Population 24,048 · Census ACS 2020–24
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Population and households in Seaford
Household size in Seaford
| Period | Seaford | Delaware | U.S. |
|---|---|---|---|
| 2006–10 | 2.59 | 2.63 | 2.68 |
| 2010–14 | 2.64 | 2.68 | 2.73 |
| 2015–19 | 2.56 | 2.62 | 2.71 |
| 2020–24 | 2.57 | 2.58 | 2.65 |
| Change | −0.03 | −0.05 | −0.03 |
The average household in Seaford has 2.57 people, a bit under the U.S. average of 2.65. That is in line with the rest of Delaware. The biggest households, usually families with children, are concentrated 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 Seaford
| Period | Seaford | Delaware | U.S. |
|---|---|---|---|
| 2006–10 | 41.2 | 39.4 | 37.7 |
| 2010–14 | 42.3 | 40.5 | 38.6 |
| 2015–19 | 43.6 | 41.8 | 39.6 |
| 2020–24 | 42.3 | 43.0 | 40.1 |
| Change | +1.2 | +3.6 | +2.3 |
The median resident of Seaford is 42.3 years old, a bit older than the national median of 40.1. Since 2006–10, the median age has climbed from 41.2, in line with the national trend. Residents skew youngest in the north and oldest in the center.
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 Seaford
| Period | Seaford | Delaware | U.S. |
|---|---|---|---|
| 2006–10 | 14.1% | 12.9% | 12.3% |
| 2010–14 | 17.8% | 12.4% | 12.3% |
| 2015–19 | 10.8% | 11.2% | 11.6% |
| 2020–24 | 13.8% | 12.3% | 11.6% |
| Change | −0.3 pts | −0.6 pts | −0.6 pts |
Single-parent households are more common in Seaford than nationally: 13.8%, against 11.6%. Seaford has a higher share of single-parent households than most Delaware cities.
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 Seaford
Renters in Seaford
| Period | Seaford | Delaware | U.S. |
|---|---|---|---|
| 2006–10 | 28.9% | 26.4% | 33.3% |
| 2010–14 | 30.7% | 28.4% | 35.6% |
| 2015–19 | 26.5% | 28.8% | 36.0% |
| 2020–24 | 28.9% | 27.0% | 34.8% |
| Change | −0.1 pts | +0.6 pts | +1.5 pts |
Nearly three in ten households in Seaford rent their homes (28.9%), a little below the national share of 34.8%; the rest own. Among homeowners, 35.8% have no mortgage at all, below the national share of 39.8%. Renting is most common in the center and least common in the northwest.
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 Seaford
| Period | Seaford | Delaware | U.S. |
|---|---|---|---|
| 2006–10 | 12.5% | 12.8% | 11.4% |
| 2010–14 | 12.2% | 13.0% | 11.4% |
| 2015–19 | 9.8% | 11.7% | 11.1% |
| 2020–24 | 7.7% | 9.6% | 9.6% |
| Change | −4.8 pts | −3.3 pts | −1.8 pts |
Vacancy is on the low side in Seaford: 7.7% of homes sit empty, against 9.6% nationally, which points to steady demand for housing. Vacancy is down 4.8 points from 2006–10, mirroring the country.
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 Seaford
| Period | Seaford | Delaware | U.S. |
|---|---|---|---|
| 2006–10 | 1977 | 1979 | 1974 |
| 2010–14 | 1981 | 1980 | 1975 |
| 2015–19 | 1984 | 1982 | 1977 |
| 2020–24 | 1987 | 1984 | 1980 |
| Change | +9 | +6 | +6 |
The housing in Seaford is younger than the country's: half of it was built after 1987, against 1980 nationally. The median year built has moved up from 1977 in 2006–10, a sign of steady new building. The newest homes are mostly in the northwest, 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 Seaford
| Period | Seaford | Delaware | U.S. |
|---|---|---|---|
| 2006–10 | $753 | $1,037 | $965 |
| 2010–14 | $847 | $1,109 | $1,040 |
| 2015–19 | $902 | $1,228 | $1,213 |
| 2020–24 | $1,160 | $1,514 | $1,571 |
| Change | +$407 | +$477 | +$606 |
Rent in Seaford runs $1,160 a month at the median, utilities included, well below the U.S. median of $1,571. Rent has climbed $407 a month since 2006–10, up 54%, a slower climb than the nation's. The typical renter here spends 35.0% of household income on rent, well over the 30% mark often used to define affordable rent, so many renters here are stretched. Rents run highest in the center and lowest in the southeast.
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 Seaford
Bachelor's degrees in Seaford
| Period | Seaford | Delaware | U.S. |
|---|---|---|---|
| 2006–10 | 16.5% | 27.4% | 28.4% |
| 2010–14 | 16.0% | 29.2% | 29.6% |
| 2015–19 | 17.6% | 31.9% | 32.1% |
| 2020–24 | 19.0% | 35.5% | 35.6% |
| Change | +2.5 pts | +8.0 pts | +7.2 pts |
Fewer adults in Seaford have a four-year degree than in the country as a whole: 19.0%, against 35.6% nationally. Since 2006–10, the share with a degree has risen 2.5 points, in line with the national trend. Seaford has a lower share of college graduates than the great majority of Delaware cities.
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 Seaford
| Period | Seaford | Delaware | U.S. |
|---|---|---|---|
| 2006–10 | 84.0% | 87.2% | 84.9% |
| 2010–14 | 82.2% | 88.1% | 86.1% |
| 2015–19 | 83.3% | 90.0% | 87.7% |
| 2020–24 | 84.3% | 91.5% | 89.3% |
| Change | +0.3 pts | +4.4 pts | +4.3 pts |
Nearly one in six adults in Seaford never finished high school, more than nationally: 84.3% have a diploma or equivalent, against 89.3% across the U.S. Seaford has a lower share of high school graduates than the great majority of Delaware cities.
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 Seaford
| Period | Seaford | Delaware | U.S. |
|---|---|---|---|
| 2006–10 | 7.7% | 7.2% | 8.1% |
| 2010–14 | 7.6% | 8.5% | 9.4% |
| 2015–19 | 5.7% | 5.4% | 5.6% |
| 2020–24 | 9.4% | 5.1% | 5.4% |
| Change | +1.6 pts | −2.1 pts | −2.7 pts |
Unemployment in Seaford runs well above the national rate: 9.4% of the labor force was out of work and looking, against 5.4%. Seaford has the highest unemployment rate of any Delaware city with 5,000+ people. Unemployment is up 1.6 points from 2006–10, even as the national rate fell.
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).
Seaford compared with nearby cities
| City | Household size | Median age | Single parents | Renters | Vacant homes | Median year built | Median rent | Bachelor's degree | High school diploma | Unemployment |
|---|---|---|---|---|---|---|---|---|---|---|
| Seaford | 2.57 | 42.3 | 13.8% | 28.9% | 7.7% | 1987 | $1,160 | 19.0% | 84.3% | 9.4% |
| Blades | 2.80 | 41.1 | 12.5% | 19.3% | 6.8% | 1986 | $1,088 | 12.3% | 88.5% | 7.5% |
| Concord | 3.19 | 33.7 | 8.4% | 11.8% | 3.3% | 1998 | $881 | 19.3% | 94.4% | 10.8% |
| Woodland | 2.59 | 43.4 | 2.1% | 6.9% | 9.6% | 1995 | $1,451 | 16.4% | 94.9% | 0.3% |
| Bethel | 2.73 | 43.7 | 0.9% | 5.9% | 11.2% | 1988 | $898 | 16.4% | 88.7% | 0.6% |
| Bridgeville | 2.61 | 41.2 | 19.0% | 23.0% | 8.0% | 1994 | $1,320 | 19.1% | 82.1% | 4.0% |
| Laurel | 2.61 | 41.2 | 19.8% | 34.0% | 6.7% | 1985 | $1,073 | 14.2% | 86.2% | 7.7% |
| Hardscrabble | 2.88 | 38.6 | 14.8% | 20.6% | 8.1% | 2000 | $1,121 | 17.1% | 85.6% | 4.0% |
| Coverdale Crossroads | 3.03 | 32.8 | 21.1% | 19.6% | 7.0% | 1996 | $1,007 | 15.6% | 80.1% | 5.3% |
| Portsville | 2.41 | 45.7 | 3.5% | 20.9% | 11.5% | 1995 | $916 | 11.4% | 93.7% | 0.7% |
| Sycamore | 2.65 | 45.3 | 5.8% | 22.9% | 4.3% | 2001 | $1,755 | 28.4% | 90.8% | 0.8% |
All figures 2020–24.
Cities with similar populations: Republic, MO · Mckees Rocks, PA · Merchantville, NJ · Merrick, NY · Middletown, PA · Minneola, FL · Monroe, NY · Monroe, WA · Oldsmar, FL · Pascagoula, MS
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 Seaford. 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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