Princeton Population

1870–2026

31,674

2026 projection

3.2% since 2020 (increase)

05K10K15K20K25K30K35K18801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates, including 2010–2020 intercensal estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Princeton. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202631,674+2050.65%
202531,469+230.07%
202431,446+8172.67%
202330,629+1910.63%
202230,438-1450.47%
202130,583-980.32%
202030,681-2310.75%
201930,912-1730.56%
201831,085-1110.36%
201731,196+3441.12%

Showing 10 of 31 years.

The 2020 row compares the April 1 Census count with the July 1, 2019 estimate (about nine months). Its Growth and Annual change therefore do not represent a full year.

Princeton Demographics

28.5median age

Median age

Female29.9 yrs
Male27.5 yrs

Adults

24,967
3,999 seniors (65+) · 16% of adults20,968 other adults

Sex

Female 50.7% · 15,589Male 49.3% · 15,167

Population by age

MaleFemale85+ years, male: 34085+ years, female: 26880–84 years, male: 30580–84 years, female: 32175–79 years, male: 22075–79 years, female: 37870–74 years, male: 42170–74 years, female: 57565–69 years, male: 64265–69 years, female: 52960–64 years, male: 66460–64 years, female: 74055–59 years, male: 73655–59 years, female: 78950–54 years, male: 71550–54 years, female: 94145–49 years, male: 1,12045–49 years, female: 1,27940–44 years, male: 62440–44 years, female: 91035–39 years, male: 65635–39 years, female: 56130–34 years, male: 61530–34 years, female: 48125–29 years, male: 1,48425–29 years, female: 76820–24 years, male: 2,58320–24 years, female: 2,26415–19 years, male: 1,78615–19 years, female: 2,42010–14 years, male: 1,17810–14 years, female: 1,2775–9 years, male: 6595–9 years, female: 5780–4 years, male: 4190–4 years, female: 51085+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 308 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Princeton Income

$192,079median household income

Median household income

$192,079

Half of households earn more, half earn less

Median earnings

$101,988

Typical yearly pay for a worker 25 or older.

Poverty rate

6.1%

About 1 in 16 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Princeton Marital Status

45% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married45%46%43%
Never married48%49%46%
Divorced5%3%7%
Widowed3%2%4%
Separated<1%<1%<1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

14 sources

Population

American Community Survey, 2024 5-year

Additional sources