Marshall County, South Dakota

Geography

According to the U.S. Census Bureau, the county has a total area of 886 square miles (2,290 km²), of which 838 square miles (2,170 km²) is land and 48 square miles (120 km²) (5.4%) is water.

Major Highways

Adjacent Counties

2000 census

As of the census of 2000, there were 4,576 people, 1,844 households, and 1,252 families residing in the county. The population density was 6 people per square mile (2/km²). There were 2,562 housing units at an average density of 3 per square mile (1/km²). The racial makeup of the county was 92.59% White, 0.09% Black or African American, 6.32% Native American, 0.09% Asian, 0.22% from other races, and 0.70% from two or more races. 0.76% of the population were Hispanic or Latino of any race.

There were 1,844 households out of which 29.80% had children under the age of 18 living with them, 57.20% were married couples living together, 6.50% had a female householder with no husband present, and 32.10% were non-families. 30.10% of all households were made up of individuals and 16.10% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 3.04.

In the county, the population was spread out with 27.00% under the age of 18, 5.10% from 18 to 24, 22.80% from 25 to 44, 23.80% from 45 to 64, and 21.30% who were 65 years of age or older. The median age was 42 years. For every 100 females there were 100.00 males. For every 100 females age 18 and over, there were 96.80 males.

The median income for a household in the county was $30,567, and the median income for a family was $36,295. Males had a median income of $27,241 versus $17,872 for females. The per capita income for the county was $15,462. About 10.40% of families and 13.90% of the population were below the poverty line, including 19.00% of those under age 18 and 14.00% of those age 65 or over.

2010 census

As of the 2010 United States Census, there were 4,656 people, 1,815 households, and 1,154 families residing in the county. The population density was 5.6 inhabitants per square mile (2.2/km²). There were 2,534 housing units at an average density of 3.0 per square mile (1.2/km²). The racial makeup of the county was 85.4% white, 7.6% American Indian, 0.2% black or African American, 0.2% Asian, 5.6% from other races, and 1.1% from two or more races. Those of Hispanic or Latino origin made up 6.8% of the population. In terms of ancestry, 45.6% were German, 30.6% were Norwegian, 6.8% were Swedish, 5.8% were Irish, 5.2% were English, and 2.7% were American.

Of the 1,815 households, 24.4% had children under the age of 18 living with them, 52.8% were married couples living together, 6.0% had a female householder with no husband present, 36.4% were non-families, and 31.4% of all households were made up of individuals. The average household size was 2.36 and the average family size was 2.83. The median age was 43.2 years.

The median income for a household in the county was $41,023 and the median income for a family was $56,544. Males had a median income of $31,639 versus $26,737 for females. The per capita income for the county was $22,441. About 9.3% of families and 17.1% of the population were below the poverty line, including 27.6% of those under age 18 and 12.8% of those age 65 or over.

Cities

Towns

Census-designated place

Unincorporated communities

Townships

The county is divided into twenty-five townships: