location of Lyon County in Minnesota.

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.

Lyon County Road Map

Lyon CountyStreet Map. — Street map of Lyon County, Minnesota. Source: OpenStreetMap (OSM)

Lyon CountyMap — Lyon Countypolitical map.

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 722 square miles (1,870 km), of which 715 square miles (1,850 km) is land and 7.1 square miles (18 km) (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

U.S. Highway 14
U.S. Highway 59
Minnesota State Highway 19
Minnesota State Highway 23
Minnesota State Highway 68
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