17821, PA Demographics

Population 18,784 · Census ACS 2020–24

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17821, PA map of median age by neighborhood
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Population and households in ZIP 17821

Household size in ZIP 17821

Household size, people per household
PeriodZIP 17821PennsylvaniaU.S.
2006–102.342.512.68
2010–142.402.532.73
2015–192.372.502.71
2020–242.292.462.65
Change−0.05−0.05−0.03
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Households in ZIP 17821 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. Household size has edged down from 2.34 in 2006–10, mirroring the country.

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 17821

Median age, years
PeriodZIP 17821PennsylvaniaU.S.
2006–1044.340.337.7
2010–1443.841.038.6
2015–1944.441.839.6
2020–2442.742.040.1
Change−1.7+1.7+2.3
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ZIP 17821 skews a little older than the country: its median age is 42.7, against 40.1 nationally. The median age has dropped from 44.3 in 2006–10, even as the national median rose. The youngest areas are in the center, the oldest in the northeast.

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 17821

Single-parent households, % of households
PeriodZIP 17821PennsylvaniaU.S.
2006–107.4%10.5%12.3%
2010–147.2%10.6%12.3%
2015–1910.2%10.5%11.6%
2020–249.1%10.7%11.6%
Change+1.7 pts+0.2 pts−0.6 pts
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Single parents head just over one in twelve households in ZIP 17821 (9.1%), below the national share of 11.6%. The single-parent share has risen 1.7 points since 2006–10, even as the national share fell.

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 17821

Renters in ZIP 17821

Renters, % of occupied homes
PeriodZIP 17821PennsylvaniaU.S.
2006–1025.3%29.0%33.3%
2010–1427.1%30.5%35.6%
2015–1931.7%31.1%36.0%
2020–2430.1%30.7%34.8%
Change+4.8 pts+1.7 pts+1.5 pts
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About three in ten households in ZIP 17821 rent their homes (30.1%), a little below the national share of 34.8%; the rest own. Nearly half of owners (47.4%) have paid off their mortgages, above the national share of 39.8%. Renting is most common in the center and least common in the southwest. Since 2006–10, the renter share has risen 4.8 points, a much bigger shift than 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 ZIP 17821

Vacant homes, % of all homes
PeriodZIP 17821PennsylvaniaU.S.
2006–107.8%10.3%11.4%
2010–147.9%10.5%11.4%
2015–1910.0%10.7%11.1%
2020–244.2%9.1%9.6%
Change−3.6 pts−1.2 pts−1.8 pts
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Only 4.2% of homes in ZIP 17821 are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy is down 3.6 points from 2006–10, in line with the national trend. ZIP 17821 has a lower vacancy rate than at least four in five Pennsylvania ZIP codes.

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 17821

Age of homes, median year built
PeriodZIP 17821PennsylvaniaU.S.
2006–10196819631974
2010–14196919641975
2015–19197019651977
2020–24197319671980
Change+6+4+6
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Homes in ZIP 17821 run older than the national norm, with a median build year of 1973 against 1980. Even so, homes here are newer than in Pennsylvania overall, where the median home dates to 1967. The median year built has moved up from 1968 in 2006–10, a sign of steady new building. Newer construction is concentrated in the west, while the center 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 ZIP 17821

Rent, per month
PeriodZIP 17821PennsylvaniaU.S.
2006–10$597$829$965
2010–14$758$923$1,040
2015–19$771$1,039$1,213
2020–24$1,160$1,323$1,571
Change+$563+$494+$606
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A typical rental in ZIP 17821 costs $1,160 a month with utilities, well below the national median of $1,571. Rents are up $563 a month from 2006–10, a 94% jump, faster than rents rose nationally. The typical renter here spends 25.9% of household income on rent, comfortably under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally. Renters on a budget will find the lowest rents in the northeast; the highest are 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 ZIP 17821

Bachelor's degrees in ZIP 17821

Bachelor's degrees, % of adults 25+
PeriodZIP 17821PennsylvaniaU.S.
2006–1027.6%27.2%28.4%
2010–1430.9%28.7%29.6%
2015–1934.4%31.8%32.1%
2020–2440.2%35.6%35.6%
Change+12.5 pts+8.3 pts+7.2 pts
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College degrees are a bit more common in ZIP 17821 than nationally: 40.2% of adults 25 and older have a bachelor's or higher, against 35.6%. The share with a degree has risen 12.5 points since 2006–10, as it has nationally. College graduates are most concentrated in the east and least in the northwest.

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 17821

High school graduates, % of adults 25+
PeriodZIP 17821PennsylvaniaU.S.
2006–1089.3%87.3%84.9%
2010–1491.0%88.8%86.1%
2015–1991.2%90.3%87.7%
2020–2494.2%91.8%89.3%
Change+5.0 pts+4.5 pts+4.3 pts
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High school completion in ZIP 17821 is above the national rate: 94.2% of adults have a diploma, against 89.3%. The share with a diploma has risen 5.0 points since 2006–10, mirroring the country.

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 17821

Unemployment, % of the labor force
PeriodZIP 17821PennsylvaniaU.S.
2006–105.7%7.5%8.1%
2010–147.7%8.8%9.4%
2015–192.0%5.5%5.6%
2020–242.8%5.4%5.4%
Change−2.9 pts−2.1 pts−2.7 pts
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The job market in ZIP 17821 has been strong: just 2.8% of the labor force was out of work and looking, well below the national rate of 5.4%. Unemployment has fallen 2.9 points since 2006–10, in line with the national trend. Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current 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 17821 compared with nearby ZIP codes

ZIP codeHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
ZIP 178212.2942.79.1%30.1%4.2%1973$1,16040.2%94.2%2.8%
ZIP 178682.0543.04.7%12.3%5.2%1958$1,11735.6%97.1%1.3%
ZIP 178842.4529.315.6%26.6%2.8%1973$90717.3%89.6%2.6%
ZIP 178652.0955.79.5%16.4%7.2%1967$87925.4%92.5%1.8%
ZIP 178242.4945.83.5%9.2%10.5%1978$1,44343.0%96.4%2.6%
ZIP 178152.3438.66.3%37.3%11.8%1971$1,09832.5%93.8%6.4%
ZIP 178572.1447.613.6%22.5%5.4%1965$88825.0%94.4%2.3%
ZIP 178602.4750.53.4%5.2%4.9%1977$1,11324.7%92.6%3.1%
ZIP 178202.3844.67.7%22.2%12.0%1966$86227.9%94.7%4.5%
ZIP 178472.2942.413.7%35.2%7.4%1969$99720.3%92.9%4.7%
ZIP 178012.3345.612.4%31.3%9.6%1959$81916.9%90.6%3.7%

All figures 2020–24.

Zip codes with similar populations: 06032, CT · 06615, CT · 55350, MN · 79045, TX · 77318, TX · 44278, OH · 46703, IN · 01748, MA · 48838, MI · 53538, WI

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 17821. 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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