Population 19,136 · Census ACS 2020–24
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Population and households in ZIP 18235
Household size in ZIP 18235
| Period | ZIP 18235 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.44 | 2.55 | 2.51 | 2.68 |
| 2010–14 | 2.48 | 2.60 | 2.53 | 2.73 |
| 2015–19 | 2.37 | 2.57 | 2.50 | 2.71 |
| 2020–24 | 2.47 | 2.56 | 2.46 | 2.65 |
| Change | +0.03 | +0.01 | −0.05 | −0.03 |
The average household in ZIP 18235 has 2.47 people, under the U.S. average of 2.65. Since 2006–10, household size has crept up from 2.44, even as the national average fell. The biggest households, usually families with children, are concentrated in the south.
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 18235
| Period | ZIP 18235 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 45.3 | 40.7 | 40.3 | 37.7 |
| 2010–14 | 45.0 | 41.6 | 41.0 | 38.6 |
| 2015–19 | 47.9 | 42.3 | 41.8 | 39.6 |
| 2020–24 | 45.2 | 42.3 | 42.0 | 40.1 |
| Change | −0.2 | +1.6 | +1.7 | +2.3 |
ZIP 18235 skews older: half of its residents are older than 45.2, well above the national median of 40.1. That usually means more empty nesters and retirees, and fewer young families.
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 18235
| Period | ZIP 18235 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.8% | 10.8% | 10.5% | 12.3% |
| 2010–14 | 9.0% | 11.0% | 10.6% | 12.3% |
| 2015–19 | 8.8% | 11.4% | 10.5% | 11.6% |
| 2020–24 | 11.4% | 11.5% | 10.7% | 11.6% |
| Change | +2.6 pts | +0.7 pts | +0.2 pts | −0.6 pts |
Single-parent households are about as common in ZIP 18235 as they are nationally: 11.4%, against 11.6%. Since 2006–10, the single-parent share has risen 2.6 points, 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 18235
Renters in ZIP 18235
| Period | ZIP 18235 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 21.6% | 26.9% | 29.0% | 33.3% |
| 2010–14 | 23.3% | 29.3% | 30.5% | 35.6% |
| 2015–19 | 21.7% | 31.2% | 31.1% | 36.0% |
| 2020–24 | 23.5% | 30.3% | 30.7% | 34.8% |
| Change | +1.9 pts | +3.4 pts | +1.7 pts | +1.5 pts |
ZIP 18235 is largely a place of homeowners: only 23.5% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. Just over four in ten owners (42.0%) have paid off their mortgages, about the same as nationally. Since 2006–10, the renter share has risen 1.9 points, as it has 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 18235
| Period | ZIP 18235 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 10.6% | 8.0% | 10.3% | 11.4% |
| 2010–14 | 11.1% | 8.6% | 10.5% | 11.4% |
| 2015–19 | 12.3% | 8.3% | 10.7% | 11.1% |
| 2020–24 | 11.4% | 6.5% | 9.1% | 9.6% |
| Change | +0.7 pts | −1.5 pts | −1.2 pts | −1.8 pts |
Vacancy runs a little high in ZIP 18235: 11.4% of homes are empty, against 9.6% nationally. The count includes vacation homes and homes between owners or tenants, not just abandoned ones. Vacancy has edged up 0.7 points since 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 18235
| Period | ZIP 18235 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 1964 | 1965 | 1963 | 1974 |
| 2010–14 | 1964 | 1967 | 1964 | 1975 |
| 2015–19 | 1963 | 1967 | 1965 | 1977 |
| 2020–24 | 1966 | 1969 | 1967 | 1980 |
| Change | +3 | +3 | +4 | +6 |
ZIP 18235 is a place of older homes: half were built before 1966, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. The newest homes are mostly in the northeast, the oldest in the center.
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 18235
| Period | ZIP 18235 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | $702 | $928 | $829 | $965 |
| 2010–14 | $838 | $1,020 | $923 | $1,040 |
| 2015–19 | $832 | $1,170 | $1,039 | $1,213 |
| 2020–24 | $1,033 | $1,504 | $1,323 | $1,571 |
| Change | +$331 | +$576 | +$494 | +$606 |
A typical rental in ZIP 18235 costs $1,033 a month with utilities, well below the national median of $1,571. Rent has climbed $331 a month since 2006–10, up 47%, a slower climb than the nation's. The typical renter here spends 31.8% of household income on rent, just over the 30% mark often used to define affordable rent. Renters on a budget will find the lowest rents in the center; 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 18235
Bachelor's degrees in ZIP 18235
| Period | ZIP 18235 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 12.8% | 26.0% | 27.2% | 28.4% |
| 2010–14 | 15.6% | 26.7% | 28.7% | 29.6% |
| 2015–19 | 16.7% | 29.5% | 31.8% | 32.1% |
| 2020–24 | 18.3% | 33.3% | 35.6% | 35.6% |
| Change | +5.5 pts | +7.3 pts | +8.3 pts | +7.2 pts |
College degrees are relatively uncommon in ZIP 18235: 18.3% of adults 25 and older hold a bachelor's or higher, well below the national share of 35.6%. Since 2006–10, the share with a degree has risen 5.5 points, as it has nationally. Only 60 of the 628 Pennsylvania ZIP codes with 5,000+ people have a lower share of college graduates.
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 18235
| Period | ZIP 18235 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 85.3% | 86.4% | 87.3% | 84.9% |
| 2010–14 | 88.3% | 88.0% | 88.8% | 86.1% |
| 2015–19 | 86.8% | 89.7% | 90.3% | 87.7% |
| 2020–24 | 90.3% | 91.4% | 91.8% | 89.3% |
| Change | +4.9 pts | +5.0 pts | +4.5 pts | +4.3 pts |
About as many adults in ZIP 18235 have finished high school as nationally: 90.3%, against 89.3%. The share with a diploma has risen 4.9 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 18235
| Period | ZIP 18235 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 7.4% | 7.3% | 7.5% | 8.1% |
| 2010–14 | 8.4% | 9.4% | 8.8% | 9.4% |
| 2015–19 | 7.1% | 5.5% | 5.5% | 5.6% |
| 2020–24 | 6.9% | 5.5% | 5.4% | 5.4% |
| Change | −0.5 pts | −1.8 pts | −2.1 pts | −2.7 pts |
Unemployment runs high in ZIP 18235: 6.9% of the labor force was out of work and looking, against 5.4% nationally. Unemployment has edged down 0.5 points since 2006–10, a smaller shift than nationally. 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 18235 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 18235 | 2.47 | 45.2 | 11.4% | 23.5% | 11.4% | 1966 | $1,033 | 18.3% | 90.3% | 6.9% |
| ZIP 18244 | 2.65 | 45.1 | 4.5% | 17.3% | 9.5% | 1988 | $1,068 | 19.1% | 94.6% | 3.5% |
| ZIP 18030 | 2.49 | 38.2 | 8.0% | 38.6% | 6.5% | 1951 | $1,005 | 25.1% | 84.9% | 14.4% |
| ZIP 18212 | 2.18 | 59.4 | 8.0% | 17.3% | 3.3% | 1996 | $1,095 | 10.3% | 83.6% | 6.4% |
| ZIP 18229 | 2.42 | 48.2 | 7.8% | 12.0% | 19.3% | 1970 | $1,154 | 26.1% | 95.2% | 6.6% |
| ZIP 18071 | 2.27 | 47.3 | 10.6% | 32.4% | 7.7% | 1962 | $1,025 | 16.3% | 89.5% | 2.8% |
| ZIP 18079 | 3.28 | 27.7 | 30.0% | 8.4% | 5.9% | 1938 | $1,063 | 14.1% | 70.4% | 0.0% |
| ZIP 18240 | 2.57 | 41.0 | 7.3% | 35.2% | 15.3% | 1950 | $1,026 | 18.2% | 91.3% | 13.0% |
| ZIP 18080 | 2.56 | 41.1 | 15.8% | 18.9% | 7.2% | 1964 | $988 | 22.5% | 91.9% | 3.2% |
| ZIP 18250 | 2.39 | 40.1 | 24.9% | 18.5% | 7.7% | 1942 | $1,281 | 7.7% | 93.8% | 7.7% |
| ZIP 18053 | 2.59 | 46.6 | 7.6% | 9.6% | 3.3% | 1977 | $1,006 | 29.5% | 93.5% | 3.8% |
All figures 2020–24.
Zip codes with similar populations: 85739, AZ · 75215, TX · 36693, AL · 41001, KY · 01721, MA · 44017, OH · 44622, OH · 46816, IN · 53012, WI · 54452, 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 18235. 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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