Williamson, PA Demographics

Population 540 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Williamson, PA map of median age by neighborhood
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Population and households in Williamson

Household size in Williamson

Household size, people per household
PeriodWilliamsonPennsylvaniaU.S.
2006–102.932.512.68
2010–142.782.532.73
2015–193.002.502.71
2020–242.792.462.65
Change−0.14−0.05−0.03
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The typical household in Williamson holds 2.79 people, slightly more than the U.S. average of 2.65. Household size has dropped from 2.93 in 2006–10, but in a place this small, much of that may be survey noise rather than real change.

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 Williamson

Median age, years
PeriodWilliamsonPennsylvaniaU.S.
2006–1039.540.337.7
2010–1442.941.038.6
2015–1938.141.839.6
2020–2439.542.040.1
Change+0.0+1.7+2.3
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At 39.5, the median age in Williamson is close to the national median of 40.1, so its age mix looks much like the country's. The population here is younger than in Pennsylvania as a whole, where the median age is 42.0.

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 Williamson

Single-parent households, % of households
PeriodWilliamsonPennsylvaniaU.S.
2006–1010.4%10.5%12.3%
2010–147.7%10.6%12.3%
2015–197.9%10.5%11.6%
2020–2419.4%10.7%11.6%
Change+9.0 pts+0.2 pts−0.6 pts
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Single-parent households are common in Williamson: 19.4% of all households, against 11.6% 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 Williamson

Renters in Williamson

Renters, % of occupied homes
PeriodWilliamsonPennsylvaniaU.S.
2006–105.0%29.0%33.3%
2010–1418.0%30.5%35.6%
2015–1929.6%31.1%36.0%
2020–2424.8%30.7%34.8%
Change+19.8 pts+1.7 pts+1.5 pts
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About a quarter of households in Williamson rent their homes (24.8%), below the national share of 34.8%; the rest own. Among homeowners, 39.7% have no mortgage at all, about the same as nationally.

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 Williamson

Vacant homes, % of all homes
PeriodWilliamsonPennsylvaniaU.S.
2006–106.1%10.3%11.4%
2010–145.9%10.5%11.4%
2015–195.5%10.7%11.1%
2020–244.1%9.1%9.6%
Change−2.0 pts−1.2 pts−1.8 pts
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Empty homes are scarce in Williamson: just 4.1% sit vacant, compared with 9.6% nationally, a sign of a tight housing market.

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 Williamson

Age of homes, median year built
PeriodWilliamsonPennsylvaniaU.S.
2006–10196319631974
2010–14198019641975
2015–19197719651977
2020–24198019671980
Change+17+4+6
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Homes in Williamson are the same age as the nation's housing: the median home was built in 1980. Homes here are newer than in Pennsylvania overall, where the median home dates to 1967.

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 Williamson

Rent, per month
PeriodWilliamsonPennsylvaniaU.S.
2006–10$662$829$965
2010–14$883$923$1,040
2015–19$965$1,039$1,213
2020–24$1,259$1,323$1,571
Change+$597+$494+$606
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The median renter in Williamson pays $1,259 a month for rent and utilities, below the national median of $1,571. The picture is much the same across Pennsylvania. Rent takes 22.2% of the typical renter's income, comfortably 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 Williamson

Bachelor's degrees in Williamson

Bachelor's degrees, % of adults 25+
PeriodWilliamsonPennsylvaniaU.S.
2006–1011.5%27.2%28.4%
2010–1415.0%28.7%29.6%
2015–1914.1%31.8%32.1%
2020–2426.7%35.6%35.6%
Change+15.1 pts+8.3 pts+7.2 pts
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Just over a quarter of adults 25 and older in Williamson (26.7%) have a bachelor's degree or higher, below the national share of 35.6%.

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 Williamson

High school graduates, % of adults 25+
PeriodWilliamsonPennsylvaniaU.S.
2006–1086.1%87.3%84.9%
2010–1485.5%88.8%86.1%
2015–1993.4%90.3%87.7%
2020–2493.8%91.8%89.3%
Change+7.7 pts+4.5 pts+4.3 pts
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High school completion in Williamson is above the national rate: 93.8% of adults have a diploma or equivalent, against 89.3%.

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 Williamson

Unemployment, % of the labor force
PeriodWilliamsonPennsylvaniaU.S.
2006–106.0%7.5%8.1%
2010–147.9%8.8%9.4%
2015–194.5%5.5%5.6%
2020–246.1%5.4%5.4%
Change+0.1 pts−2.1 pts−2.7 pts
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At 6.1%, unemployment in Williamson is close to the national rate of 5.4%. 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).

Williamson compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Williamson2.7939.519.4%24.8%4.1%1980$1,25926.7%93.8%6.1%
Upton3.2035.713.3%16.1%5.9%1986$1,59023.1%93.6%1.2%
Church Hill2.4846.414.1%15.7%4.6%1971$1,40719.5%92.5%2.6%
Greencastle2.6941.29.5%19.1%5.2%1981$1,20728.2%93.9%2.5%
Marion2.4250.56.4%11.5%5.8%1971$1,28721.0%86.5%1.4%
St. Thomas2.9841.719.9%13.3%10.6%1978$1,13719.4%90.8%4.7%
Milnor2.4346.85.9%6.5%2.0%1995$1,29728.2%92.9%2.3%
Welsh Run2.9742.412.0%21.3%9.2%1977$1,35819.5%88.7%4.8%
Mercersburg2.4846.112.8%22.3%9.3%1969$1,25620.9%91.9%3.7%
Shady Grove2.4447.75.4%10.8%3.4%1972$98513.5%83.2%1.7%
Dutchtown1.7825.34.4%8.6%2.7%1994$99027.1%95.1%0.0%

All figures 2020–24.

Cities with similar populations: Covington, OK · Walker, MO · Walcott, ND · Wakonda, SD · Wakonda Beach, OR · Easton, ME · East Laport, NC · Denny Store, NC · Delano, OH · Daisy, GA

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 Williamson. 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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