Census tract · Sussex County
Census Tract 506.03, Sussex County, Delaware
Census Tract 506.03, GEOID 10005050603, in Sussex County, Delaware, mostly within Millsboro (68% of its census blocks). 3,717 residents in the ACS 2020-2024 5-year estimates (±486); the 2020 Census counted 3,956.
Residents, 2020-2024
3,717
±486 (90% margin)
2020 Census count: 3,956
Median household income
$79,375
±$9,913 (90% margin)
Sussex County: $81,497
Median home value
$365,200
±$29,651 (90% margin)
Sussex County: $382,600
Median gross rent
$1,328
±$327 (90% margin)
Sussex County: $1,238
Where is Census Tract 506.03?
Census Tract 506.03 is one of 75 census tracts in Sussex County, Delaware. It covers 2.00 square miles of land, 1,980 residents per square mile in 2020. Its GEOID, 10005050603, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Millsboro | 68% |
2 census tracts border Census Tract 506.03: Tract 506.01 ($68,588) and Tract 506.04 ($77,930). The figure in brackets is each tract's median household income.
Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.
Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files
How many people live in Census Tract 506.03?
The 2020-2024 American Community Survey puts Census Tract 506.03's population at 3,717 (±486) in 1,515 households; the 2020 Census counted 3,956 residents and 1,754 housing units.
| Measure | Tract 506.03 | Millsboro |
|---|---|---|
| Total population | 3,717 ±486 | 7,424 |
| Households | 1,515 ±229 | 3,276 |
| Average household size | 2.32 ±0.22 | 2.20 |
| Housing units | 1,642 ±230 | 3,554 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Census Tract 506.03?
The median resident of Census Tract 506.03 is 41.9 years old; 18.3% are under 18 and 27.7% are 65 or older. The largest group is non-Hispanic white residents at 63.3%, then non-Hispanic Black residents at 14.8%. 13.2% of residents were born outside the United States.
| Measure | Tract 506.03 | Millsboro |
|---|---|---|
| Median age | 41.9 ±7.1 | 39.5 |
| Under 18 years | 18.3% ±4.3 pts | 20.1% |
| 65 years and over | 27.7% ±4.3 pts | 24.9% |
| Hispanic or Latino (any race) | 7.6% ±5.4 pts | 10.4% |
| White alone, not Hispanic | 63.3% ±7.6 pts | 62.3% |
| Black or African American alone, not Hispanic | 14.8% ±3.9 pts | 16.8% |
| Asian alone, not Hispanic | 3.7% ±3.3 pts | 3.6% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.0 pts | 0.4% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.0 pts | 0.0% |
| Two or more races, not Hispanic | 10.6% ±5.5 pts | 6.6% |
| Some other race alone, not Hispanic | 0.0% ±1.0 pts | 0.0% |
| Born outside the United States | 13.2% ±4.9 pts | 12.6% |
| Speak a language other than English at home (age 5+) | 14.7% ±6.3 pts | 15.9% |
| Civilian veterans (age 18+) | 9.6% ±2.9 pts | 7.5% |
| With a disability | 14.1% ±4.3 pts | 11.7% |
| No health insurance coverage | 5.9% ±4.2 pts | 6.5% |
| High school graduate or higher (age 25+) | 95.2% ±3.8 pts | 92.4% |
| Bachelor's degree or higher (age 25+) | 36.5% ±6.8 pts | 34.2% |
| Graduate or professional degree (age 25+) | 13.2% ±5.1 pts | 11.8% |
| Lived in the same house a year earlier | 83.4% ±6.8 pts | 85.5% |
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 Census Tract 506.03 earn?
Half of the 1,515 households in Census Tract 506.03 earn less than $79,375 a year (±$9,913), against $81,497 across Sussex County: 41st highest of the county's 73 tracts with a reliable estimate. 3.8% of residents live below the poverty line.
| Measure | Tract 506.03 | Millsboro |
|---|---|---|
| Median household income | $79,375 ±$9,913 | $78,707 |
| Mean household income | $92,690 ±$12,394 | $87,642 |
| Per capita income | $39,286 ±$4,763 | $40,274 |
| People below the poverty line | 3.8% ±2.1 pts | 8.3% |
| Children under 18 below the poverty line | 0.0% ±5.5 pts | 13.6% |
| Households receiving SNAP | 7.0% ±5.9 pts | 9.0% |
| Households with a computer | 95.2% ±4.6 pts | 94.4% |
| Households with a broadband subscription | 90.3% ±6.9 pts | 88.0% |
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 Census Tract 506.03?
Owners occupy 73.3% of Census Tract 506.03's occupied homes and renters 26.7%. The median owner-occupied home is valued at $365,200 by its owner (±$29,651). The median renter pays $1,328 a month including utilities, and 33.8% of renters pay 35% or more of their income on rent.
| Measure | Tract 506.03 | Millsboro |
|---|---|---|
| Median home value (owner-occupied) | $365,200 ±$29,651 | $332,600 |
| Median gross rent | $1,328 ±$327 | $1,277 |
| Renters paying 35% or more of income on rent | 33.8% ±21.0 pts | 26.9% |
| Median monthly owner costs, with a mortgage | $1,809 ±$226 | $1,628 |
| Owner-occupied homes | 73.3% ±9.5 pts | 67.8% |
| Renter-occupied homes | 26.7% ±9.5 pts | 32.2% |
| Housing units | 1,642 ±230 | 3,554 |
| Single-family detached homes | 41.5% ±9.4 pts | 32.0% |
| Mobile homes | 0.0% ±2.3 pts | 5.4% |
| Built 2020 or later | 9.0% ±4.1 pts | 17.6% |
| Built 2010 to 2019 | 47.6% ±8.8 pts | 38.9% |
| Built 1939 or earlier | 1.9% ±2.0 pts | 1.4% |
| Households with no vehicle | 3.0% ±4.0 pts | 3.1% |
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 Census Tract 506.03 get to work?
77.3% of Census Tract 506.03's workers drive alone. The average trip to work takes 26.9 minutes.
| Measure | Tract 506.03 | Millsboro |
|---|---|---|
| In the labor force (age 16+) | 59.5% ±5.5 pts | 61.5% |
| Unemployment rate | 2.7% ±2.2 pts | 2.9% |
| Drove alone to work | 77.3% ±9.1 pts | 75.4% |
| Carpooled | 6.9% ±4.0 pts | 7.0% |
| Public transportation | 3.5% ±5.0 pts | 1.7% |
| Walked | 0.0% ±2.3 pts | 1.3% |
| Worked from home | 11.7% ±8.0 pts | 14.1% |
| Mean travel time to work | 26.9 min ±4.0 | 33.0 min |
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
How does Census Tract 506.03 compare with the other tracts in Sussex County?
Among Sussex County's tracts with a reliable estimate, Census Tract 506.03 ranks as shown below (1 = highest).
| Measure | In Sussex County | In Millsboro |
|---|---|---|
| Population | 35th of 73 | 3rd of 3 |
| Residents per square mile | 1st of 74 | 1st of 3 |
| Median household income | 41st of 73 | 1st of 3 |
| Per capita income | 45th of 73 | 1st of 3 |
| Median home value | 39th of 73 | 1st of 3 |
| Median gross rent | 25th of 58 | 2nd of 3 |
| Poverty rate | 43rd of 49 | 2nd of 2 |
| Bachelor's degree or higher | 38th of 72 | 1st of 3 |
| Median age | 54th of 73 | 2nd of 3 |
| Owner-occupied share | 63rd of 73 | 2nd of 3 |
The tracts next to it on Sussex County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 505.01 | 38th | $82,328±$2,990 · within the margin of this tract |
| Tract 507.01 | 39th | $82,198±$7,327 · within the margin of this tract |
| Tract 510.12 | 40th | $81,346±$25,483 · within the margin of this tract |
| Tract 506.03 | 41st | $79,375±$9,913 |
| Tract 515.01 | 42nd | $78,750±$21,144 · within the margin of this tract |
| Tract 517.01 | 43rd | $78,194±$31,794 · within the margin of this tract |
| Tract 506.04 | 44th | $77,930±$14,608 · within the margin of this tract |
"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed
How reliable are the figures for Census Tract 506.03?
3 of the 18 figures for Census Tract 506.03 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.
A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). 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 · Check it at data.census.gov
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections