St. Andrews, SC Demographics

Population 22,567 · Census ACS 2020–24

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St. Andrews, SC map of median age by neighborhood
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Population and households in St. Andrews

Household size in St. Andrews

Household size, people per household
PeriodSt. AndrewsColumbia areaSouth CarolinaU.S.
2006–102.072.512.542.68
2010–142.222.552.592.73
2015–192.132.552.572.71
2020–241.992.462.502.65
Change−0.08−0.05−0.04−0.03
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St. Andrews is a place of small households, averaging 1.99 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Household size has edged down from 2.07 in 2006–10, as it has nationally. Only two of the 172 South Carolina cities with 5,000+ people have smaller households.

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 St. Andrews

Median age, years
PeriodSt. AndrewsColumbia areaSouth CarolinaU.S.
2006–1031.437.138.337.7
2010–1431.437.839.338.6
2015–1932.838.640.639.6
2020–2433.139.441.240.1
Change+1.8+2.3+2.9+2.3
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St. Andrews is young: half of its residents are under 33.1, compared with a national median of 40.1. The population tilts toward young adults, many of them living alone or as couples. Since 2006–10, the median age has climbed from 31.4, in line with the national trend. Only six of the 172 South Carolina cities with 5,000+ people are younger.

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 St. Andrews

Single-parent households, % of households
PeriodSt. AndrewsColumbia areaSouth CarolinaU.S.
2006–1018.5%13.2%13.0%12.3%
2010–1419.5%13.4%13.0%12.3%
2015–1916.0%12.9%11.8%11.6%
2020–2415.4%12.9%11.7%11.6%
Change−3.1 pts−0.3 pts−1.3 pts−0.6 pts
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Single parents head just over one in seven households in St. Andrews (15.4%), well above the national share of 11.6%. The single-parent share is down 3.1 points from 2006–10, a much bigger shift than nationally.

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 St. Andrews

Renters in St. Andrews

Renters, % of occupied homes
PeriodSt. AndrewsColumbia areaSouth CarolinaU.S.
2006–1065.2%31.2%30.1%33.3%
2010–1466.3%32.8%31.4%35.6%
2015–1970.4%32.1%30.6%36.0%
2020–2471.5%30.6%28.1%34.8%
Change+6.4 pts−0.6 pts−2.0 pts+1.5 pts
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Most households in St. Andrews rent: 71.5% of occupied homes are rented, far above the national share of 34.8%. Expect more apartments, and more turnover, than in owner-heavy areas. The renter share has risen 6.4 points since 2006–10, a much bigger shift than nationally. St. Andrews has the highest share of renters of any South Carolina city with 5,000+ people.

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 St. Andrews

Vacant homes, % of all homes
PeriodSt. AndrewsColumbia areaSouth CarolinaU.S.
2006–1011.6%10.7%14.2%11.4%
2010–1414.4%12.0%14.2%11.4%
2015–1913.8%11.8%13.3%11.1%
2020–2411.0%10.3%11.8%9.6%
Change−0.6 pts−0.4 pts−2.5 pts−1.8 pts
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About as many homes sit empty in St. Andrews as nationally: 11.0%, against 9.6%. Vacancy is down 0.6 points from 2006–10, as it has nationally.

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 St. Andrews

Age of homes, median year built
PeriodSt. AndrewsColumbia areaSouth CarolinaU.S.
2006–101977198419841974
2010–141977198519851975
2015–191978198619871977
2020–241979199019911980
Change+2+6+7+6
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The typical home in St. Andrews was built around 1979, about the same vintage as the country's housing overall (1980). Homes here are older than in the Columbia area as a whole, where the median home dates to 1990. Newer construction is concentrated in the northwest, while the east has the oldest housing.

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 St. Andrews

Rent, per month
PeriodSt. AndrewsColumbia areaSouth CarolinaU.S.
2006–10$758$831$780$965
2010–14$796$908$859$1,040
2015–19$875$1,021$984$1,213
2020–24$1,148$1,285$1,294$1,571
Change+$390+$453+$514+$606
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Rent in St. Andrews runs $1,148 a month at the median, utilities included, well below the U.S. median of $1,571. Rents are up $390 a month from 2006–10, a 52% rise, a slower climb than the nation's. The typical renter here spends 36.0% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched.

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 St. Andrews

Bachelor's degrees in St. Andrews

Bachelor's degrees, % of adults 25+
PeriodSt. AndrewsColumbia areaSouth CarolinaU.S.
2006–1032.2%31.5%25.2%28.4%
2010–1427.7%31.8%26.5%29.6%
2015–1925.6%34.1%28.9%32.1%
2020–2428.1%35.9%32.6%35.6%
Change−4.1 pts+4.4 pts+7.4 pts+7.2 pts
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College degrees are less common in St. Andrews than nationally: 28.1% of adults 25 and older have a bachelor's or higher, against 35.6%. The share with a degree has fallen 4.1 points since 2006–10, even as the national share rose. College graduates are most concentrated in the southeast and least in the west.

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 St. Andrews

High school graduates, % of adults 25+
PeriodSt. AndrewsColumbia areaSouth CarolinaU.S.
2006–1089.0%88.1%84.0%84.9%
2010–1490.8%88.7%85.7%86.1%
2015–1990.1%90.2%87.8%87.7%
2020–2491.7%91.4%90.2%89.3%
Change+2.7 pts+3.3 pts+6.2 pts+4.3 pts
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High school completion in St. Andrews is a bit above the national rate: 91.7% of adults have a diploma or equivalent, against 89.3%. That is in line with the rest of the Columbia area. The share with a diploma has risen 2.7 points since 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 St. Andrews

Unemployment, % of the labor force
PeriodSt. AndrewsColumbia areaSouth CarolinaU.S.
2006–109.1%7.6%9.1%8.1%
2010–1412.0%9.7%10.6%9.4%
2015–199.8%6.0%5.8%5.6%
2020–247.9%5.4%4.9%5.4%
Change−1.2 pts−2.2 pts−4.2 pts−2.7 pts
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Finding work has been harder in St. Andrews: 7.9% of the labor force was out of work and looking, well above the national rate of 5.4%. Unemployment has edged down 1.2 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).

St. Andrews compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
St. Andrews1.9933.115.4%71.5%11.0%1979$1,14828.1%91.7%7.9%
Seven Oaks2.3541.814.3%38.1%7.0%1975$1,29636.9%94.9%5.5%
Springdale2.6535.813.3%32.0%11.3%1972$1,13524.8%92.0%5.3%
West Columbia2.2839.810.6%32.6%9.3%1986$1,13834.3%90.0%4.2%
Hollywood Hills2.8041.712.3%6.6%7.7%1997$67942.0%99.0%3.7%
Cayce2.1341.412.4%37.3%8.0%1978$1,25934.3%92.9%4.8%
Irmo2.7141.312.3%16.8%5.0%1995$1,73846.1%95.3%5.0%
Olympia2.7624.213.0%78.8%21.2%1945$1,17116.6%65.2%6.1%
Columbia area2.4639.412.9%30.6%10.3%1990$1,28535.9%91.4%5.4%
Forest Acres2.1443.48.2%22.6%8.2%1968$1,38163.3%96.2%3.7%
Arcadia Lakes2.1045.115.5%34.8%13.8%1980$1,70754.5%90.4%0.4%

All figures 2020–24.

Cities with similar populations: Coronado, CA · South San Jose Hills, CA · Selma, AL · Elko, NV · Elgin, TX · Dover, NJ · DeBary, FL · Davidson, NC · Darlington, SC · Cudahy, CA

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 St. Andrews. 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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