Census-designated place · Delaware
Long Neck, Delaware
Long Neck, census-designated place, in Sussex County, Delaware. Long Neck had 3,017 residents in the 2020 Census, a full count; the ACS 2020-2024 5-year estimates put it at 2,161 (±367). GEOID 1043245.
Residents, 2020 Census
3,017
Census count or controlled total
ACS 2020-2024 estimate: 2,161 ±367
Median household income
$56,745
±$10,156 (90% margin)
Delaware: $84,954
Median home value
$187,600
±$15,537 (90% margin)
Delaware: $352,000
Median gross rent
$1,025
±$525 (90% margin)
Delaware: $1,401
Where is Long Neck and what county is it in?
Long Neck is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in Sussex County, Delaware. It covers 2.8 square miles of land, 1,094 residents per square mile in 2020.
Long Neck is in the Seaford, DE micropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Long Neck, and is it growing?
The 2020 Census counted 3,017 residents in Long Neck, a full count rather than a sample. The 2020-2024 American Community Survey, a sample, estimates 2,161 (±367).
The Census Bureau publishes yearly population estimates for incorporated places only; Long Neck is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | Long Neck | Sussex County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 2,161 ±367 | 255,626 | no clear change |
| Households | 1,235 ±207 | 106,441 | no clear change |
| Average household size | 1.75 ±0.13 | 2.38 | −0.42 |
| Housing units | 2,298 ±288 | 151,799 | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Long Neck?
The median resident of Long Neck is 67.1 years old; 7.1% are under 18 and 56.3% are 65 or older. The largest group is non-Hispanic white residents at 90.2%, then non-Hispanic Black residents at 4.4%.
| Measure | Long Neck | Sussex County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 67.1 ±2.3 | 51.9 | +6.7 |
| Under 18 years | 7.1% ±3.2 pts | 18.1% | – |
| 65 years and over | 56.3% ±7.3 pts | 30.2% | – |
| Male | 40.8% ±4.6 pts | 48.5% | – |
| Hispanic or Latino (any race) | 1.7% ±2.3 pts | 11.5% | – |
| White alone, not Hispanic | 90.2% ±5.3 pts | 72.3% | no clear change |
| Black or African American alone, not Hispanic | 4.4% ±3.9 pts | 9.8% | – |
| Asian alone, not Hispanic | 1.9% ±2.3 pts | 1.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.7 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.7 pts | 0.0% | – |
| Two or more races, not Hispanic | 1.8% ±2.5 pts | 4.4% | – |
| Some other race alone, not Hispanic | 0.0% ±1.7 pts | 0.5% | – |
| Born outside the United States | 2.4% ±2.4 pts | 8.4% | – |
| Speak a language other than English at home (age 5+) | 0.8% ±1.1 pts | 13.0% | – |
| Civilian veterans (age 18+) | 13.1% ±4.4 pts | 8.5% | – |
| With a disability | 25.9% ±6.5 pts | 14.9% | – |
| No health insurance coverage | 2.3% ±1.9 pts | 7.0% | – |
| High school graduate or higher (age 25+) | 97.0% ±2.6 pts | 90.2% | – |
| Bachelor's degree or higher (age 25+) | 17.3% ±5.6 pts | 33.0% | no clear change |
| Graduate or professional degree (age 25+) | 7.5% ±4.5 pts | 14.1% | – |
| Lived in the same house a year earlier | 94.7% ±3.6 pts | 90.0% | – |
| Moved from another state in the past year | 2.7% ±2.6 pts | 4.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Long Neck earn?
Half of Long Neck's 1,235 households earn less than $56,745 a year (±$10,156), against $81,497 in Sussex County and $84,954 in Delaware. In 2015-2019 the median was $72,244 in 2024 dollars, so it fell by $15,499 after inflation. 10.2% of residents live below the poverty line.
| Measure | Long Neck | Sussex County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $56,745 ±$10,156 | $81,497 | −$15,499 |
| Mean household income | $76,581 ±$10,983 | $109,282 | – |
| Per capita income | $44,986 ±$5,705 | $46,684 | +$9,349 |
| People below the poverty line | 10.2% ±5.1 pts | 10.9% | no clear change |
| Children under 18 below the poverty line | 41.2% ±33.1 pts | 18.9% | – |
| Households receiving SNAP | 5.5% ±3.7 pts | 10.6% | – |
| Households with a computer | 95.9% ±3.2 pts | 95.7% | – |
| Households with a broadband subscription | 95.0% ±3.1 pts | 91.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Long Neck?
Owners occupy 92.1% of Long Neck's occupied homes and renters 7.9%. The median owner-occupied home is valued at $187,600 by its owner (±$15,537). The median renter pays $1,025 a month including utilities, and 67.9% of renters pay 35% or more of their income on rent.
| Measure | Long Neck | Sussex County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $187,600 ±$15,537 | $382,600 | +$97,882 |
| Median gross rent | $1,025 ±$525 | $1,238 | −$655 |
| Renters paying 35% or more of income on rent | 67.9% ±34.8 pts | 42.8% | – |
| Median monthly owner costs, with a mortgage | $1,806 ±$459 | $1,736 | – |
| Owner-occupied homes | 92.1% ±4.2 pts | 81.6% | no clear change |
| Renter-occupied homes | 7.9% ±4.2 pts | 18.4% | – |
| Housing units | 2,298 ±288 | 151,799 | no clear change |
| Homeowner vacancy rate | 6.0% ±5.6 pts | 1.3% | – |
| Rental vacancy rate | 0.0% ±30.7 pts | 6.6% | – |
| Single-family detached homes | 21.9% ±6.0 pts | 65.4% | – |
| Mobile homes | 71.1% ±7.6 pts | 12.8% | – |
| Built 2020 or later | 0.9% ±1.2 pts | 6.1% | – |
| Built 2010 to 2019 | 6.5% ±3.7 pts | 19.2% | – |
| Built 1939 or earlier | 0.6% ±1.0 pts | 4.4% | – |
| Households with no vehicle | 3.6% ±3.8 pts | 3.3% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Long Neck work and get to work?
76.3% of Long Neck's workers drive alone. The average trip to work takes 23.7 minutes.
| Measure | Long Neck | Sussex County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 38.2% ±7.3 pts | 54.1% | – |
| Unemployment rate | 1.9% ±2.5 pts | 5.3% | – |
| Drove alone to work | 76.3% ±11.1 pts | 75.4% | – |
| Carpooled | 6.9% ±5.4 pts | 8.0% | – |
| Public transportation | 0.0% ±4.8 pts | 0.5% | – |
| Walked | 0.0% ±4.8 pts | 1.3% | – |
| Worked from home | 15.3% ±10.2 pts | 13.4% | – |
| Mean travel time to work | 23.7 min ±5.7 | 27.3 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Long Neck?
2 census tracts lie mostly in Long Neck, and 1 more reaches into it (2020 census blocks). Their median household incomes run from $61,851 (Tract 507.07) to $73,906 (Tract 507.06).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 507.07Sussex County | 2,118 | $61,851 |
| Tract 507.06Sussex County | 1,634 | $73,906 |
| Tract 507.08Sussex County | 3,845 | $84,256 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Long Neck) · Census block assignment files
How does Long Neck compare with other places in Delaware?
Long Neck ranks 47th of 51 places in Delaware with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 41st | 51 |
| Residents per square mile | 39th | 51 |
| Median household income | 47th | 51 |
| Per capita income | 18th | 51 |
| Median home value | 49th | 50 |
| Median gross rent | 42nd | 47 |
| Poverty rate | 16th | 33 |
| Bachelor's degree or higher | 46th | 50 |
| Median age | 2nd | 51 |
| Owner-occupied share | 7th | 50 |
| Travel time to work | 33rd | 51 |
Long Neck's figures with every place in Delaware (CSV)
Every place in Delaware, sortable · Compare Long Neck with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Long Neck?
23 of the 57 figures for Long Neck on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Long Neck are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.