Princeton

Population: 30,451
Median household income: $184,113
Median home value: $1,040,400

Princeton is a community in Mercer County, New Jersey, home to 30,451 residents. The median household income of $184,113 is above the Mercer County median ($96,333).

Between 2019 and 2023, Princeton's population declined 1.8% from 31,000 to 30,451, while its median home value rose 20.1% from $866,200 to $1,040,400.

6.8% of residents live below the poverty line. Households average 2.58 people.

Demographics

ACS 2019–2023

Population: 30,451
Median age: 27.5 yrs
Median household income: $184,113
Median home value: $1,040,400
Median gross rent: $2,448
Housing units: 9,737
Homeownership rate: 56.0%
Bachelor's degree or higher: 84.6%
Unemployment rate: 4.5%

Trends

ACS 5-year · 2019–2023

Population

31,00030,451

Median household income

$137,672$184,113

Median home value

$866,200$1,040,400

Median gross rent

$1,532$2,448

Year	Population	Median household income	Median home value	Median gross rent
2019	31,000	$137,672	$866,200	$1,532
2020	31,161	$146,127	$872,400	$1,704
2021	30,717	$165,149	$893,600	$2,025
2022	30,450	$176,695	$971,200	$2,320
2023	30,451	$184,113	$1,040,400	$2,448

Each year is a US Census Bureau ACS 5-year estimate ending that year.

Age distribution

Under 52.9%

5 to 1716.1%

18 to 2426.9%

25 to 3410.2%

35 to 448.5%

45 to 5412.9%

55 to 649.7%

65 to 747.2%

75 and over5.6%

	Count	Share
Under 5	873	2.9%
5 to 17	4,912	16.1%
18 to 24	8,198	26.9%
25 to 34	3,113	10.2%
35 to 44	2,589	8.5%
45 to 54	3,923	12.9%
55 to 64	2,946	9.7%
65 to 74	2,198	7.2%
75 and over	1,699	5.6%

Race & ethnicity

	Count	Share
White (non-Hispanic)	18,323	60.2%
Black or African American	1,872	6.1%
American Indian & Alaska Native	121	0.4%
Asian	5,987	19.7%
Native Hawaiian & Pacific Islander	12	0.0%
Some other race	129	0.4%
Two or more races	1,543	5.1%
Hispanic or Latino (any race)	2,464	8.1%

Educational attainment (age 25+)

No high school diploma1.9%

High school graduate4.4%

Some college or associate's9.0%

Bachelor's degree29.0%

Graduate or professional degree55.7%

	Count	Share
No high school diploma	319	1.9%
High school graduate	728	4.4%
Some college or associate's	1,483	9.0%
Bachelor's degree	4,771	29.0%
Graduate or professional degree	9,167	55.7%

Commute to work

Mean travel time to work: 24 min

Drove alone33.3%

Carpooled2.2%

Public transit6.7%

Walked20.0%

Bicycle5.1%

Worked from home31.7%

Other means1.0%

How workers get to work

	Count	Share
Drove alone	4,739	33.3%
Carpooled	306	2.2%
Public transit	955	6.7%
Walked	2,849	20.0%
Bicycle	723	5.1%
Worked from home	4,515	31.7%
Other means	136	1.0%

Travel time

	Count	Share
Under 15 min	4,190	43.2%
15 to 29 min	3,060	31.5%
30 to 44 min	1,037	10.7%
45 to 59 min	405	4.2%
60+ min	1,016	10.5%

Households

Average household size: 2.58
Poverty rate: 6.8% (1,591 of 23,250)

	Count	Share
Family households	6,056	67.3%
Nonfamily households	2,946	32.7%

Housing

Median year structure built: 1965

Occupancy

	Count	Share
Occupied	9,002	92.5%
Vacant	735	7.5%

Tenure (of occupied units)

	Count	Share
Owner-occupied	5,043	56.0%
Renter-occupied	3,959	44.0%

1-unit, detached53.1%

1-unit, attached18.1%

2 to 4 units6.6%

5 to 19 units8.5%

20 or more units13.6%

Mobile home & other0.0%

Units in structure

	Count	Share
1-unit, detached	5,174	53.1%
1-unit, attached	1,762	18.1%
2 to 4 units	640	6.6%
5 to 19 units	831	8.5%
20 or more units	1,327	13.6%
Mobile home & other	3	0.0%

Geography

Place GEOID: 3460900
Type (LSAD): 00
Land area: 18 sq mi
Water area: 0.47 sq mi
Center point: 40.3582, -74.6667