Seaford, Delaware Demographics & Population 2026
During the 2020–2024 ACS period, Seaford, Delaware had a total population of 8,485, the 13th largest city in Delaware, with a median household income of $54,016, which is 36% lower than the state average. The poverty rate is 18.8%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 36% below the state average, indicating significant economic challenges.
- Unemployment rate of 13.1% is notably above the national average.
Seaford Quick Facts
How Seaford Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 8,255 | 8,485 | +2.8% |
| Median household income | $51,120 | $54,016 | +5.7% |
| Median home value | $223,700 | $224,300 | +0.3% |
How Seaford Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 60 | National average: 61
Education
Educational Attainment (Adults 25+)
Seaford Rankings in Delaware
Explore Delaware Rankings
Other Cities in Sussex County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Milford | 12,803 | $59,464 | 17.2% | $296,900 |
| Georgetown | 7,660 | $49,719 | 16.8% | $281,400 |
| Millsboro | 7,424 | $78,707 | 8.3% | $332,600 |
| Laurel | 4,152 | $48,644 | 34.6% | $230,300 |
| Milton | 3,567 | $80,875 | 5.5% | $407,000 |
| Lewes | 3,505 | $96,393 | 7.9% | $826,100 |
| Selbyville | 3,097 | $75,592 | 4.3% | $432,900 |
| Ocean View | 2,851 | $91,500 | 9.8% | $514,200 |
| Bridgeville | 2,745 | $64,879 | 13.4% | $400,900 |
| Millville | 2,430 | $99,776 | 5.8% | $494,500 |
Cities Similar to Seaford
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Georgetown | 7,660 | $49,719 | $281,400 | 16.0% | 16.8% |
| Claymont | 8,786 | $74,712 | $276,600 | 35.9% | 10.0% |
| Wilmington Manor | 8,214 | $78,078 | $240,600 | 21.5% | 11.6% |
| Millsboro | 7,424 | $78,707 | $332,600 | 34.2% | 8.3% |
| Edgemoor | 6,349 | $59,424 | $290,400 | 37.9% | 17.4% |
Population Overview
Seaford is a small city located in Delaware, within Sussex County. The total population is 8,485. It ranks as the 13th most populous out of 79 Census-designated places in Delaware.
Age Demographics
The median age in Seaford is 41.1 years. This is 1% lower than the state median of 41.6 years.
Economy, Income & Housing
The median household income in Seaford is $54,016. This is 36% lower than the state median of $84,954. It is also 33% lower than the national median of $80,734. The poverty rate stands at 18.8%. This is 80% higher than the state poverty rate of 10.4%. The unemployment rate is 13.1%. This is 156% higher than the state rate of 5.1%. The median home value is $224,300. Housing costs are 36% lower than the state median of $352,000. The home-value-to-income ratio is 4.2x. 49.5% of occupied housing units are owner-occupied. This homeownership rate is 32% lower than the state average of 73.0%.
Race & Ethnicity
The largest racial or ethnic group in Seaford is White (non-Hispanic), making up 49.0% of the population. Black or African American residents account for 22.4%. The Asian population (1.2%) is well below the state average of 4.3%.
Education
15.3% of residents aged 25 and older hold a bachelor's degree or higher. This is 57% lower than the state rate of 35.8%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 79.9%.
Data Sources & Methodology
All demographic data for Seaford, Delaware is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Delaware state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 79 Census-designated places in Delaware. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Seaford, Delaware?
Seaford, Delaware has a population of 8,485 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Seaford, DE?
The median household income in Seaford is $54,016, which is 33% lower than the national median of $80,734.
What is the poverty rate in Seaford, DE?
The poverty rate in Seaford is 18.8%. This means approximately 1,543 residents live below the federal poverty line.
What is the racial makeup of Seaford, Delaware?
Seaford's population is 49.0% White, 22.4% Black, 12.5% Hispanic/Latino, and 1.2% Asian.
What is the median home value in Seaford, DE?
The median home value in Seaford is $224,300. The home-value-to-income ratio is 4.2x.
How educated is Seaford, Delaware?
15.3% of adults (25+) in Seaford hold a bachelor's degree or higher, and 7.1% hold a graduate or professional degree.