Population 18,927 · Census ACS 2020–24
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Population and households in ZIP 18603
Household size in ZIP 18603
| Period | ZIP 18603 | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 2.38 | 2.51 | 2.68 |
| 2010–14 | 2.37 | 2.53 | 2.73 |
| 2015–19 | 2.26 | 2.50 | 2.71 |
| 2020–24 | 2.29 | 2.46 | 2.65 |
| Change | −0.09 | −0.05 | −0.03 |
ZIP 18603 is a place of small households, averaging 2.29 people against 2.65 for the U.S., which points to many singles, couples and roommates and relatively few children. Household size has dropped from 2.38 in 2006–10, a much bigger shift than nationally. Households are largest in the northwest and smallest in the northeast.
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 18603
| Period | ZIP 18603 | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 42.4 | 40.3 | 37.7 |
| 2010–14 | 44.3 | 41.0 | 38.6 |
| 2015–19 | 46.2 | 41.8 | 39.6 |
| 2020–24 | 45.2 | 42.0 | 40.1 |
| Change | +2.7 | +1.7 | +2.3 |
With a median age of 45.2, ZIP 18603 is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. The median age has climbed from 42.4 in 2006–10, as it has nationally. The youngest areas are in the south, 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 18603
| Period | ZIP 18603 | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 13.0% | 10.5% | 12.3% |
| 2010–14 | 13.5% | 10.6% | 12.3% |
| 2015–19 | 12.4% | 10.5% | 11.6% |
| 2020–24 | 10.4% | 10.7% | 11.6% |
| Change | −2.6 pts | +0.2 pts | −0.6 pts |
Single parents head about one in ten households in ZIP 18603 (10.4%), a little below the national share of 11.6%. That is in line with the rest of Pennsylvania. Since 2006–10, the single-parent share has fallen 2.6 points, 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 ZIP 18603
Renters in ZIP 18603
| Period | ZIP 18603 | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 26.0% | 29.0% | 33.3% |
| 2010–14 | 30.5% | 30.5% | 35.6% |
| 2015–19 | 28.4% | 31.1% | 36.0% |
| 2020–24 | 28.6% | 30.7% | 34.8% |
| Change | +2.6 pts | +1.7 pts | +1.5 pts |
Nearly three in ten households in ZIP 18603 rent their homes (28.6%), a little below the national share of 34.8%; the rest own. Among homeowners, 48.0% have no mortgage at all, above the national share of 39.8%. Rentals cluster in the south; owners are most common in the northeast. The renter share is up 2.6 points from 2006–10, mirroring the country.
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 18603
| Period | ZIP 18603 | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 9.2% | 10.3% | 11.4% |
| 2010–14 | 9.9% | 10.5% | 11.4% |
| 2015–19 | 13.4% | 10.7% | 11.1% |
| 2020–24 | 10.2% | 9.1% | 9.6% |
| Change | +1.1 pts | −1.2 pts | −1.8 pts |
About as many homes sit empty in ZIP 18603 as nationally: 10.2%, against 9.6%. Vacancy is up 1.1 points from 2006–10, even as the national rate fell.
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 18603
| Period | ZIP 18603 | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 1955 | 1963 | 1974 |
| 2010–14 | 1953 | 1964 | 1975 |
| 2015–19 | 1959 | 1965 | 1977 |
| 2020–24 | 1962 | 1967 | 1980 |
| Change | +7 | +4 | +6 |
ZIP 18603 is a place of older homes: half were built before 1962, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. The median year built has moved up from 1955 in 2006–10, a sign of steady new building. 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 ZIP 18603
| Period | ZIP 18603 | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | $608 | $829 | $965 |
| 2010–14 | $661 | $923 | $1,040 |
| 2015–19 | $733 | $1,039 | $1,213 |
| 2020–24 | $889 | $1,323 | $1,571 |
| Change | +$281 | +$494 | +$606 |
The median renter in ZIP 18603 pays $889 a month for rent and utilities, well below the national median of $1,571. Rents are up $281 a month from 2006–10, a 46% rise, a slower climb than the nation's. The typical renter here spends 33.1% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched. The priciest rents are in the southwest; the most affordable are in the center.
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 18603
Bachelor's degrees in ZIP 18603
| Period | ZIP 18603 | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 12.3% | 27.2% | 28.4% |
| 2010–14 | 16.2% | 28.7% | 29.6% |
| 2015–19 | 18.1% | 31.8% | 32.1% |
| 2020–24 | 21.6% | 35.6% | 35.6% |
| Change | +9.4 pts | +8.3 pts | +7.2 pts |
Fewer adults in ZIP 18603 have a four-year degree than in the country as a whole: 21.6%, against 35.6% nationally. Since 2006–10, the share with a degree has risen 9.4 points, as it has nationally. College graduates are most concentrated in the east and least in the southwest.
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 18603
| Period | ZIP 18603 | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 82.7% | 87.3% | 84.9% |
| 2010–14 | 84.5% | 88.8% | 86.1% |
| 2015–19 | 88.5% | 90.3% | 87.7% |
| 2020–24 | 90.8% | 91.8% | 89.3% |
| Change | +8.1 pts | +4.5 pts | +4.3 pts |
About nine in ten adults in ZIP 18603 have finished high school (90.8%), a bit above the national rate of 89.3%. That is in line with the rest of Pennsylvania. Since 2006–10, the share with a diploma has risen 8.1 points, 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 ZIP 18603
| Period | ZIP 18603 | Pennsylvania | U.S. |
|---|---|---|---|
| 2006–10 | 5.8% | 7.5% | 8.1% |
| 2010–14 | 7.5% | 8.8% | 9.4% |
| 2015–19 | 5.5% | 5.5% | 5.6% |
| 2020–24 | 5.7% | 5.4% | 5.4% |
| Change | −0.1 pts | −2.1 pts | −2.7 pts |
At 5.7%, unemployment in ZIP 18603 is close to the national rate of 5.4%. 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 18603 compared with nearby ZIP codes
| ZIP code | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| ZIP 18603 | 2.29 | 45.2 | 10.4% | 28.6% | 10.2% | 1962 | $889 | 21.6% | 90.8% | 5.7% |
| ZIP 18635 | 2.37 | 45.4 | 6.3% | 19.9% | 9.8% | 1968 | $1,020 | 25.7% | 96.0% | 5.7% |
| ZIP 18631 | 2.14 | 48.0 | 5.6% | 22.5% | 3.3% | 1968 | $983 | 30.8% | 96.9% | 0.2% |
| ZIP 18246 | 2.02 | 57.6 | 5.0% | 5.2% | 34.0% | 1963 | $625 | 30.9% | 96.5% | 2.4% |
| ZIP 17878 | 2.41 | 49.2 | 3.5% | 12.2% | 18.6% | 1975 | $736 | 22.2% | 94.1% | 4.6% |
| ZIP 17859 | 2.50 | 48.7 | 3.8% | 11.4% | 15.5% | 1976 | $867 | 25.7% | 93.8% | 3.0% |
| ZIP 18655 | 2.41 | 48.1 | 7.9% | 15.8% | 14.8% | 1971 | $981 | 18.8% | 91.0% | 6.8% |
| ZIP 18241 | 2.07 | 56.3 | 6.0% | 6.1% | 25.5% | 1971 | $715 | 23.5% | 92.4% | 3.0% |
| ZIP 18249 | 2.55 | 44.2 | 5.3% | 17.6% | 6.3% | 1982 | $1,214 | 33.3% | 96.6% | 3.7% |
| ZIP 18256 | 2.02 | 57.6 | 5.0% | 5.2% | 34.0% | 1963 | $625 | 30.9% | 96.5% | 2.4% |
| ZIP 18660 | 2.42 | 48.0 | 5.3% | 8.0% | 10.1% | 1977 | $953 | 27.0% | 94.0% | 5.8% |
All figures 2020–24.
Zip codes with similar populations: 85284, AZ · 54455, WI · 53185, WI · 46733, IN · 46356, IN · 63137, MO · 76234, TX · 35111, AL · 34285, FL · 87122, NM
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 18603. 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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