Demographics of Princeton, New Jersey

Princeton, New Jersey had 31,469 people on July 1, 2025, by the Census Bureau’s estimate: +844 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Princeton, in four figures

31,469
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 30,756 ±72.; +2.8%
Change since July 2020: +844 people.; 28.5 ±1.5
Median age: ACS 2020–⁠2024.; $192,079 ±$24,402
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Princeton, New Jersey's population grew 2.8% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Princeton, New Jersey's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

U.S. Census Bureau — Census Bureau population estimates — incorporated places and New England towns

About this chart

The figures

Princeton, New Jersey's population grew 2.8% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Princeton, New Jersey's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	30,625	100.0	100.0
2021	30,583	99.9	100.2
2022	30,438	99.4	100.7
2023	30,629	100.0	101.6
2024	31,446	102.7	102.5
2025	31,469	102.8	103.1

Population of Princeton, New Jersey on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	30,625	—
2021	30,583	−42
2022	30,438	−145
2023	30,629	+191
2024	31,446	+817
2025	31,469	+23

Age, 2020–2024

The median age is 28.5 ±1.5: for men 27.5 ±1.7 and for women 29.9 ±3.0. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Princeton by age, ACS 2020–2024
Age	People	Share	New Jersey	United States
Under 5	929 ±212	3.0% ±0.7	5.6% ±<0.1	5.6% ±<0.1
5 to 17	4,860 ±571	15.8% ±1.9	16.2% ±0.1	16.3% ±<0.1
18 to 24	7,885 ±663	25.6% ±2.2	8.4% ±0.1	9.1% ±<0.1
25 to 44	6,099 ±591	19.8% ±1.9	26.2% ±0.1	26.9% ±<0.1
45 to 64	6,984 ±647	22.7% ±2.1	26.5% ±0.1	24.8% ±<0.1
65 and over	3,999 ±351	13.0% ±1.1	17.2% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $192,079 ±$24,402, and income per person $87,301 ±$5,236, in 2024 dollars. The median is $103,556 ±$513 in New Jersey and $80,734 ±$166 in the United States.

Households by income

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Households in Princeton by income, ACS 2020–2024
Household income	Households	Share	New Jersey	United States
Under $25,000	732 ±182	7.9% ±1.9	11.6% ±0.2	14.6% ±<0.1
$25,000 to $49,999	552 ±180	5.9% ±1.9	12.8% ±0.2	16.7% ±<0.1
$50,000 to $74,999	793 ±232	8.5% ±2.5	12.8% ±0.2	15.5% ±<0.1
$75,000 to $99,999	902 ±265	9.7% ±2.8	11.3% ±0.2	12.6% ±<0.1
$100,000 to $149,999	872 ±174	9.4% ±1.8	18.1% ±0.2	17.5% ±<0.1
$150,000 to $199,999	874 ±198	9.4% ±2.1	11.8% ±0.2	9.6% ±<0.1
$200,000 or more	4,575 ±336	49.2% ±3.0	21.6% ±0.2	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Princeton by age, ACS 2020–2024
Age	Below poverty	Rate	New Jersey	United States
All ages	1,446 ±334	6.1% ±1.4	9.7% ±0.2	12.5% ±0.1
Under 18	214 ±97	3.7% ±1.6	13.0% ±0.3	16.1% ±0.1
18 to 59	859 ±237	6.8% ±1.8	8.6% ±0.2	11.6% ±0.1
60 and over	373 ±159	7.0% ±2.9	9.3% ±0.2	11.0% ±<0.1

Housing, 2020–2024

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Housing in Princeton, ACS 2020–2024
Measure	Princeton	New Jersey	United States
Housing units	9,906 ±388	3,791,354 ±469	143,775,355 ±10,234
Occupied	93.9% ±1.0	92.5% ±0.1	89.9% ±0.1
Vacant	6.1% ±2.2	7.5% ±0.1	10.1% ±0.1
Owner occupied	55.4% ±3.4	63.8% ±0.3	65.2% ±0.3
Renter occupied	44.6% ±4.3	36.2% ±0.2	34.8% ±0.1
Median home value	$1,050,600 ±$46,184	$454,400 ±$1,150	$332,700 ±$236
Median gross rent	$2,636 ±$281	$1,720 ±$7	$1,413 ±$2
Median year built	1965 ±3	1970 ±1	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Princeton by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	New Jersey	United States
Hispanic or Latino	2,457 ±479	8.0% ±1.6	22.5% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	17,792 ±906	57.8% ±2.9	50.9% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	1,885 ±345	6.1% ±1.1	12.2% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	6,618 ±653	21.5% ±2.1	10.0% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	6 to 158	< 0.1% to 0.5%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 32	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	83 to 429	0.3% to 1.4%	0.8% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	1,653 ±330	5.4% ±1.1	3.5% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Princeton by place of birth and citizenship, ACS 2020–2024
Born	People	Share	New Jersey	United States
Born in the state	7,699 ±745	25.0% ±2.4	50.8% ±0.2	57.3% ±<0.1
Born in another state	12,819 ±751	41.7% ±2.4	22.7% ±0.1	26.9% ±<0.1
Born a citizen outside the states	747 ±234	2.4% ±0.8	2.6% ±<0.1	1.7% ±<0.1
Born abroad	9,491 ±751	30.9% ±2.4	23.9% ±0.2	14.1% ±<0.1
Naturalized citizens	4,276 ±530	13.9% ±1.7	13.5% ±0.1	7.4% ±<0.1
Not citizens	5,215 ±741	17.0% ±2.4	10.5% ±0.1	6.8% ±<0.1

Princeton among the places of New Jersey

31st of 295 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the New Jersey page.

Places of New Jersey near Princeton in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Atlantic City city	38,632 ±47
Fair Lawn borough	35,610 ±78
Garfield city	32,783 ±46
Long Branch city	32,530 ±33
Westfield town	31,111 ±47
Princeton	30,756 ±72
Rahway city	30,109 ±33
Englewood city	29,638 ±38
Bergenfield borough	28,450 ±66
Old Bridge CDP	28,236 ±1,362
Millville city	27,511 ±36

Elsewhere on the site

Reported crime in Princeton, New Jersey

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Data retrieved September 25, 2026