City · New Jersey
Trenton, New Jersey
Trenton, city, in Mercer County, New Jersey. Trenton had 91,506 residents on July 1, 2025 by the Census Bureau's estimate, up 0.8% since 2020; the 2020 Census counted 90,871 and the ACS 2020-2024 5-year estimates put it at 90,338 (±38). GEOID 3474000.
Residents, July 2025 estimate
91,506
Census Bureau estimate (no margin published)
2020 Census count: 90,871 · ACS 2020-2024: 90,338 ±38
Median household income
$52,537
±$3,804 (90% margin)
New Jersey: $103,556
Median home value
$160,700
±$11,136 (90% margin)
New Jersey: $454,400
Median gross rent
$1,294
±$52 (90% margin)
New Jersey: $1,720
Where is Trenton and what county is it in?
Trenton is a city in Mercer County, New Jersey. It covers 7.6 square miles of land, 11,947 residents per square mile in 2020.
Trenton is in the Trenton-Princeton, NJ metropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Trenton, and is it growing?
The Census Bureau estimates that 91,506 people lived in Trenton on July 1, 2025, up 0.8% since 2020, slower than New Jersey (+2.8%). The 2020 Census counted 90,871 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 90,338 (±38).
| Measure | Trenton | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 90,338 ±38 | 385,864 | +6,926 |
| Households | 32,052 ±1,028 | 144,114 | +4,491 |
| Average household size | 2.74 ±0.09 | 2.56 | −0.15 |
| Housing units | 34,513 ±864 | 151,138 | no clear change |
Trenton's population since 2000
From 85,403 in 2000 to 91,506 in 2025: up 7.1%. The 2000, 2010 and 2020 figures are census counts, each for Trenton as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Trenton?
The median resident of Trenton is 34.8 years old; 27.8% are under 18 and 12.0% are 65 or older. The largest group is Hispanic or Latino residents (of any race) at 46.4%, then non-Hispanic Black residents at 40.0%. 30.9% of residents were born outside the United States.
| Measure | Trenton | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 34.8 ±1.0 | 39.5 | no clear change |
| Under 18 years | 27.8% ±1.2 pts | 22.0% | – |
| 65 years and over | 12.0% ±0.9 pts | 16.0% | – |
| Male | 49.9% ±1.2 pts | 49.4% | – |
| Hispanic or Latino (any race) | 46.4% ±1.8 pts | 23.1% | +8.3 pts |
| White alone, not Hispanic | 10.6% ±1.5 pts | 42.7% | no clear change |
| Black or African American alone, not Hispanic | 40.0% ±2.0 pts | 17.9% | −7.4 pts |
| Asian alone, not Hispanic | 0.4% ±0.3 pts | 12.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.4% ±0.8 pts | 3.4% | – |
| Some other race alone, not Hispanic | 0.2% ±0.1 pts | 0.5% | – |
| Born outside the United States | 30.9% ±2.6 pts | 27.0% | +6.8 pts |
| Speak a language other than English at home (age 5+) | 45.9% ±2.4 pts | 35.7% | – |
| Civilian veterans (age 18+) | 4.3% ±0.9 pts | 3.4% | – |
| With a disability | 14.4% ±1.4 pts | 10.7% | – |
| No health insurance coverage | 17.6% ±1.6 pts | 7.9% | no clear change |
| High school graduate or higher (age 25+) | 74.6% ±2.1 pts | 89.4% | – |
| Bachelor's degree or higher (age 25+) | 16.2% ±1.8 pts | 45.4% | +4.0 pts |
| Graduate or professional degree (age 25+) | 4.9% ±0.8 pts | 21.2% | – |
| Lived in the same house a year earlier | 88.0% ±1.9 pts | 88.0% | – |
| Moved from another state in the past year | 1.8% ±0.7 pts | 2.6% | – |
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 Trenton earn?
Half of Trenton's 32,052 households earn less than $52,537 a year (±$3,804), against $100,645 in Mercer County and $103,556 in New Jersey. In 2015-2019 the median was $43,569 in 2024 dollars, so it rose by $8,968 after inflation. 21.6% of residents live below the poverty line.
| Measure | Trenton | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $52,537 ±$3,804 | $100,645 | +$8,968 |
| Mean household income | $77,515 ±$11,632 | $142,368 | – |
| Per capita income | $28,236 ±$4,486 | $53,765 | no clear change |
| People below the poverty line | 21.6% ±2.4 pts | 10.3% | −7.1 pts |
| Children under 18 below the poverty line | 26.3% ±4.9 pts | 13.2% | −12.2 pts |
| Households receiving SNAP | 25.9% ±2.7 pts | 9.3% | – |
| Households with a computer | 90.4% ±1.7 pts | 95.6% | – |
| Households with a broadband subscription | 82.0% ±2.4 pts | 91.4% | – |
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 Trenton?
Owners occupy 37.9% of Trenton's occupied homes and renters 62.1%. The median owner-occupied home is valued at $160,700 by its owner (±$11,136). The median renter pays $1,294 a month including utilities, and 47.9% of renters pay 35% or more of their income on rent.
| Measure | Trenton | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $160,700 ±$11,136 | $377,700 | +$42,800 |
| Median gross rent | $1,294 ±$52 | $1,623 | no clear change |
| Renters paying 35% or more of income on rent | 47.9% ±4.1 pts | 41.3% | no clear change |
| Median monthly owner costs, with a mortgage | $1,717 ±$112 | $2,615 | – |
| Owner-occupied homes | 37.9% ±2.4 pts | 62.2% | no clear change |
| Renter-occupied homes | 62.1% ±2.4 pts | 37.8% | – |
| Housing units | 34,513 ±864 | 151,138 | no clear change |
| Homeowner vacancy rate | 1.5% ±1.0 pts | 0.4% | – |
| Rental vacancy rate | 4.3% ±1.1 pts | 2.9% | – |
| Single-family detached homes | 16.2% ±1.8 pts | 47.5% | – |
| Mobile homes | 0.2% ±0.2 pts | 0.5% | – |
| Built 2020 or later | 0.7% ±0.4 pts | 0.9% | – |
| Built 2010 to 2019 | 4.0% ±1.3 pts | 4.8% | – |
| Built 1939 or earlier | 38.1% ±2.5 pts | 17.9% | – |
| Households with no vehicle | 26.7% ±2.8 pts | 11.2% | – |
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 many new homes is Trenton building?
Builders took permits for 4 new housing units in Trenton in 2025 (4 in single-family houses), 0.0 per 1,000 residents against 2.9 across New Jersey.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Trenton work and get to work?
57.7% of Trenton's workers drive alone and 7.1% work from home. The average trip to work takes 26.9 minutes. The unemployment rate in 2020-2024 averaged 10.1%.
| Measure | Trenton | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 61.4% ±1.9 pts | 65.3% | – |
| Unemployment rate | 10.1% ±1.7 pts | 6.3% | no clear change |
| Drove alone to work | 57.7% ±3.3 pts | 60.2% | – |
| Carpooled | 15.8% ±2.6 pts | 8.7% | – |
| Public transportation | 6.6% ±1.5 pts | 4.6% | – |
| Walked | 3.9% ±1.3 pts | 3.6% | – |
| Worked from home | 7.1% ±1.4 pts | 19.5% | +5.4 pts |
| Mean travel time to work | 26.9 min ±1.4 | 27.1 min | +2.8 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
What census tracts are in Trenton?
25 census tracts lie mostly in Trenton (2020 census blocks). Their median household incomes run from $24,659 (Tract 10) to $87,632 (Tract 2).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 4Mercer County | 6,392 | $49,023 |
| Tract 21Mercer County | 6,310 | $28,720 |
| Tract 22Mercer County | 6,278 | $83,443 |
| Tract 5Mercer County | 6,052 | $52,679 |
| Tract 6Mercer County | 5,288 | $69,950 |
| Tract 3Mercer County | 4,719 | $61,147 |
| Tract 9Mercer County | 4,428 | $79,260 |
| Tract 18Mercer County | 4,178 | $57,734 |
| Tract 7Mercer County | 3,976 | $61,318 |
| Tract 17Mercer County | 3,910 | $36,790 |
| Tract 12Mercer County | 3,830 | $53,100 |
| Tract 11.02Mercer County | 3,809 | $33,035 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Trenton) · Census block assignment files
How does Trenton compare with other places in New Jersey?
By the Census Bureau's July 2025 estimates, Trenton is the 383rd-most populous of the 19,476 U.S. incorporated places that have one and the 5th-most populous of 323 in New Jersey.
Trenton ranks 752nd of 771 places in New Jersey with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 5th | 323 |
| Growth 2020-2025 (PEP) | 425th | 532 |
| Residents per square mile | 28th | 787 |
| Median household income | 752nd | 771 |
| Per capita income | 752nd | 785 |
| Median home value | 765th | 777 |
| Median gross rent | 631st | 701 |
| Poverty rate | 25th | 539 |
| Bachelor's degree or higher | 754th | 780 |
| Median age | 735th | 786 |
| Owner-occupied share | 735th | 777 |
| Work from home | 643rd | 695 |
| Travel time to work | 573rd | 787 |
Trenton's figures with every place in New Jersey (CSV)
Every place in New Jersey, sortable · Compare Trenton with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Trenton?
5 of the 57 figures for Trenton 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.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. 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 · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Trenton are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Trenton.