Census tract · Middlesex County
Census Tract 85.02, Middlesex County, New Jersey
Census Tract 85.02, GEOID 34023008502, in Middlesex County, New Jersey, entirely within South Brunswick Township. 6,116 residents in the ACS 2020-2024 5-year estimates (±867); the 2020 Census counted 5,669.
Residents, 2020-2024
6,116
±867 (90% margin)
2020 Census count: 5,669
Median household income
$231,983
±$24,907 (90% margin)
Middlesex County: $111,549
Median home value
$731,800
±$55,542 (90% margin)
Middlesex County: $462,900
Median gross rent
$2,819
±$989 (90% margin)
Middlesex County: $1,871
Where is Census Tract 85.02?
Census Tract 85.02 is one of 192 census tracts in Middlesex County, New Jersey. It covers 21.14 square miles of land, 268 residents per square mile in 2020. Its GEOID, 34023008502, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| South Brunswick Township | 100% |
| Deans | 19% |
| Dayton | 10% |
| Monmouth Junction | 4% |
12 census tracts border Census Tract 85.02: Tract 62.09 ($62,288), Tract 66.01 ($178,438), Tract 66.04 ($108,724), Tract 66.05 ($158,839), Tract 82.06 ($60,756), Tract 82.10 ($189,320), Tract 85.01 ($112,460), Tract 85.04 ($133,315), Tract 85.05 ($159,494), Tract 85.06 ($167,860), Tract 86.02 ($155,313) and Tract 87 ($216,691). 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 85.02?
The 2020-2024 American Community Survey puts Census Tract 85.02's population at 6,116 (±867) in 1,950 households; the 2020 Census counted 5,669 residents and 1,841 housing units.
| Measure | Tract 85.02 | South Brunswick Township |
|---|---|---|
| Total population | 6,116 ±867 | 47,137 |
| Households | 1,950 ±215 | 16,770 |
| Average household size | 3.14 ±0.19 | 2.81 |
| Housing units | 1,978 ±221 | 16,993 |
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 85.02?
The median resident of Census Tract 85.02 is 43.7 years old; 23.5% are under 18 and 12.9% are 65 or older. The largest group is non-Hispanic Asian residents at 56.4%, then non-Hispanic white residents at 32.2%. 40.6% of residents were born outside the United States.
| Measure | Tract 85.02 | South Brunswick Township |
|---|---|---|
| Median age | 43.7 ±2.0 | 41.8 |
| Under 18 years | 23.5% ±3.6 pts | 23.2% |
| 65 years and over | 12.9% ±2.5 pts | 14.5% |
| Hispanic or Latino (any race) | 3.7% ±2.1 pts | 7.4% |
| White alone, not Hispanic | 32.2% ±7.3 pts | 33.1% |
| Black or African American alone, not Hispanic | 3.5% ±2.4 pts | 4.9% |
| Asian alone, not Hispanic | 56.4% ±8.0 pts | 50.5% |
| 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 | 0.1% |
| Two or more races, not Hispanic | 3.8% ±2.6 pts | 3.1% |
| Some other race alone, not Hispanic | 0.3% ±0.5 pts | 0.9% |
| Born outside the United States | 40.6% ±5.3 pts | 42.2% |
| Speak a language other than English at home (age 5+) | 53.2% ±8.8 pts | 52.7% |
| Civilian veterans (age 18+) | 1.3% ±1.0 pts | 2.5% |
| With a disability | 5.4% ±2.4 pts | 7.5% |
| No health insurance coverage | 2.3% ±2.4 pts | 3.6% |
| High school graduate or higher (age 25+) | 96.9% ±1.4 pts | 95.0% |
| Bachelor's degree or higher (age 25+) | 74.4% ±5.9 pts | 68.9% |
| Graduate or professional degree (age 25+) | 35.1% ±6.3 pts | 33.1% |
| Lived in the same house a year earlier | 93.2% ±4.2 pts | 92.8% |
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 85.02 earn?
Half of the 1,950 households in Census Tract 85.02 earn less than $231,983 a year (±$24,907), against $111,549 across Middlesex County: 3rd highest of the county's 187 tracts with a reliable estimate.
| Measure | Tract 85.02 | South Brunswick Township |
|---|---|---|
| Median household income | $231,983 ±$24,907 | $150,933 |
| Mean household income | $266,198 ±$41,393 | $190,672 |
| Per capita income | $91,999 ±$18,889 | $68,610 |
| People below the poverty line | 0.8% ±0.9 pts | 4.5% |
| Children under 18 below the poverty line | 0.0% ±3.1 pts | 5.0% |
| Households receiving SNAP | 0.4% ±0.6 pts | 3.3% |
| Households with a computer | 98.3% ±2.2 pts | 98.4% |
| Households with a broadband subscription | 97.3% ±2.5 pts | 97.5% |
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 Census Tract 85.02?
Owners occupy 94.8% of Census Tract 85.02's occupied homes and renters 5.2%. The median owner-occupied home is valued at $731,800 by its owner (±$55,542). The median renter pays $2,819 a month including utilities.
| Measure | Tract 85.02 | South Brunswick Township |
|---|---|---|
| Median home value (owner-occupied) | $731,800 ±$55,542 | $582,700 |
| Median gross rent | $2,819 ±$989 | $1,935 |
| Renters paying 35% or more of income on rent | 48.8% ±42.7 pts | 28.5% |
| Median monthly owner costs, with a mortgage | $4,000 or more | $3,481 |
| Owner-occupied homes | 94.8% ±3.5 pts | 76.9% |
| Renter-occupied homes | 5.2% ±3.5 pts | 23.1% |
| Housing units | 1,978 ±221 | 16,993 |
| Single-family detached homes | 87.1% ±4.5 pts | 54.9% |
| Mobile homes | 0.0% ±2.2 pts | 2.6% |
| Built 2020 or later | 3.9% ±3.2 pts | 0.8% |
| Built 2010 to 2019 | 16.6% ±8.4 pts | 9.1% |
| Built 1939 or earlier | 4.8% ±3.5 pts | 2.4% |
| Households with no vehicle | 1.7% ±2.1 pts | 4.1% |
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 85.02 get to work?
48.0% of Census Tract 85.02's workers drive alone and 37.3% work from home. The average trip to work takes 42.5 minutes.
| Measure | Tract 85.02 | South Brunswick Township |
|---|---|---|
| In the labor force (age 16+) | 72.5% ±5.4 pts | 72.8% |
| Unemployment rate | 2.9% ±2.4 pts | 5.3% |
| Drove alone to work | 48.0% ±9.5 pts | 58.8% |
| Carpooled | 7.3% ±4.8 pts | 6.3% |
| Public transportation | 5.9% ±3.3 pts | 4.9% |
| Walked | 0.7% ±1.0 pts | 0.4% |
| Worked from home | 37.3% ±11.1 pts | 28.1% |
| Mean travel time to work | 42.5 min ±5.2 | 34.4 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 85.02 compare with the other tracts in Middlesex County?
Among Middlesex County's tracts with a reliable estimate, Census Tract 85.02 ranks as shown below (1 = highest).
| Measure | In Middlesex County |
|---|---|
| Population | 37th of 190 |
| Residents per square mile | 190th of 192 |
| Median household income | 3rd of 187 |
| Per capita income | 5th of 190 |
| Median home value | 9th of 184 |
| Median gross rent | 10th of 161 |
| Bachelor's degree or higher | 14th of 189 |
| Median age | 50th of 191 |
| Owner-occupied share | 23rd of 183 |
The tracts next to it on Middlesex County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 14.15 | 1st | $250,000 or more |
| Tract 82.12 | 2nd | $236,667±$60,033 · within the margin of this tract |
| Tract 85.02 | 3rd | $231,983±$24,907 |
| Tract 14.17 | 4th | $222,083±$41,105 · within the margin of this tract |
| Tract 84.05 | 5th | $219,038±$66,668 · within the margin of this tract |
| Tract 87 | 6th | $216,691±$38,482 · 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 85.02?
2 of the 18 figures for Census Tract 85.02 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