Stanley County, SD Demographics

Population 3,015 · Census ACS 2020–24

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

Household size in Stanley County

Household size, people per household
PeriodStanley CountySouth DakotaU.S.
2006–102.512.512.68
2010–142.402.512.73
2015–192.282.502.71
2020–242.352.482.65
Change−0.15−0.03−0.03
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Stanley County is a place of small households, averaging 2.35 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Since 2006–10, household size has dropped from 2.51, but in a place this small, survey estimates can swing a lot from one release to the next.

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 Stanley County

Median age, years
PeriodStanley CountySouth DakotaU.S.
2006–1042.037.937.7
2010–1440.638.338.6
2015–1943.638.839.6
2020–2446.238.940.1
Change+4.2+1.0+2.3
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With a median age of 46.2, Stanley County is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. Stanley County is older than at least four in five South Dakota counties.

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 Stanley County

Single-parent households, % of households
PeriodStanley CountySouth DakotaU.S.
2006–1012.1%10.8%12.3%
2010–1412.7%11.1%12.3%
2015–197.7%10.9%11.6%
2020–245.2%10.7%11.6%
Change−6.8 pts−0.1 pts−0.6 pts
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Single-parent households are relatively rare in Stanley County: 5.2% of households, against 11.6% nationally. Compared with other South Dakota counties, Stanley County has a lower share of single-parent households than most.

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 Stanley County

Renters in Stanley County

Renters, % of occupied homes
PeriodStanley CountySouth DakotaU.S.
2006–1023.9%31.1%33.3%
2010–1421.7%32.0%35.6%
2015–1921.1%32.0%36.0%
2020–2416.9%31.4%34.8%
Change−7.0 pts+0.3 pts+1.5 pts
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Only 16.9% of households in Stanley 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 (48.3%) have paid off their mortgages, above the national share of 39.8%. Of South Dakota's 66 counties, only five have a lower share of renters.

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 Stanley County

Vacant homes, % of all homes
PeriodStanley CountySouth DakotaU.S.
2006–1011.1%11.3%11.4%
2010–1413.7%10.7%11.4%
2015–1911.6%11.6%11.1%
2020–2417.7%10.3%9.6%
Change+6.5 pts−1.1 pts−1.8 pts
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Vacancy is high in Stanley County: 17.7% of homes are empty, far above the national rate of 9.6%. In resort and lake areas that usually means seasonal and vacation homes; elsewhere it can point to weak demand.

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 Stanley County

Age of homes, median year built
PeriodStanley CountySouth DakotaU.S.
2006–10197619721974
2010–14197819741975
2015–19198919771977
2020–24198919811980
Change+13+9+6
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Much of the housing in Stanley County is relatively new: half of its homes were built after 1989, compared with 1980 for the U.S. as a whole. Few South Dakota counties have newer homes: only three of 66.

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 Stanley County

Rent, per month
PeriodStanley CountySouth DakotaU.S.
2006–10$770$631$965
2010–14$642$692$1,040
2015–19$764$798$1,213
2020–24$954$1,000$1,571
Change+$184+$369+$606
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Rent in Stanley County runs $954 a month at the median, utilities included, well below the U.S. median of $1,571. South Dakota as a whole looks much the same. Rent takes 28.0% of the typical renter's income, just under the 30% mark often used to define affordable rent.

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 Stanley County

Bachelor's degrees in Stanley County

Bachelor's degrees, % of adults 25+
PeriodStanley CountySouth DakotaU.S.
2006–1027.9%26.8%28.4%
2010–1425.6%27.8%29.6%
2015–1931.9%29.4%32.1%
2020–2428.3%32.5%35.6%
Change+0.4 pts+5.6 pts+7.2 pts
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College degrees are less common in Stanley County than nationally: 28.3% of adults 25 and older have a bachelor's or higher, against 35.6%. Compared with other South Dakota counties, though, Stanley County has a higher share of college graduates than most.

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 Stanley County

High school graduates, % of adults 25+
PeriodStanley CountySouth DakotaU.S.
2006–1091.0%89.9%84.9%
2010–1490.0%91.0%86.1%
2015–1994.9%91.8%87.7%
2020–2493.7%93.1%89.3%
Change+2.8 pts+3.2 pts+4.3 pts
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High school completion in Stanley County is above the national rate: 93.7% of adults have a diploma or equivalent, against 89.3%. That is in line with the rest of South Dakota.

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 Stanley County

Unemployment, % of the labor force
PeriodStanley CountySouth DakotaU.S.
2006–104.9%4.9%8.1%
2010–142.0%4.9%9.4%
2015–190.5%3.6%5.6%
2020–240.4%3.1%5.4%
Change−4.5 pts−1.7 pts−2.7 pts
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Unemployment in Stanley County has been low: just 0.4% of the labor force was out of work and looking, well below the national rate of 5.4%. Few South Dakota counties have lower unemployment: only four of 66. 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).

Stanley County compared with nearby counties

CountyHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Stanley County2.3546.25.2%16.9%17.7%1989$95428.3%93.7%0.4%
Hughes County2.3540.215.6%28.0%9.4%1979$1,11838.2%96.6%0.7%
Beadle County2.5737.98.9%27.1%10.4%1962$98628.0%87.8%1.7%
Meade County2.5539.39.5%27.1%8.8%1989$1,15328.4%94.9%3.2%
Kingsbury County2.5442.46.0%17.9%18.0%1963$68722.6%92.1%1.0%
Lawrence County2.2544.96.9%34.9%13.7%1987$98333.3%95.5%1.5%
Brookings County2.3932.25.0%42.8%9.7%1985$1,01941.5%97.3%3.4%
Crook County2.6645.64.3%21.9%20.1%1985$81322.0%92.9%0.8%
Lincoln County2.2346.17.0%18.6%19.1%1960$69525.7%94.4%2.6%
Lyon County2.5037.99.7%27.5%9.9%1971$81330.8%92.0%3.0%
Campbell County2.6736.810.9%22.3%10.6%1993$1,03623.9%91.7%4.1%

All figures 2020–24.

Counties with similar populations: Craig County, VA · Terrell County, TX · Terrell County, GA · Tensas Parish, LA · Telfair County, GA · Taylor County, IA · Surry County, VA · Sumter County, AL · Crane County, TX · Terry County, TX

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 Stanley 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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