Blackwells Mills, New Jersey Demographics & Population 2026
During the 2020–2024 ACS period, Blackwells Mills, New Jersey had a total population of 10,301, the 149th largest community in New Jersey, with a median household income of $250,000+, which is 141% higher than the state average. The poverty rate is 1.7%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 141% above the state average — one of the wealthiest communities in New Jersey.
- An exceptionally low poverty rate of 1.7% — among the lowest in New Jersey.
- 76.2% of adults hold a bachelor's degree or higher — top 10% in New Jersey.
Blackwells Mills Quick Facts
How Blackwells Mills Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 10,220 | 10,301 | +0.8% |
| Median household income | $248,149 | $250,000+ | +0.7% |
| Median home value | $736,000 | $735,000 | -0.1% |
How Blackwells Mills Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 66 | National average: 61
Education
Educational Attainment (Adults 25+)
Blackwells Mills Rankings in New Jersey
Explore New Jersey Rankings
Other Cities in Somerset County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| North Plainfield | 22,809 | $87,349 | 13.2% | $374,700 |
| Somerset | 22,720 | $121,028 | 4.5% | $438,800 |
| Hillsborough | 22,585 | $144,112 | 2.7% | $435,700 |
| Bradley Gardens | 14,165 | $177,849 | 4.2% | $546,300 |
| Somerville | 13,410 | $103,760 | 5.9% | $435,700 |
| Franklin Park | 13,211 | $114,946 | 11.0% | $336,600 |
| Bound Brook | 12,219 | $90,571 | 11.1% | $397,100 |
| Martinsville | 11,559 | $205,000 | 1.4% | $720,400 |
| East Franklin | 11,070 | $115,458 | 5.9% | $385,900 |
| Manville | 10,921 | $93,333 | 11.7% | $354,300 |
Cities Similar to Blackwells Mills
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Franklin Lakes | 11,084 | $235,795 | $1,264,000 | 77.4% | 3.5% |
| Chatham | 9,407 | $241,500 | $984,900 | 83.7% | 2.2% |
| Hillsdale | 10,144 | $186,688 | $677,500 | 63.3% | 2.2% |
| Kinnelon | 10,013 | $187,438 | $706,400 | 65.4% | 2.0% |
| Waldwick | 10,164 | $177,962 | $588,500 | 59.5% | 1.5% |
Population Overview
Blackwells Mills is a small city located in New Jersey, within Somerset County. The total population is 10,301. It ranks as the 149th most populous out of 700 Census-designated places in New Jersey.
Age Demographics
The median age in Blackwells Mills is 40.2 years. This is about the same as the state median of 40.1 years.
Economy, Income & Housing
The median household income in Blackwells Mills is $250,000+. This is 141% higher than the state median of $103,556. It is also 210% higher than the national median of $80,734. The poverty rate stands at 1.7%. This is 82% lower than the state poverty rate of 9.7%. This exceptionally low poverty rate indicates strong economic prosperity across the community. The unemployment rate is 4.8%. This is 24% lower than the state rate of 6.3%. The median home value is $735,000. Housing costs are 62% higher than the state median of $454,400. With a home-value-to-income ratio of just 2.9x, Blackwells Mills is one of the most affordable housing markets in the area. 95.1% of occupied housing units are owner-occupied. This homeownership rate is 49% higher than the state average of 63.8%.
Race & Ethnicity
The largest racial or ethnic group in Blackwells Mills is White (non-Hispanic), making up 53.8% of the population. Asian residents account for 29.7%. The Black or African American population (4.4%) is well below the state average of 12.2%. The Hispanic or Latino population (5.5%) is well below the state average of 22.5%. The Asian population is significantly higher than the state average (29.7% vs 10.1%).
Education
76.2% of residents aged 25 and older hold a bachelor's degree or higher. This places Blackwells Mills in the top 10% of all cities in the state for educational attainment. This is 75% higher than the state rate of 43.6%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 96.6%. Notably, 40.0% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Blackwells Mills, New Jersey is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against New Jersey state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 700 Census-designated places in New Jersey. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Blackwells Mills, New Jersey?
Blackwells Mills, New Jersey has a population of 10,301 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Blackwells Mills, NJ?
The median household income in Blackwells Mills is $250,000+, which is 210% higher than the national median of $80,734.
What is the poverty rate in Blackwells Mills, NJ?
The poverty rate in Blackwells Mills is 1.7%. This means approximately 178 residents live below the federal poverty line.
What is the racial makeup of Blackwells Mills, New Jersey?
Blackwells Mills's population is 53.8% White, 4.4% Black, 5.5% Hispanic/Latino, and 29.7% Asian.
What is the median home value in Blackwells Mills, NJ?
The median home value in Blackwells Mills is $735,000. The home-value-to-income ratio is 2.9x.
How educated is Blackwells Mills, New Jersey?
76.2% of adults (25+) in Blackwells Mills hold a bachelor's degree or higher, and 40.0% hold a graduate or professional degree.