Trenton, New Jersey Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Trenton, NJ Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
-
C
Health Below average
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D
Income Well below average
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F
Education Well below average
Source: Map AI Methodology
Population
| Metric | Trenton | New Jersey Avg | U.S. Average |
|---|---|---|---|
| Population | 90,225 | 9,334,304 | 337,468,954 |
| Population density (per sq mi) | 10997.3 | 1071.4 | 86.4 |
| Population growth (%/yr) | 0.83% | 0.59% | 0.59% |
| Median age | 33.7 | 40.2 | 37.3 |
| Households | 31,912 | 3,503,323 | 130,235,071 |
Population in Trenton grew by 8.0% from 2009 to 2024, reaching 90,225 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Trenton is Millennials, aged 29–44, at 23.0% of residents. That is 1.2 points above New Jersey as a whole.
- Gen Z 13–28 19,583 21.7% +1.6 pts
- Millennials 29–44 20,709 23.0% +1.2 pts
- Gen X 45–60 17,834 19.8% -1.7 pts
- Boomers 61–79 11,183 12.4% -4.4 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below New Jersey, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.6% of the people living in Trenton and men 49.4%.
- Women 50.6% New Jersey 50.9%
- Men 49.4% New Jersey 49.1%
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Economy
Trenton has a the economy index of D, which means it is barely prosperous.
| Metric | Trenton | New Jersey Avg | U.S. Average |
|---|---|---|---|
| Median household income | $52,369 | $103,817 | $80,455 |
| Income growth (%/yr) | 5.45% | 4.37% | 4.80% |
| Unemployment rate | 10.1% | 6.3% | 5.2% |
The median household income in Trenton is about 50% lower than in New Jersey.
Housing
| Metric | Trenton | New Jersey Avg | U.S. Average |
|---|---|---|---|
| Median home price | $244,261 | $352,792 | $248,835 |
| Median rent | $1,292 | $1,719 | $1,407 |
| Homeownership rate | 38.0% | 63.8% | 65.2% |
The median home price in Trenton is about 15.8 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,292 per month for that long.
Commute Time & Mobility
Commuters in Trenton spend about 44 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 182 hours, about 7.6 full days, spent commuting.
| Metric | Trenton | New Jersey Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 21.9 | 26.2 | 22.4 |
| Round-trip commute (min) | 43.7 | 52.4 | 44.8 |
| Yearly time spent (hours) | 182 | 218 | 187 |
| Estimated yearly cost | $5,649 | $6,764 | $5,790 |
| Work from home | 7.1% | 16.8% | 15.0% |
| Highway traffic (vehicles/day) | 8,866 | 14,317 | 8,813 |
| Local road traffic (vehicles/day) | 1,834 | 2,109 | 1,355 |
The average commute time in Trenton is 22 minutes, shorter than the 26 minutes in New Jersey.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
Trenton has a education index of F, which means it scores poorly in education.
| Metric | Trenton | New Jersey Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 14.5% | 39.6% | 31.6% |
| Average household size | 2.73 | 2.61 | 2.53 |
Health
Trenton has a health index of C, which means it is somewhat healthy.
| Metric | Trenton | New Jersey Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 74.1 | 79.4 | 78.3 |
| Self-rated poor health | 23.4% | 12.9% | 16.3% |
| Smokers | 22.8% | 14.2% | 19.0% |
Frequently Asked Questions
Common questions about Trenton, New Jersey.
How big is Trenton, New Jersey by population?
About 90,225 people live in Trenton, New Jersey, in 31,912 households of 2.7 people on average. The median age is 33.7, so residents are younger than the U.S. median of 37.3 by about 4 years.
Is Trenton, New Jersey urban or rural?
Averaged over its land area, Trenton, New Jersey has 10,997 people per square mile, a density typical of a city. That is about 127 times the U.S. average of 86.
Is Trenton, New Jersey an affordable place to live?
The median home costs 4.7 times the median household income ($244,261 against $52,369), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,292 a month takes about 30% of the median household's income, right at the 30% level at which HUD considers renters cost-burdened.
Is unemployment high in Trenton, New Jersey?
Unemployment in Trenton, New Jersey is 10.1%, well above the U.S. rate of 5.2%, so job seekers may face more competition than elsewhere.
How common is a college degree in Trenton, New Jersey?
14.5% of adults in Trenton, New Jersey hold a bachelor's degree or higher (about 1 in 7), well below the U.S. share of 31.6%.
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