Census tract · Nassau County
Census Tract 5185.01, Nassau County, New York
Census Tract 5185.01, GEOID 36059518501, in Nassau County, New York, entirely within Oyster Bay (town). 6,418 residents in the ACS 2020-2024 5-year estimates (±842); the 2020 Census counted 7,332.
Residents, 2020-2024
6,418
±842 (90% margin)
2020 Census count: 7,332
Median household income
$155,682
±$48,530 (90% margin)
Nassau County: $146,202
Median home value
$932,800
±$35,679 (90% margin)
Nassau County: $684,700
Median gross rent
$3,500 or more
The survey's top or bottom value; no margin is published
Nassau County: $2,252
Where is Census Tract 5185.01?
Census Tract 5185.01 is one of 286 census tracts in Nassau County, New York. It covers 2.61 square miles of land, 2,808 residents per square mile in 2020. Its GEOID, 36059518501, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Oyster Bay (town) | 100% |
| Jericho | 94% |
| Old Westbury | 6% |
9 census tracts border Census Tract 5185.01: Tract 3025.02 ($250,000 or more), Tract 3039 ($172,105), Tract 3042.02 ($148,708), Tract 5177.01 ($246,583), Tract 5177.05 ($250,000 or more), Tract 5185.02 ($125,547), Tract 5186 ($196,250), Tract 5189 ($141,199) and Tract 9821*. The figure in brackets is each tract's median household income; * a special land-use tract (water, a park or an institution) with few or no residents.
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 5185.01?
The 2020-2024 American Community Survey puts Census Tract 5185.01's population at 6,418 (±842) in 2,044 households; the 2020 Census counted 7,332 residents and 2,436 housing units.
| Measure | Tract 5185.01 | Oyster Bay (town) |
|---|---|---|
| Total population | 6,418 ±842 | 299,509 |
| Households | 2,044 ±205 | 100,559 |
| Average household size | 3.01 ±0.31 | 2.93 |
| Housing units | 2,172 ±183 | 103,686 |
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 5185.01?
The median resident of Census Tract 5185.01 is 46.2 years old; 23.6% are under 18 and 26.7% are 65 or older. The largest group is non-Hispanic Asian residents at 58.0%, then non-Hispanic white residents at 31.8%. 45.3% of residents were born outside the United States.
| Measure | Tract 5185.01 | Oyster Bay (town) |
|---|---|---|
| Median age | 46.2 ±2.7 | 44.3 |
| Under 18 years | 23.6% ±3.6 pts | 21.2% |
| 65 years and over | 26.7% ±5.4 pts | 20.3% |
| Hispanic or Latino (any race) | 1.1% ±1.4 pts | 11.3% |
| White alone, not Hispanic | 31.8% ±7.8 pts | 67.7% |
| Black or African American alone, not Hispanic | 3.5% ±3.1 pts | 2.4% |
| Asian alone, not Hispanic | 58.0% ±8.9 pts | 15.5% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.7 pts | 0.0% |
| Two or more races, not Hispanic | 5.0% ±4.0 pts | 2.2% |
| Some other race alone, not Hispanic | 0.7% ±1.1 pts | 0.8% |
| Born outside the United States | 45.3% ±6.0 pts | 17.4% |
| Speak a language other than English at home (age 5+) | 48.7% ±8.9 pts | 24.5% |
| Civilian veterans (age 18+) | 4.3% ±3.5 pts | 3.1% |
| With a disability | 10.9% ±3.7 pts | 9.7% |
| No health insurance coverage | 3.6% ±2.0 pts | 3.0% |
| High school graduate or higher (age 25+) | 94.9% ±2.7 pts | 94.6% |
| Bachelor's degree or higher (age 25+) | 77.0% ±5.8 pts | 55.6% |
| Graduate or professional degree (age 25+) | 48.6% ±6.7 pts | 26.5% |
| Lived in the same house a year earlier | 94.9% ±3.1 pts | 93.3% |
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 5185.01 earn?
Half of the 2,044 households in Census Tract 5185.01 earn less than $155,682 a year (±$48,530), against $146,202 across Nassau County: 122nd highest of the county's 278 tracts with a reliable estimate. 5.3% of residents live below the poverty line.
| Measure | Tract 5185.01 | Oyster Bay (town) |
|---|---|---|
| Median household income | $155,682 ±$48,530 | $160,126 |
| Mean household income | $243,593 ±$39,629 | $213,735 |
| Per capita income | $83,276 ±$11,771 | $73,188 |
| People below the poverty line | 5.3% ±3.1 pts | 3.9% |
| Children under 18 below the poverty line | 2.0% ±2.6 pts | 2.7% |
| Households receiving SNAP | 1.4% ±1.8 pts | 3.0% |
| Households with a computer | 98.5% ±2.3 pts | 96.6% |
| Households with a broadband subscription | 97.2% ±3.1 pts | 95.1% |
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 5185.01?
Owners occupy 78.8% of Census Tract 5185.01's occupied homes and renters 21.2%. The median owner-occupied home is valued at $932,800 by its owner (±$35,679). The median renter pays $3,500 or more a month including utilities, and 76.7% of renters pay 35% or more of their income on rent.
| Measure | Tract 5185.01 | Oyster Bay (town) |
|---|---|---|
| Median home value (owner-occupied) | $932,800 ±$35,679 | $708,600 |
| Median gross rent | $3,500 or more | $2,572 |
| Renters paying 35% or more of income on rent | 76.7% ±15.4 pts | 44.8% |
| Median monthly owner costs, with a mortgage | $4,000 or more | $3,910 |
| Owner-occupied homes | 78.8% ±7.2 pts | 89.1% |
| Renter-occupied homes | 21.2% ±7.2 pts | 10.9% |
| Housing units | 2,172 ±183 | 103,686 |
| Single-family detached homes | 54.7% ±7.2 pts | 86.0% |
| Mobile homes | 1.8% ±3.0 pts | 0.2% |
| Built 2020 or later | 1.1% ±1.9 pts | 0.8% |
| Built 2010 to 2019 | 13.1% ±6.8 pts | 3.3% |
| Built 1939 or earlier | 2.7% ±3.2 pts | 9.5% |
| Households with no vehicle | 11.1% ±5.7 pts | 4.5% |
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 5185.01 get to work?
48.1% of Census Tract 5185.01's workers drive alone and 20.8% work from home. The average trip to work takes 44.3 minutes.
| Measure | Tract 5185.01 | Oyster Bay (town) |
|---|---|---|
| In the labor force (age 16+) | 51.2% ±6.5 pts | 63.4% |
| Unemployment rate | 2.5% ±2.4 pts | 4.6% |
| Drove alone to work | 48.1% ±11.1 pts | 62.9% |
| Carpooled | 8.8% ±5.8 pts | 6.2% |
| Public transportation | 21.6% ±6.5 pts | 10.0% |
| Walked | 0.0% ±1.7 pts | 1.6% |
| Worked from home | 20.8% ±7.6 pts | 18.0% |
| Mean travel time to work | 44.3 min ±5.6 | 34.9 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 5185.01 compare with the other tracts in Nassau County?
Among Nassau County's tracts with a reliable estimate, Census Tract 5185.01 ranks as shown below (1 = highest).
| Measure | In Nassau County |
|---|---|
| Population | 52nd of 281 |
| Residents per square mile | 253rd of 281 |
| Median household income | 122nd of 278 |
| Per capita income | 47th of 280 |
| Median home value | 44th of 278 |
| Median gross rent | 1st of 205 |
| Poverty rate | 57th of 107 |
| Bachelor's degree or higher | 16th of 278 |
| Median age | 49th of 281 |
| Owner-occupied share | 199th of 276 |
The tracts next to it on Nassau County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 4164.02 | 119th | $156,852±$35,878 · within the margin of this tract |
| Tract 4128 | 120th | $156,023±$44,961 · within the margin of this tract |
| Tract 4119.02 | 121st | $155,795±$18,591 · within the margin of this tract |
| Tract 5185.01 | 122nd | $155,682±$48,530 |
| Tract 5190 | 123rd | $155,469±$28,654 · within the margin of this tract |
| Tract 4073.01 | 124th | $155,446±$50,899 · within the margin of this tract |
| Tract 3020 | 125th | $154,375±$55,909 · within the margin of this tract |
| Tract 4168.01 | 125th | $154,375±$25,987 · 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 5185.01?
2 of the 18 figures for Census Tract 5185.01 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