What is the population of Princeton?

Princeton has 30,451 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #31 of 700 in New Jersey.

What is the median household income in Princeton?

Median household income in Princeton is $184,113 a year, 134.4% above the national figure of $78,538.

How much does it cost to rent or buy in Princeton?

Median gross rent is $2,448 a month and the median home value is $1,040,400, so rent absorbs about 16% of median household income.

Is Princeton affordable compared with the rest of the US?

Homes cost about 5.7× the local median income here versus roughly 3.9× nationally, so Princeton is less affordable to buy in than the typical US market, and rent takes 16% of median income against the 30% cost-burden line.

Aerial view of a dense city center, illustrating the US cities ZIP code directory

New Jersey · Census place 60900

Princeton, NJ population, income and ZIP codes

Quick answer

The population of the city of Princeton, New Jersey (Princeton, NJ — Census place “Princeton”) is 30,451 residents, ranking #31 of 700 places in New Jersey. Median household income is $184,113, the median home is worth $1,040,400 and median gross rent runs $2,448 a month. Looking for the Princeton New Jersey ZIP code list? 3 ZIP codes serve Princeton, NJ: 08540, 08542, 08544.

Population: 30,451Princeton residents
Median household income: $184,113Past 12 months, inflation adjusted
Median home value: $1,040,400Owner-occupied units
Median gross rent: $2,448Rent plus utilities, monthly
Median age: 27.5 yrsAll residents
Homeownership rate: 56%Owner-occupied households

Princeton ZIP codes (New Jersey)

Census ZCTAs whose delivery area overlaps Princeton.

The Princeton NJ ZIP code list below covers 3 ZIP codes. Open any one for its population, income, housing and rent profile.

What the numbers mean in Princeton

Housing cost measured against local earnings.

A household earning the Princeton median would spend about 16% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 5.7× the median household income; nationally that ratio sits near 4.5×. Poverty affects 6.8% of residents and 56% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

Princeton, NJ in context

How this area compares with national benchmarks.

Princeton is a small city in New Jersey, with 30,451 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #31 of 700 ranked by population — larger than 95% of them. The median age here is 27.5 years against 39.1 nationally, a distinctly younger profile, typical of places with students, military posts or a fast-growing family population. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in Princeton earn a median of $184,113 a year, 134.4% above the national figure of $78,538 and 72% above the $106,926 median for the 543 New Jersey cities we cover. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 6.8% of residents here, below the 12.4% national rate.

The typical owner-occupied home in Princeton is valued at $1,040,400, 242.9% above the national figure and 152% above the $412,500 peer median, while median gross rent runs $2,448 a month, 74.1% above the national figure, or roughly $29,376 across a full year. A household on the local median income would put about 16% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 5.7×, against roughly 3.9× nationally, so buying is harder here than in the average US market. 56% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

A median age of 27.5 means a large student or early-career population; income medians in places like this understate household resources, since many residents are supported from outside the address.

No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Compare with nearby places

Places of similar size in New Jersey.

More New Jersey coverage.

Frequently asked questions

Common questions about this area.

What is the population of Princeton?: Princeton has 30,451 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #31 of 700 in New Jersey.
What is the median household income in Princeton?: Median household income in Princeton is $184,113 a year, 134.4% above the national figure of $78,538.
How much does it cost to rent or buy in Princeton?: Median gross rent is $2,448 a month and the median home value is $1,040,400, so rent absorbs about 16% of median household income.
Is Princeton affordable compared with the rest of the US?: Homes cost about 5.7× the local median income here versus roughly 3.9× nationally, so Princeton is less affordable to buy in than the typical US market, and rent takes 16% of median income against the 30% cost-burden line.
How current is this Princeton data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.