Population 17,497 · Census ACS 2020–24
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Population and households in ZIP 18040
Household size in ZIP 18040
| Period | ZIP 18040 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.65 | 2.55 | 2.51 | 2.68 |
| 2010–14 | 2.74 | 2.60 | 2.53 | 2.73 |
| 2015–19 | 2.69 | 2.57 | 2.50 | 2.71 |
| 2020–24 | 2.61 | 2.56 | 2.46 | 2.65 |
| Change | −0.04 | +0.01 | −0.05 | −0.03 |
Households in ZIP 18040 average 2.61 people, about the same as the country as a whole (2.65). Since 2006–10, household size has edged down from 2.65, as it has nationally. Households are largest in the east and smallest in the center.
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 18040
| Period | ZIP 18040 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 40.9 | 40.7 | 40.3 | 37.7 |
| 2010–14 | 41.7 | 41.6 | 41.0 | 38.6 |
| 2015–19 | 45.8 | 42.3 | 41.8 | 39.6 |
| 2020–24 | 44.6 | 42.3 | 42.0 | 40.1 |
| Change | +3.8 | +1.6 | +1.7 | +2.3 |
With a median age of 44.6, ZIP 18040 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 40.9 in 2006–10, in line with the national trend. Residents skew youngest in the southwest and oldest in the southeast.
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 18040
| Period | ZIP 18040 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.5% | 10.8% | 10.5% | 12.3% |
| 2010–14 | 4.1% | 11.0% | 10.6% | 12.3% |
| 2015–19 | 5.1% | 11.4% | 10.5% | 11.6% |
| 2020–24 | 7.5% | 11.5% | 10.7% | 11.6% |
| Change | +2.0 pts | +0.7 pts | +0.2 pts | −0.6 pts |
Single-parent households are relatively rare in ZIP 18040: 7.5% of households, against 11.6% nationally. Since 2006–10, the single-parent share has risen 2.0 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 18040
Renters in ZIP 18040
| Period | ZIP 18040 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.5% | 26.9% | 29.0% | 33.3% |
| 2010–14 | 9.9% | 29.3% | 30.5% | 35.6% |
| 2015–19 | 9.2% | 31.2% | 31.1% | 36.0% |
| 2020–24 | 9.8% | 30.3% | 30.7% | 34.8% |
| Change | +1.3 pts | +3.4 pts | +1.7 pts | +1.5 pts |
ZIP 18040 is overwhelmingly a place of homeowners: only 9.8% of households rent, far below the national share of 34.8%. Owner-heavy areas like this tend to see less turnover. About a third of owners (33.9%) have paid off their mortgages, below the national share of 39.8%. Of the 628 Pennsylvania ZIP codes with 5,000+ people, only 24 have a lower share of renters.
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 18040
| Period | ZIP 18040 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 4.2% | 8.0% | 10.3% | 11.4% |
| 2010–14 | 5.0% | 8.6% | 10.5% | 11.4% |
| 2015–19 | 4.2% | 8.3% | 10.7% | 11.1% |
| 2020–24 | 3.3% | 6.5% | 9.1% | 9.6% |
| Change | −0.9 pts | −1.5 pts | −1.2 pts | −1.8 pts |
Only 3.3% of homes in ZIP 18040 are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy is down 0.9 points from 2006–10, in line with the national trend. Of the 628 Pennsylvania ZIP codes with 5,000+ people, only 49 have a lower vacancy rate.
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 18040
| Period | ZIP 18040 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 1993 | 1965 | 1963 | 1974 |
| 2010–14 | 1992 | 1967 | 1964 | 1975 |
| 2015–19 | 1993 | 1967 | 1965 | 1977 |
| 2020–24 | 1994 | 1969 | 1967 | 1980 |
| Change | +1 | +3 | +4 | +6 |
ZIP 18040 has newer housing than the country as a whole: the median home was built in 1994, versus 1980 nationally. The newest homes are mostly in the center, the oldest in the southeast. Of the 628 Pennsylvania ZIP codes with 5,000+ people, only nine have newer homes.
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 18040
| Period | ZIP 18040 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,250 | $928 | $829 | $965 |
| 2010–14 | $1,146 | $1,020 | $923 | $1,040 |
| 2015–19 | $1,419 | $1,170 | $1,039 | $1,213 |
| 2020–24 | $1,458 | $1,504 | $1,323 | $1,571 |
| Change | +$208 | +$576 | +$494 | +$606 |
A typical rental in ZIP 18040 costs $1,458 a month with utilities, below the national median of $1,571. Rents are up $208 a month from 2006–10, a 17% rise, a slower climb than the nation's. Rent takes 27.7% of the typical renter's income, just under the 30% mark often used to define affordable rent. Renters on a budget will find the lowest rents in the west; the highest are in the east.
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 18040
Bachelor's degrees in ZIP 18040
| Period | ZIP 18040 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 38.8% | 26.0% | 27.2% | 28.4% |
| 2010–14 | 37.9% | 26.7% | 28.7% | 29.6% |
| 2015–19 | 42.3% | 29.5% | 31.8% | 32.1% |
| 2020–24 | 41.4% | 33.3% | 35.6% | 35.6% |
| Change | +2.7 pts | +7.3 pts | +8.3 pts | +7.2 pts |
Just over four in ten adults 25 and older in ZIP 18040 (41.4%) have a bachelor's degree or higher, a bit above the national share of 35.6%. The share with a degree is up 2.7 points from 2006–10, in line with the national trend. College graduates are most concentrated in the center 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 18040
| Period | ZIP 18040 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 94.4% | 86.4% | 87.3% | 84.9% |
| 2010–14 | 93.6% | 88.0% | 88.8% | 86.1% |
| 2015–19 | 96.2% | 89.7% | 90.3% | 87.7% |
| 2020–24 | 92.5% | 91.4% | 91.8% | 89.3% |
| Change | −1.9 pts | +5.0 pts | +4.5 pts | +4.3 pts |
High school completion in ZIP 18040 is a bit above the national rate: 92.5% of adults have a diploma or equivalent, against 89.3%. The Allentown area as a whole looks much the same. The share with a diploma is down 1.9 points from 2006–10, even as the national rate rose.
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 18040
| Period | ZIP 18040 | Allentown area | Pennsylvania | U.S. |
|---|---|---|---|---|
| 2006–10 | 5.3% | 7.3% | 7.5% | 8.1% |
| 2010–14 | 8.2% | 9.4% | 8.8% | 9.4% |
| 2015–19 | 4.1% | 5.5% | 5.5% | 5.6% |
| 2020–24 | 3.4% | 5.5% | 5.4% | 5.4% |
| Change | −1.9 pts | −1.8 pts | −2.1 pts | −2.7 pts |
Jobs have been easier to find in ZIP 18040 than nationally: unemployment was 3.4%, against 5.4%. Unemployment has fallen 1.9 points since 2006–10, as it has nationally. 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 18040 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 18040 | 2.61 | 44.6 | 7.5% | 9.8% | 3.3% | 1994 | $1,458 | 41.4% | 92.5% | 3.4% |
| ZIP 18085 | 3.24 | 38.5 | 11.3% | 24.1% | 3.0% | 1968 | $1,647 | 37.1% | 98.3% | 5.6% |
| ZIP 18083 | 2.64 | 38.8 | 6.5% | 14.3% | 7.3% | 1948 | $1,182 | 32.3% | 96.2% | 2.8% |
| ZIP 18042 | 2.51 | 36.5 | 17.7% | 45.3% | 11.2% | 1948 | $1,450 | 30.0% | 89.0% | 5.3% |
| ZIP 08865 | 2.35 | 42.8 | 11.0% | 31.0% | 4.2% | 1958 | $1,461 | 29.9% | 92.0% | 5.6% |
| ZIP 18045 | 2.53 | 45.7 | 8.9% | 17.6% | 4.1% | 1982 | $1,880 | 45.1% | 96.0% | 3.7% |
| ZIP 18063 | 2.53 | 56.9 | 1.4% | 24.8% | 12.8% | 1958 | $1,227 | 19.5% | 92.1% | 6.7% |
| ZIP 18064 | 2.67 | 45.5 | 9.6% | 24.7% | 3.6% | 1981 | $1,632 | 38.7% | 94.3% | 2.4% |
| ZIP 08886 | 2.94 | 42.3 | 5.0% | 6.0% | 2.3% | 1990 | $2,179 | 49.0% | 97.3% | 4.9% |
| ZIP 18020 | 2.56 | 43.7 | 6.5% | 17.7% | 2.9% | 1986 | $1,573 | 43.7% | 95.5% | 3.8% |
| ZIP 18091 | 2.44 | 47.3 | 6.5% | 34.4% | 3.1% | 1973 | $1,455 | 30.9% | 91.1% | 4.6% |
All figures 2020–24.
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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 18040. 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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