Census tract · Somerset County
Census Tract 538.07, Somerset County, New Jersey
Census Tract 538.07, GEOID 34035053807, in Somerset County, New Jersey, entirely within Blackwells Mills and Hillsborough Township. 7,294 residents in the ACS 2020-2024 5-year estimates (±767); the 2020 Census counted 6,878.
Residents, 2020-2024
7,294
±767 (90% margin)
2020 Census count: 6,878
Median household income
$250,000 or more
The survey's top or bottom value; no margin is published
Somerset County: $140,374
Median home value
$779,700
±$52,215 (90% margin)
Somerset County: $552,100
Median gross rent
$3,195
±$140 (90% margin)
Somerset County: $2,033
Where is Census Tract 538.07?
Census Tract 538.07 is one of 74 census tracts in Somerset County, New Jersey. It covers 5.17 square miles of land, 1,330 residents per square mile in 2020. Its GEOID, 34035053807, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Blackwells Mills | 100% |
| Hillsborough Township | 100% |
6 census tracts border Census Tract 538.07: Tract 534.02 ($138,438), Tract 534.05 ($184,338), Tract 538.01 ($141,709), Tract 538.05 ($118,140), Tract 538.06 ($187,031) and Tract 539.05 ($224,900). 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 538.07?
The 2020-2024 American Community Survey puts Census Tract 538.07's population at 7,294 (±767) in 2,177 households; the 2020 Census counted 6,878 residents and 2,063 housing units.
| Measure | Tract 538.07 | Blackwells Mills |
|---|---|---|
| Total population | 7,294 ±767 | 10,301 |
| Households | 2,177 ±188 | 3,078 |
| Average household size | 3.34 ±0.21 | 3.33 |
| Housing units | 2,177 ±188 | 3,078 |
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 538.07?
The median resident of Census Tract 538.07 is 40.4 years old; 26.8% are under 18 and 11.5% are 65 or older. The largest group is non-Hispanic white residents at 48.5%, then non-Hispanic Asian residents at 34.6%. 23.9% of residents were born outside the United States.
| Measure | Tract 538.07 | Blackwells Mills |
|---|---|---|
| Median age | 40.4 ±3.2 | 40.2 |
| Under 18 years | 26.8% ±4.0 pts | 27.1% |
| 65 years and over | 11.5% ±1.9 pts | 12.9% |
| Hispanic or Latino (any race) | 6.0% ±5.1 pts | 5.5% |
| White alone, not Hispanic | 48.5% ±6.6 pts | 53.8% |
| Black or African American alone, not Hispanic | 2.2% ±2.5 pts | 4.4% |
| Asian alone, not Hispanic | 34.6% ±6.0 pts | 29.7% |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.6 pts | 0.0% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.6 pts | 0.0% |
| Two or more races, not Hispanic | 8.7% ±4.8 pts | 6.5% |
| Some other race alone, not Hispanic | 0.0% ±0.6 pts | 0.0% |
| Born outside the United States | 23.9% ±4.1 pts | 23.1% |
| Speak a language other than English at home (age 5+) | 29.8% ±5.7 pts | 29.3% |
| Civilian veterans (age 18+) | 3.0% ±2.1 pts | 2.4% |
| With a disability | 6.6% ±2.1 pts | 6.4% |
| No health insurance coverage | 0.0% ±0.6 pts | 0.7% |
| High school graduate or higher (age 25+) | 96.1% ±1.9 pts | 96.6% |
| Bachelor's degree or higher (age 25+) | 77.7% ±5.6 pts | 76.2% |
| Graduate or professional degree (age 25+) | 43.9% ±5.4 pts | 40.0% |
| Lived in the same house a year earlier | 92.8% ±3.6 pts | 91.5% |
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 538.07 earn?
Half of the 2,177 households in Census Tract 538.07 earn less than $250,000 or more a year (), against $140,374 across Somerset County: 1st highest of the county's 74 tracts with a reliable estimate.
| Measure | Tract 538.07 | Blackwells Mills |
|---|---|---|
| Median household income | $250,000 or more | $250,000 or more |
| Mean household income | $304,866 ±$35,116 | $289,939 |
| Per capita income | $89,450 ±$9,188 | $84,946 |
| People below the poverty line | 2.3% ±1.9 pts | 1.7% |
| Children under 18 below the poverty line | 2.7% ±4.2 pts | 1.9% |
| Households receiving SNAP | 0.7% ±1.2 pts | 1.3% |
| Households with a computer | 99.2% ±1.3 pts | 99.4% |
| Households with a broadband subscription | 100.0% ±2.0 pts | 99.8% |
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 538.07?
Owners occupy 93.3% of Census Tract 538.07's occupied homes and renters 6.7%. The median owner-occupied home is valued at $779,700 by its owner (±$52,215). The median renter pays $3,195 a month including utilities.
| Measure | Tract 538.07 | Blackwells Mills |
|---|---|---|
| Median home value (owner-occupied) | $779,700 ±$52,215 | $735,000 |
| Median gross rent | $3,195 ±$140 | $3,206 |
| Renters paying 35% or more of income on rent | 51.0% ±51.0 pts | 49.3% |
| Median monthly owner costs, with a mortgage | $4,000 or more | $4,000 or more |
| Owner-occupied homes | 93.3% ±5.0 pts | 95.1% |
| Renter-occupied homes | 6.7% ±5.0 pts | 4.9% |
| Housing units | 2,177 ±188 | 3,078 |
| Single-family detached homes | 96.2% ±3.4 pts | 97.3% |
| Mobile homes | 0.0% ±2.0 pts | 0.0% |
| Built 2020 or later | 0.8% ±1.4 pts | 0.6% |
| Built 2010 to 2019 | 8.4% ±4.2 pts | 6.5% |
| Built 1939 or earlier | 2.3% ±2.6 pts | 2.3% |
| Households with no vehicle | 0.8% ±1.3 pts | 1.3% |
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 Census Tract 538.07 get to work?
62.4% of Census Tract 538.07's workers drive alone and 31.1% work from home. The average trip to work takes 34.5 minutes. The unemployment rate in 2020-2024 averaged 4.2%.
| Measure | Tract 538.07 | Blackwells Mills |
|---|---|---|
| In the labor force (age 16+) | 69.8% ±5.0 pts | 69.1% |
| Unemployment rate | 4.2% ±2.7 pts | 4.8% |
| Drove alone to work | 62.4% ±6.5 pts | 64.3% |
| Carpooled | 5.0% ±2.8 pts | 3.9% |
| Public transportation | 0.4% ±0.7 pts | 1.1% |
| Walked | 0.0% ±1.2 pts | 0.0% |
| Worked from home | 31.1% ±6.5 pts | 29.9% |
| Mean travel time to work | 34.5 min ±3.7 | 33.9 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 538.07 compare with the other tracts in Somerset County?
Among Somerset County's tracts with a reliable estimate, Census Tract 538.07 ranks as shown below (1 = highest).
| Measure | In Somerset County | In Blackwells Mills |
|---|---|---|
| Population | 6th of 74 | 1st of 3 |
| Residents per square mile | 41st of 74 | 1st of 3 |
| Median household income | 1st of 74 | 1st of 3 |
| Per capita income | 18th of 74 | 1st of 3 |
| Median home value | 15th of 74 | 1st of 3 |
| Median gross rent | 4th of 65 | 1st of 3 |
| Bachelor's degree or higher | 9th of 74 | 1st of 3 |
| Median age | 49th of 74 | 2nd of 3 |
| Owner-occupied share | 11th of 74 | 1st of 3 |
The tracts next to it on Somerset County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 522.03 | 1st | $250,000 or more |
| Tract 526.05 | 1st | $250,000 or more |
| Tract 538.07 | 1st | $250,000 or more |
| Tract 539.04 | 1st | $250,000 or more |
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 538.07?
3 of the 18 figures for Census Tract 538.07 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