18331, PA Demographics

Population 869 · Census ACS 2020–24

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18331, PA map of median age by neighborhood
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Population and households in ZIP 18331

Household size in ZIP 18331

Household size, people per household
PeriodZIP 18331PennsylvaniaU.S.
2006–102.792.512.68
2010–142.892.532.73
2015–193.042.502.71
2020–242.292.462.65
Change−0.50−0.05−0.03
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Households in ZIP 18331 are small: just 2.29 people on average, compared with 2.65 nationally. That is typical of places where many people live alone or as couples, and fewer have children at home. Since 2006–10, household size has dropped from 2.79, 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 ZIP 18331

Median age, years
PeriodZIP 18331PennsylvaniaU.S.
2006–1041.340.337.7
2010–1444.341.038.6
2015–1938.841.839.6
2020–2454.942.040.1
Change+13.6+1.7+2.3
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With a median age of 54.9, ZIP 18331 is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees.

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 ZIP 18331

Single-parent households, % of households
PeriodZIP 18331PennsylvaniaU.S.
2006–1011.5%10.5%12.3%
2010–1410.4%10.6%12.3%
2015–1911.7%10.5%11.6%
2020–248.3%10.7%11.6%
Change−3.2 pts+0.2 pts−0.6 pts
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Single parents head only 8.3% of households in ZIP 18331, well below the national share of 11.6%.

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 ZIP 18331

Renters in ZIP 18331

Renters, % of occupied homes
PeriodZIP 18331PennsylvaniaU.S.
2006–1018.6%29.0%33.3%
2010–1412.5%30.5%35.6%
2015–1924.1%31.1%36.0%
2020–2414.9%30.7%34.8%
Change−3.7 pts+1.7 pts+1.5 pts
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ZIP 18331 is overwhelmingly a place of homeowners: only 14.9% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. More than four in ten owners (44.7%) 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 ZIP 18331

Vacant homes, % of all homes
PeriodZIP 18331PennsylvaniaU.S.
2006–1010.1%10.3%11.4%
2010–1419.0%10.5%11.4%
2015–1924.0%10.7%11.1%
2020–2410.1%9.1%9.6%
Change+0.1 pts−1.2 pts−1.8 pts
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About as many homes sit empty in ZIP 18331 as nationally: 10.1%, against 9.6%.

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 ZIP 18331

Age of homes, median year built
PeriodZIP 18331PennsylvaniaU.S.
2006–10198119631974
2010–14198519641975
2015–19198319651977
2020–24197719671980
Change−4+4+6
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Homes in ZIP 18331 are about the same age as the nation's housing: the median home was built in 1977, versus 1980 nationally. Homes here are newer than in Pennsylvania as a whole, 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 ZIP 18331

Rent, per month
PeriodZIP 18331PennsylvaniaU.S.
2006–10$862$829$965
2010–14$1,006$923$1,040
2015–19$1,092$1,039$1,213
2020–24$1,133$1,323$1,571
Change+$271+$494+$606
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The median renter in ZIP 18331 pays $1,133 a month for rent and utilities, well below the national median of $1,571. The typical renter here spends 41.8% 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 ZIP 18331

Bachelor's degrees in ZIP 18331

Bachelor's degrees, % of adults 25+
PeriodZIP 18331PennsylvaniaU.S.
2006–1017.5%27.2%28.4%
2010–1419.0%28.7%29.6%
2015–1917.1%31.8%32.1%
2020–2422.2%35.6%35.6%
Change+4.6 pts+8.3 pts+7.2 pts
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College degrees are relatively uncommon in ZIP 18331: 22.2% of adults 25 and older hold a bachelor's or higher, well 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 ZIP 18331

High school graduates, % of adults 25+
PeriodZIP 18331PennsylvaniaU.S.
2006–1088.8%87.3%84.9%
2010–1483.5%88.8%86.1%
2015–1991.4%90.3%87.7%
2020–2490.0%91.8%89.3%
Change+1.2 pts+4.5 pts+4.3 pts
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About as many adults in ZIP 18331 have finished high school as nationally: 90.0%, against 89.3%. The rate is lower than in Pennsylvania overall (91.8%).

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 ZIP 18331

Unemployment, % of the labor force
PeriodZIP 18331PennsylvaniaU.S.
2006–108.1%7.5%8.1%
2010–1412.6%8.8%9.4%
2015–195.7%5.5%5.6%
2020–2413.0%5.4%5.4%
Change+4.9 pts−2.1 pts−2.7 pts
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Finding work has been harder in ZIP 18331: 13.0% of the labor force was out of work and looking, well above 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).

ZIP 18331 compared with nearby ZIP codes

ZIP codeHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
ZIP 183312.2954.98.3%14.9%10.1%1977$1,13322.2%90.0%13.0%
ZIP 183223.0645.52.5%7.1%6.6%1979$1,00630.8%90.4%7.3%
ZIP 180582.5849.26.6%12.2%17.2%1981$1,53620.0%88.5%3.4%
ZIP 183332.5948.62.3%9.1%7.7%1982$1,85924.2%94.4%4.5%
ZIP 183532.7247.65.6%10.0%9.1%1985$1,30728.0%90.8%7.4%
ZIP 183302.8646.37.0%7.2%16.8%1988$1,58324.8%93.3%5.7%
ZIP 183542.3646.04.6%29.2%11.8%1981$1,16624.3%94.7%8.7%
ZIP 182102.3249.98.6%8.7%38.5%1991$1,23224.1%88.7%5.9%
ZIP 183522.5150.03.5%7.7%8.5%1982$1,40725.6%88.5%4.4%
ZIP 180912.4447.36.5%34.4%3.1%1973$1,45530.9%91.1%4.6%
ZIP 186102.9943.86.1%13.8%23.0%1989$1,11423.6%86.7%3.5%

All figures 2020–24.

Zip codes with similar populations: 62219, IL · 16836, PA · 20680, MD · 78948, TX · 74831, OK · 74026, OK · 30426, GA · 31756, GA · 63867, MO · 62807, IL

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 ZIP 18331. 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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