McCook County, SD Demographics

Population 5,751 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
McCook County, SD map of median age by neighborhood
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Population and households in McCook County

Household size in McCook County

Household size, people per household
PeriodMcCook CountySouth DakotaU.S.
2006–102.552.512.68
2010–142.452.512.73
2015–192.382.502.71
2020–242.512.482.65
Change−0.04−0.03−0.03
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Households in McCook County run a little small, averaging 2.51 people against 2.65 nationally, which usually means more singles and couples and fewer children. Household size has edged down from 2.55 in 2006–10, as it has nationally. The biggest households, usually families with children, are concentrated in the east.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in McCook County

Median age, years
PeriodMcCook CountySouth DakotaU.S.
2006–1042.337.937.7
2010–1442.938.338.6
2015–1940.338.839.6
2020–2439.438.940.1
Change−2.9+1.0+2.3
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Half of the people in McCook County are younger than 39.4 and half are older, close to the national median of 40.1. The median age has dropped from 42.3 in 2006–10, even as the national median rose. Residents skew youngest in the east and oldest in the northwest.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in McCook County

Single-parent households, % of households
PeriodMcCook CountySouth DakotaU.S.
2006–107.2%10.8%12.3%
2010–146.9%11.1%12.3%
2015–196.7%10.9%11.6%
2020–246.4%10.7%11.6%
Change−0.7 pts−0.1 pts−0.6 pts
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Single-parent households are relatively rare in McCook County: 6.4% of households, against 11.6% nationally. The single-parent share has edged down 0.7 points since 2006–10, in line with the national trend.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in McCook County

Renters in McCook County

Renters, % of occupied homes
PeriodMcCook CountySouth DakotaU.S.
2006–1020.0%31.1%33.3%
2010–1419.6%32.0%35.6%
2015–1924.1%32.0%36.0%
2020–2420.5%31.4%34.8%
Change+0.5 pts+0.3 pts+1.5 pts
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Only 20.5% of households in McCook County rent their homes, far below the national share of 34.8%, so most residents are owners who tend to stay put. Nearly half of owners (46.8%) have paid off their mortgages, above the national share of 39.8%.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in McCook County

Vacant homes, % of all homes
PeriodMcCook CountySouth DakotaU.S.
2006–1012.9%11.3%11.4%
2010–1411.2%10.7%11.4%
2015–1911.5%11.6%11.1%
2020–2411.5%10.3%9.6%
Change−1.4 pts−1.1 pts−1.8 pts
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A few more homes sit empty in McCook County than nationally: 11.5%, against 9.6%. The count includes vacation homes and homes between owners or tenants, not just abandoned ones. Vacancy has edged down 1.4 points since 2006–10, mirroring the country.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in McCook County

Age of homes, median year built
PeriodMcCook CountySouth DakotaU.S.
2006–10195619721974
2010–14195619741975
2015–19196419771977
2020–24196819811980
Change+11+9+6
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The housing in McCook County is old by national standards: the median home dates to 1968, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The median year built has moved up from 1956 in 2006–10, a sign of steady new building.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in McCook County

Rent, per month
PeriodMcCook CountySouth DakotaU.S.
2006–10$551$631$965
2010–14$621$692$1,040
2015–19$613$798$1,213
2020–24$1,021$1,000$1,571
Change+$470+$369+$606
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The median renter in McCook County pays $1,021 a month for rent and utilities, well below the national median of $1,571. Rent has climbed $470 a month since 2006–10, up 85%, faster than rents rose nationally. Rent takes 23.3% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent. Rents run highest in the southeast and lowest in the southwest.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in McCook County

Bachelor's degrees in McCook County

Bachelor's degrees, % of adults 25+
PeriodMcCook CountySouth DakotaU.S.
2006–1020.5%26.8%28.4%
2010–1422.7%27.8%29.6%
2015–1924.3%29.4%32.1%
2020–2430.3%32.5%35.6%
Change+9.8 pts+5.6 pts+7.2 pts
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About three in ten adults 25 and older in McCook County (30.3%) have a bachelor's degree or higher, a little below the national share of 35.6%. The picture is much the same across South Dakota. The share with a degree has risen 9.8 points since 2006–10, as it has nationally.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in McCook County

High school graduates, % of adults 25+
PeriodMcCook CountySouth DakotaU.S.
2006–1090.2%89.9%84.9%
2010–1491.1%91.0%86.1%
2015–1988.8%91.8%87.7%
2020–2494.5%93.1%89.3%
Change+4.3 pts+3.2 pts+4.3 pts
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High school completion is high in McCook County: 94.5% of adults 25 and older have a diploma or equivalent, well above the national rate of 89.3%. That is in line with the rest of South Dakota. The share with a diploma is up 4.3 points from 2006–10, as it has nationally.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in McCook County

Unemployment, % of the labor force
PeriodMcCook CountySouth DakotaU.S.
2006–102.9%4.9%8.1%
2010–142.2%4.9%9.4%
2015–192.9%3.6%5.6%
2020–241.9%3.1%5.4%
Change−1.0 pts−1.7 pts−2.7 pts
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The job market in McCook County has been strong: just 1.9% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment has edged down 1.0 points since 2006–10, mirroring the country. Each figure pools five years of surveys (2020–24), so it describes that whole stretch rather than today's job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

McCook County compared with nearby counties

CountyHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
McCook County2.5139.46.4%20.5%11.5%1968$1,02130.3%94.5%1.9%
Hanson County3.0237.84.2%10.6%12.1%1959$84822.7%93.3%1.8%
Minnehaha County2.4037.011.2%36.9%6.0%1986$1,06835.5%92.7%2.3%
Davison County2.2241.710.0%38.5%9.2%1971$83622.3%91.0%0.9%
Rock County2.3541.86.9%23.4%5.8%1959$83926.5%93.2%2.6%
Aurora County2.4141.28.3%27.3%15.4%1962$77221.7%92.0%1.2%
Nobles County2.8036.815.1%25.8%9.1%1966$91016.7%79.4%3.2%
Brule County2.5841.810.0%23.6%15.6%1969$90229.2%90.8%1.7%
Jackson County2.2745.57.8%19.9%10.6%1959$84226.4%95.0%2.6%
Martin County2.2443.710.0%31.1%9.1%1959$86423.6%95.1%4.1%
Faribault County2.2744.610.3%20.8%12.3%1951$84521.8%91.6%3.4%

All figures 2020–24.

Counties with similar populations: Page County, IA · Massac County, IL · Mathews County, VA · Maunabo Municipio, PR · McCone County, MT · McCormick County, SC · McCulloch County, TX · McHenry County, ND · McIntosh County, GA · McIntosh County, ND

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up McCook County. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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