Population 110,849 · Census ACS 2020–24
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Population and households in Warren County
Household size in Warren County
| Period | Warren County | Allentown area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 2.60 | 2.55 | 2.77 | 2.68 |
| 2010–14 | 2.59 | 2.60 | 2.82 | 2.73 |
| 2015–19 | 2.52 | 2.57 | 2.78 | 2.71 |
| 2020–24 | 2.45 | 2.56 | 2.76 | 2.65 |
| Change | −0.15 | +0.01 | −0.01 | −0.03 |
The average household in Warren County has 2.45 people, under the U.S. average of 2.65. Household size has dropped from 2.60 in 2006–10, a much bigger shift than nationally. Of New Jersey's 21 counties, only two have smaller households.
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 Warren County
| Period | Warren County | Allentown area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 41.3 | 40.7 | 39.1 | 37.7 |
| 2010–14 | 42.5 | 41.6 | 40.0 | 38.6 |
| 2015–19 | 44.5 | 42.3 | 41.0 | 39.6 |
| 2020–24 | 44.5 | 42.3 | 40.9 | 40.1 |
| Change | +3.2 | +1.6 | +1.8 | +2.3 |
With a median age of 44.5, Warren County is noticeably older than the country as a whole (40.1), an age mix that tilts toward empty nesters and retirees. Since 2006–10, the median age has climbed from 41.3, mirroring the country. Of New Jersey's 21 counties, only two are older.
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 Warren County
| Period | Warren County | Allentown area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 9.6% | 10.8% | 11.6% | 12.3% |
| 2010–14 | 9.1% | 11.0% | 11.8% | 12.3% |
| 2015–19 | 8.4% | 11.4% | 10.8% | 11.6% |
| 2020–24 | 8.3% | 11.5% | 11.3% | 11.6% |
| Change | −1.3 pts | +0.7 pts | −0.4 pts | −0.6 pts |
Single parents head only 8.3% of households in Warren County, well below the national share of 11.6%. The single-parent share is down 1.3 points from 2006–10, mirroring the country. Warren County has a lower share of single-parent households than the great majority of New Jersey counties.
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 Warren County
Renters in Warren County
| Period | Warren County | Allentown area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 24.2% | 26.9% | 33.1% | 33.3% |
| 2010–14 | 26.5% | 29.3% | 35.0% | 35.6% |
| 2015–19 | 28.3% | 31.2% | 36.1% | 36.0% |
| 2020–24 | 24.9% | 30.3% | 36.2% | 34.8% |
| Change | +0.7 pts | +3.4 pts | +3.1 pts | +1.5 pts |
Most households in Warren County own their homes; 24.9% rent, below the national share of 34.8%. Among homeowners, 32.7% have no mortgage at all, below the national share of 39.8%. Rentals cluster in the southwest; owners are most common in the north. The renter share is up 0.7 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 Warren County
| Period | Warren County | Allentown area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 8.3% | 8.0% | 9.1% | 11.4% |
| 2010–14 | 8.9% | 8.6% | 9.3% | 11.4% |
| 2015–19 | 9.5% | 8.3% | 9.3% | 11.1% |
| 2020–24 | 4.1% | 6.5% | 6.6% | 9.6% |
| Change | −4.3 pts | −1.5 pts | −2.5 pts | −1.8 pts |
Only 4.1% of homes in Warren County are vacant, far below the national rate of 9.6%, which usually means strong demand for housing. Vacancy is down 4.3 points from 2006–10, mirroring the country. Few New Jersey counties have a lower vacancy rate: only two of 21.
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 Warren County
| Period | Warren County | Allentown area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 1967 | 1965 | 1965 | 1974 |
| 2010–14 | 1968 | 1967 | 1966 | 1975 |
| 2015–19 | 1971 | 1967 | 1967 | 1977 |
| 2020–24 | 1970 | 1969 | 1969 | 1980 |
| Change | +2 | +3 | +5 | +6 |
Warren County is a place of older homes: half were built before 1970, while the national median is 1980. That means established neighborhoods, and more houses that may need updating. Newer construction is concentrated in the northeast, while the southwest 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 Warren County
| Period | Warren County | Allentown area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | $1,072 | $928 | $1,246 | $965 |
| 2010–14 | $1,145 | $1,020 | $1,324 | $1,040 |
| 2015–19 | $1,277 | $1,170 | $1,522 | $1,213 |
| 2020–24 | $1,595 | $1,504 | $1,896 | $1,571 |
| Change | +$523 | +$576 | +$651 | +$606 |
Rent in Warren County runs $1,595 a month at the median, utilities included, close to the U.S. median of $1,571. Rents here are higher than in the Allentown area as a whole ($1,504). Rents are up $523 a month from 2006–10, a 49% rise, a slower climb than the nation's. The typical renter here spends 29.9% of household income on rent, just under the 30% mark often used to define affordable rent, and a smaller share than renters pay nationally.
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 Warren County
Bachelor's degrees in Warren County
| Period | Warren County | Allentown area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 28.6% | 26.0% | 34.7% | 28.4% |
| 2010–14 | 29.7% | 26.7% | 36.4% | 29.6% |
| 2015–19 | 33.2% | 29.5% | 39.6% | 32.1% |
| 2020–24 | 36.9% | 33.3% | 43.4% | 35.6% |
| Change | +8.3 pts | +7.3 pts | +8.6 pts | +7.2 pts |
More than a third of adults 25 and older in Warren County (36.9%) hold at least a bachelor's degree, close to the national share of 35.6%. The share is higher than in the wider Allentown area (33.3%). The share with a degree has risen 8.3 points since 2006–10, in line with the national trend.
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 Warren County
| Period | Warren County | Allentown area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 89.2% | 86.4% | 87.0% | 84.9% |
| 2010–14 | 90.0% | 88.0% | 88.1% | 86.1% |
| 2015–19 | 91.5% | 89.7% | 89.5% | 87.7% |
| 2020–24 | 93.9% | 91.4% | 90.2% | 89.3% |
| Change | +4.7 pts | +5.0 pts | +3.2 pts | +4.3 pts |
High school completion in Warren County is above the national rate: 93.9% of adults have a diploma, against 89.3%. The share with a diploma has risen 4.7 points since 2006–10, 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 Warren County
| Period | Warren County | Allentown area | New Jersey | U.S. |
|---|---|---|---|---|
| 2006–10 | 6.7% | 7.3% | 7.9% | 8.1% |
| 2010–14 | 9.7% | 9.4% | 9.8% | 9.4% |
| 2015–19 | 5.9% | 5.5% | 5.6% | 5.6% |
| 2020–24 | 5.0% | 5.5% | 6.4% | 5.4% |
| Change | −1.7 pts | −1.8 pts | −1.5 pts | −2.7 pts |
At 5.0%, unemployment in Warren County is close to the national rate of 5.4%. Few New Jersey counties have lower unemployment: only two of 21. Unemployment is down 1.7 points from 2006–10, as it has nationally.
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).
Warren County compared with nearby counties
| County | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Warren County | 2.45 | 44.5 | 8.3% | 24.9% | 4.1% | 1970 | $1,595 | 36.9% | 93.9% | 5.0% |
| Northampton County | 2.54 | 42.9 | 10.2% | 28.9% | 6.2% | 1969 | $1,544 | 34.5% | 92.4% | 4.6% |
| Morris County | 2.71 | 43.4 | 6.0% | 25.7% | 4.3% | 1971 | $2,157 | 58.3% | 95.0% | 5.0% |
| Carbon County | 2.40 | 45.9 | 12.8% | 23.6% | 16.9% | 1965 | $1,079 | 19.0% | 90.7% | 7.7% |
| Union County | 2.95 | 39.6 | 14.7% | 42.6% | 5.6% | 1958 | $1,910 | 38.0% | 85.4% | 6.6% |
| Essex County | 2.75 | 38.5 | 16.2% | 55.1% | 6.4% | 1960 | $1,796 | 38.7% | 86.3% | 8.9% |
| Hudson County | 2.44 | 37.1 | 11.7% | 69.3% | 7.3% | 1968 | $2,049 | 49.0% | 87.9% | 6.2% |
| New York County | 2.08 | 40.4 | 8.9% | 74.9% | 15.4% | 1956 | $2,383 | 64.7% | 89.9% | 8.2% |
| Kings County | 2.78 | 37.5 | 12.5% | 70.5% | 9.1% | 1953 | $1,954 | 40.2% | 83.6% | 8.3% |
| Bronx County | 2.65 | 36.9 | 22.4% | 79.9% | 6.0% | 1958 | $1,512 | 22.3% | 75.0% | 11.7% |
| Queens County | 2.88 | 41.4 | 11.8% | 55.1% | 8.4% | 1955 | $2,042 | 36.1% | 82.3% | 7.2% |
All figures 2020–24.
Counties with similar populations: Wayne County, OH · Wayne County, NC · Carroll County, GA · Adams County, PA · Potter County, TX · Oswego County, NY · Missoula County, MT · Madison County, MS · Macon County, IL · Lycoming County, PA
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 Warren County. 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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