Housing data for Blackwells Mills, NJ
Blackwells Mills, NJ has an estimated 10,301 residents and 3,078 homes (US Census Bureau, 2020–2024 American Community Survey).
It is an unincorporated community in Somerset County.
4.9% of households rent.
The median gross rent is $3,206 a month.
Its population grew measurably since 2015–2019 (+1406.0%).
Figures last updated on .
- Residents
- 10,301 (±972)
- Housing units
- 3,078 (±257)
- Households that rent
- 4.9%
- Median gross rent
- $3,206
- Residents since 2015–2019
- +1406.0%
What stands out in Blackwells Mills
Households that rent: 4.9% (±3.6 points) in Blackwells Mills, lower than in Somerset County (25.7%).
Homes in buildings of 5 or more units: 1.2% (±2.7 points) in Blackwells Mills, lower than in Somerset County (17.8%).
Median gross rent: $3,206 (±$134) in Blackwells Mills, higher than in Somerset County ($2,033).
Median home value: $735,000 (±$39,664) in Blackwells Mills, higher than in Somerset County ($552,100).
Housing in Blackwells Mills at a glance
- Median rent: $3,206 median gross rent a month
- Rent burden: 49.3% of renters pay 30% or more of income (Small sample: wide margin of error)
- Renters and owners: 4.9% of households rent (Small sample: wide margin of error)
- Income and affordability: $250,000 or more median household income
- Home values: $735,000 median home value
- Homeowner costs: $4,000 or more median monthly cost with a mortgage
- Property taxes: $10,000 or more median real estate taxes a year
- Types of homes: 1.2% of homes are in buildings of 5 or more units
- Bedrooms: 94.4% of homes have 3 or more bedrooms (Small sample: wide margin of error)
- Age of homes: 31.2% of homes were built before 1980
- Vacancy rate: 0.0% rental vacancy rate (Small sample: wide margin of error)
- Heating fuel: 84.2% heat with utility gas
- Commute and cars: 33.9 minutes average trip to work
- Growth: +1406.0% residents since 2015–2019
- How long people stay: 13.4% moved in since 2020
- Crowding and facilities: 1.0% of homes have more than 1 person per room
Blackwells Mills against Somerset County, its state and the nation
| Blackwells Mills | Somerset County | New Jersey | United States | |
|---|---|---|---|---|
| Residents | 10,301 (±972) | 349,846 (exact) | 9,343,809 (exact) | 334,922,499 |
| Housing units | 3,078 (±257) | 133,639 (±156) | 3,791,354 (±469) | 143,775,355 |
| Households that rent | 4.9% (±3.6 points) | 25.7% (±0.9 points) | 36.2% (±0.2 points) | 34.8% |
| Median gross rent | $3,206 (±$134) | $2,033 (±$52) | $1,720 (±$7) | $1,413 |
| Median household income | $250,000 or more | $140,374 (±$3,294) | $103,556 (±$513) | $80,734 |
| Median home value | $735,000 (±$39,664) | $552,100 (±$7,374) | $454,400 (±$1,150) | $332,700 |
| Median real estate taxes (a year) | $10,000 or more | $10,000 or more | $9,590 (±$25) | $3,119 |
| Built before 1980 | 31.2% (±6.0 points) | 46.3% (±1.3 points) | 62.8% (±0.3 points) | 49.7% |
| Average commute | 33.9 minutes (±2.4) | 31.4 minutes (±0.7) | 30.5 minutes (±0.1) | 26.4 minutes |
| Households with broadband | 99.8% (±0.3 points) | 95.8% (±0.5 points) | 92.8% (±0.1 points) | 91.0% |
| Median age of residents | 40.2 years (±3.1) | 41.8 years (±0.2) | 40.1 years (±0.1) | 38.9 years |
Blackwells Mills covers 7.7 square miles of land, about 1,341 residents per square mile (Census Bureau Gazetteer).
How Blackwells Mills has changed since 2015–2019
| 2015–2019 | 2020–2024 | Amount of change | Verdict | |
|---|---|---|---|---|
| Residents | 684 (±296) | 10,301 (±972) | +1406.0% | Measurable increase |
| Housing units | 212 (±95) | 3,078 (±257) | +1351.9% | Measurable increase |
| Households that rent | 5.2% (±10.2 points) | 4.9% (±3.6 points) | −0.3 percentage points | Not a measurable change |
| Rental vacancy rate | 0.0% (±92.8 points) | 0.0% (±25.5 points) | 0.0 percentage points | Not a measurable change |
The Census Bureau publishes 2015–2019 dollars in 2019 dollars and 2020–2024 dollars in 2024 dollars.
Prices (the CPI-U, US Bureau of Labor Statistics) rose 22.7% between 2019 and 2024, so a dollar figure’s verdict compares the two after raising the earlier one by that much, using the Census Bureau’s test for a difference.
The two periods do not overlap, as the Census Bureau recommends for 5-year estimates.
Crime reported to police in Somerset County
Blackwells Mills has no police department of its own in the FBI’s figures, so this is the figure for Somerset County as a whole.
In 2025, the police departments that report for Somerset County recorded 60 violent and 566 property crimes per 100,000 residents.
A county-wide figure describes the whole county, not this place; crime varies from one community to the next.
ZIP codes in Blackwells Mills
| ZIP code | Share of the ZIP’s land in this place | Residents | Median gross rent | Median home value | Median household income |
|---|---|---|---|---|---|
| 08844 | 12% | 44,463 | $2,388 | $547,700 | $153,556 |
A ZIP code is a mail route rather than a boundary, so the Census Bureau publishes figures for ZIP Code Tabulation Areas built from census blocks; the share column says how much of each one’s land lies in this place.
Places near Blackwells Mills
| Place | Distance | Median gross rent | Median home value | Households that rent |
|---|---|---|---|---|
| Millstone Borough | 1.3 mi | $1,375 | $494,500 | 10.1% |
| Franklin Township (Somerset County) | 2.5 mi | $2,115 | $457,900 | 30.7% |
| Weston | 3.1 mi | — | $548,800 | 1.7% |
| Belle Mead | 3.2 mi | $2,627 | $810,300 | 36.2% |
| Hillsborough | 3.4 mi | $1,986 | $435,700 | 20.1% |
| Six Mile Run | 3.5 mi | $2,145 | $480,700 | 31.4% |
| Middlebush | 3.6 mi | — | $502,100 | 1.3% |
| Franklin Park | 3.9 mi | $2,157 | $336,600 | 44.3% |
HUD Fair Market Rent for Blackwells Mills, fiscal year 2027
| Studio | 1 bedroom | 2 bedrooms | 3 bedrooms | 4 bedrooms |
|---|---|---|---|---|
| $1,953 | $2,103 | $2,623 | $3,125 | $3,508 |
HUD income limits for Blackwells Mills, fiscal year 2026
| Household size | Extremely low (30%) | Very low (50%) | Low (80%) |
|---|---|---|---|
| 1 person | $32,550 | $54,200 | $80,200 |
| 2 people | $37,200 | $61,950 | $91,700 |
| 3 people | $41,850 | $69,700 | $103,150 |
| 4 people | $46,450 | $77,400 | $114,600 |
| 5 people | $50,200 | $83,600 | $123,800 |
| 6 people | $53,900 | $89,800 | $132,950 |
| 7 people | $57,600 | $96,000 | $142,150 |
| 8 people | $61,350 | $102,200 | $151,300 |
These are the limits HUD sets for its housing programs in the Middlesex-Somerset-Hunterdon, NJ HUD Metro FMR Area, where HUD’s median family income for fiscal year 2026 is $154,800.
A program can use its own limits; tax-credit and local programs often do.
Blackwells Mills is a census-designated place: an unincorporated community the Census Bureau draws for statistics, with no municipal government of its own.
It lies inside Hillsborough Township, whose figures include it.
Survey years: 2020–2024 (American Community Survey 5-year estimates), compared with 2015–2019.
Margins of error are at the 90% confidence level.
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Questions about Blackwells Mills
What is the average rent in Blackwells Mills, NJ?
The Census Bureau publishes the median rather than the average: the median gross rent in Blackwells Mills is $3,206 (±$134) a month (2020–2024 American Community Survey), so half of renting households pay less and half pay more.
What is the median household income in Blackwells Mills?
The median household income in Blackwells Mills is $250,000 or more a year (2020–2024 American Community Survey).
What is the average home value in Blackwells Mills, NJ?
The Census Bureau publishes the median: $735,000 (±$39,664) for owner-occupied homes in Blackwells Mills (2020–2024 American Community Survey).
What is the average mortgage payment in Blackwells Mills?
The Census Bureau publishes total owner costs rather than the mortgage alone: the median for owners with a mortgage in Blackwells Mills, NJ is $4,000 or more a month, including taxes, insurance and utilities.
How much are property taxes in Blackwells Mills?
The median real estate tax paid by homeowners in Blackwells Mills, NJ is $10,000 or more a year (2020–2024 American Community Survey).
How many homes are in Blackwells Mills?
Blackwells Mills, NJ has an estimated 3,078 (±257) housing units, occupied and vacant (2020–2024 American Community Survey).
Is Blackwells Mills growing?
In Blackwells Mills, the number of residents went from 684 in 2015–2019 to 10,301 in 2020–2024 (+1406.0%), a measurable increase.
What ZIP codes are in Blackwells Mills?
The ZIP code that covers Blackwells Mills is 08844.
What is the median rent in ZIP code 08844?
The median gross rent in ZIP Code Tabulation Area 08844 is $2,388 (±$273) a month (2020–2024 American Community Survey).
Sources
- Demographic and Housing Estimates (DP05), 2020–2024 ACS 5-year estimates — Blackwells Mills CDP, New Jersey
- Selected Housing Characteristics (DP04), 2020–2024 ACS 5-year estimates — Blackwells Mills CDP, New Jersey
- Selected Economic Characteristics (DP03), 2020–2024 ACS 5-year estimates — Blackwells Mills CDP, New Jersey
- Median Real Estate Taxes Paid by Mortgage Status (B25103), 2020–2024 ACS 5-year estimates — Blackwells Mills CDP, New Jersey
- Selected Social Characteristics (DP02), 2020–2024 ACS 5-year estimates — Blackwells Mills CDP, New Jersey
- Total Population (B01003), 2015–2019 ACS 5-year estimates — Blackwells Mills CDP, New Jersey
- Median Gross Rent (B25064), 2015–2019 ACS 5-year estimates — Blackwells Mills CDP, New Jersey
- HUD Fair Market Rents, fiscal year 2027: Middlesex-Somerset-Hunterdon, NJ HUD Metro FMR Area
- HUD Income Limits, fiscal year 2026: Middlesex-Somerset-Hunterdon, NJ HUD Metro FMR Area
- US Census Bureau, American Community Survey 2020–2024 5-year estimates for ZIP Code Tabulation Areas
- Consumer Price Index for All Urban Consumers (CPI-U), US city average, all items, US Bureau of Labor Statistics: annual averages 2019 and 2024
- US Census Bureau, 2024 Gazetteer Files
To check these figures in the Census Bureau’s own API, request the variables below from the 2024 ACS 5-year data profile (acs/acs5/profile) for Blackwells Mills CDP, New Jersey (place:06025, in state:34).
Each estimate (E or PE) has a margin of error beside it (M or PM).
The 2015–2019 figures are B01003_001E, B01003_001M, B25064_001E, B25064_001M from the 2019 release.
The API needs a free key.
DP05_0001E, DP05_0001M, DP04_0001E, DP04_0001M, DP04_0047PE, DP04_0047PM, DP04_0134E, DP04_0134M, DP03_0062E, DP03_0062M, DP04_0089E, DP04_0089M
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are published by the US Census Bureau, HUD, the Bureau of Labor Statistics and the FBI; Seayora reproduces them and does not adjust them, except where a sentence says it compares dollar figures after inflation. They describe the whole place, not any one building or street, and are not an appraisal, a rent determination, a tax bill, a safety rating or legal advice.
Figures last updated on .