Princeton Junction, New Jersey Demographics & Population 2026
During the 2020–2024 ACS period, Princeton Junction, New Jersey had a total population of 2,025, the 457th largest community in New Jersey, with a median household income of $224,732, which is 117% higher than the state average. The poverty rate is 8.3%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Key Takeaways
- Household income is 117% above the state average — one of the wealthiest communities in New Jersey.
- 78.9% of adults hold a bachelor's degree or higher — top 10% in New Jersey.
Princeton Junction Quick Facts
How Princeton Junction 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 | 1,842 | 2,025 | +9.9% |
| Median household income | $219,375 | $224,732 | +2.4% |
| Median home value | $669,100 | $709,800 | +6.1% |
How Princeton Junction 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+)
Princeton Junction Rankings in New Jersey
Explore New Jersey Rankings
Other Cities in Mercer County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Trenton | 90,338 | $52,537 | 21.6% | $160,700 |
| Princeton | 30,756 | $192,079 | 6.1% | $1,050,600 |
| Mercerville | 13,535 | $128,277 | 3.2% | $358,600 |
| Hamilton Square | 11,622 | $138,162 | 2.3% | $397,000 |
| White Horse | 10,507 | $105,758 | 2.6% | $308,200 |
| Twin Rivers | 8,382 | $100,833 | 3.5% | $301,400 |
| Yardville | 6,301 | $103,274 | 13.2% | $360,100 |
| Hightstown | 5,920 | $108,987 | 2.1% | $342,600 |
| Lawrenceville | 3,924 | $122,614 | 0.3% | $411,900 |
| Robbinsville Center | 3,777 | $134,388 | 11.1% | $526,300 |
Cities Similar to Princeton Junction
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Ramapo College of New Jersey | 2,018 | N/A | N/A | 40.5% | N/A |
| Sea Girt | 1,980 | $213,750 | $2,000,000+ | 77.0% | 3.3% |
| Forsgate | 2,102 | $239,097 | $692,800 | 77.9% | 3.6% |
| Cranbury | 2,185 | $224,200 | $804,800 | 70.5% | 2.8% |
| Keasbey | 2,252 | N/A | $278,800 | 17.3% | 31.1% |
Population Overview
Princeton Junction is a small community located in New Jersey, within Mercer County. The total population is 2,025. It ranks as the 457th most populous out of 700 Census-designated places in New Jersey.
Age Demographics
The median age in Princeton Junction is 44.3 years. This is 10% higher than the state median of 40.1 years.
Economy, Income & Housing
The median household income in Princeton Junction is $224,732. This is 117% higher than the state median of $103,556. It is also 178% higher than the national median of $80,734. The poverty rate stands at 8.3%. This is 15% lower than the state poverty rate of 9.7%. The unemployment rate is 6.8%. This is 7% higher than the state rate of 6.3%. The median home value is $709,800. Housing costs are 56% higher than the state median of $454,400. The home-value-to-income ratio is 3.2x. 82.0% of occupied housing units are owner-occupied. This homeownership rate is 28% higher than the state average of 63.8%.
Race & Ethnicity
The largest racial or ethnic group in Princeton Junction is White (non-Hispanic), making up 55.0% of the population. Asian residents account for 29.8%. The Black or African American population (1.8%) is well below the state average of 12.2%. The Hispanic or Latino population (2.6%) is well below the state average of 22.5%. The Asian population is significantly higher than the state average (29.8% vs 10.1%).
Education
78.9% of residents aged 25 and older hold a bachelor's degree or higher. This places Princeton Junction in the top 10% of all cities in the state for educational attainment. This is 81% 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 97.1%. Notably, 42.5% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Princeton Junction, 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 Princeton Junction, New Jersey?
Princeton Junction, New Jersey has a population of 2,025 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Princeton Junction, NJ?
The median household income in Princeton Junction is $224,732, which is 178% higher than the national median of $80,734.
What is the poverty rate in Princeton Junction, NJ?
The poverty rate in Princeton Junction is 8.3%. This means approximately 168 residents live below the federal poverty line.
What is the racial makeup of Princeton Junction, New Jersey?
Princeton Junction's population is 55.0% White, 1.8% Black, 2.6% Hispanic/Latino, and 29.8% Asian.
What is the median home value in Princeton Junction, NJ?
The median home value in Princeton Junction is $709,800. The home-value-to-income ratio is 3.2x.
How educated is Princeton Junction, New Jersey?
78.9% of adults (25+) in Princeton Junction hold a bachelor's degree or higher, and 42.5% hold a graduate or professional degree.