Princeton borough, New Jersey demographics
Population: 30,717
Median age: 28.9
Median household income: 165,149
Princeton is a borough in Mercer County, New Jersey, United States.
Demographics, population, home values, social and economic characteristics of Princeton borough, NJ.
Population
| 2021 | 30,717 |
| 2020 | 31,161 |
| 2019 | 31,000 |
| 2018 | 30,728 |
| 2017 | 30,722 |
| 2016 | 30,168 |
| 2015 | 28,936 |
| 2014 | 28,940 |
| 2013 | 28,621 |
| 2012 | 12,342 |
| 2011 | 12,384 |
| 2010 | 12,533 |
Census data for Princeton borough, New Jersey
Demographic and housing estimates in Princeton borough, New Jersey
| Total population | 30,717 |
| Male | 15,306 |
| Female | 15,411 |
| Total population | 30,717 |
| Under 5 years | 1,111 |
| 5 to 9 years | 1,280 |
| 10 to 14 years | 2,549 |
| 15 to 19 years | 4,076 |
| 20 to 24 years | 4,548 |
| 25 to 34 years | 3,424 |
| 35 to 44 years | 2,569 |
| 45 to 54 years | 3,841 |
| 55 to 59 years | 1,613 |
| 60 to 64 years | 1,483 |
| 65 to 74 years | 2,324 |
| 75 to 84 years | 1,287 |
| 85 years and over | 612 |
| Median age (years) | 28.9 |
| Under 18 years | 6,120 |
| 16 years and over | 25,311 |
| 18 years and over | 24,597 |
| 21 years and over | 20,557 |
| 62 years and over | 4,914 |
| 65 years and over | 4,223 |
| Total population | 30,717 |
| One race | 28,820 |
| White | 21,205 |
| Black or African American | 2,059 |
| American Indian and Alaska Native | 203 |
| Asian | 5,076 |
| Native Hawaiian and Other Pacific Islander | 42 |
| Some other race | 235 |
| Two or more races | 1,897 |
| Citizen, VOTING AGE 18 and over population | 20,389 |
| Male Citizen, VOTING AGE 18 and over population | 10,136 |
| Female Citizen, VOTING AGE 18 and over population | 10,253 |
Social characteristics in Princeton borough, New Jersey
| Total households | 9,120 |
| Family households (families) | 5,378 |
| Married-couple family | 342 |
| Male householder, no wife present, family | 1,633 |
| Female householder, no husband present, family | 1,093 |
| Nonfamily households | 1,767 |
| Average household size | 2,749 |
| Average family size | 2.69 |
Economic characteristics in Princeton borough, New Jersey
| Total households | 9,120 |
| Less than $10,000 | 232 |
| $10,000 to $14,999 | 298 |
| $15,000 to $24,999 | 341 |
| $25,000 to $34,999 | 133 |
| $35,000 to $49,999 | 380 |
| $50,000 to $74,999 | 891 |
| $75,000 to $99,999 | 930 |
| $100,000 to $149,999 | 1,043 |
| $150,000 to $199,999 | 852 |
| $200,000 or more | 4,020 |
| Median household income (dollars) | 165,149 |
Housing characteristics in Princeton borough, New Jersey
| Total housing units | 10,236 |
| Occupied housing units | 9,120 |
| Vacant housing units | 1,116 |
| Total housing units | 10,236 |
| 1-unit, detached | 5,390 |
| 1-unit, attached | 1,796 |
| 2 units | 275 |
| 3 or 4 units | 631 |
| 5 to 9 units | 393 |
| 10 to 19 units | 449 |
| 20 or more units | 1,299 |
| Mobile home | 3 |
| Boat, RV, van, etc. | 0 |
| Total housing units | 10,236 |
| Built 2014 or later | 9 |
| Built 2010 to 2013 | 1,327 |
| Built 2000 to 2009 | 730 |
| Built 1990 to 1999 | 842 |
| Built 1980 to 1989 | 730 |
| Built 1970 to 1979 | 813 |
| Built 1960 to 1969 | 1,212 |
| Built 1950 to 1959 | 1,782 |
| Built 1940 to 1949 | 510 |
| Built 1939 or earlier | 2,281 |
| Total housing units | 10,236 |
| 1 room | 521 |
| 2 rooms | 471 |
| 3 rooms | 803 |
| 4 rooms | 1,388 |
| 5 rooms | 966 |
| 6 rooms | 1,031 |
| 7 rooms | 1,354 |
| 8 rooms | 1,213 |
| 9 rooms or more | 2,489 |
| Median rooms | 6.4 |
| Total housing units | 10,236 |
| No bedroom | 560 |
| 1 bedroom | 1,363 |
| 2 bedrooms | 1,862 |
| 3 bedrooms | 2,238 |
| 4 bedrooms | 2,625 |
| 5 or more bedrooms | 1,588 |
| Occupied housing units | 9,120 |
| Owner-occupied | 5,373 |
| Renter-occupied | 3,747 |
| Average household size of owner-occupied unit | 2.85 |
| Average household size of renter-occupied unit | 2.47 |
| Occupied housing units | 9,120 |
| Moved in 2017 or later | 1,065 |
| Moved in 2015 to 2016 | 3,378 |
| Moved in 2010 to 2014 | 1,169 |
| Moved in 2000 to 2009 | 1,718 |
| Moved in 1990 to 1999 | 890 |
| Moved in 1989 and earlier | 900 |
| Owner-occupied units | 5,373 |
| Less than $50,000 | 50 |
| $50,000 to $99,999 | 18 |
| $100,000 to $149,999 | 97 |
| $150,000 to $199,999 | 58 |
| $200,000 to $299,999 | 56 |
| $300,000 to $499,999 | 266 |
| $500,000 to $999,999 | 2,732 |
| $1,000,000 or more | 2,096 |
| Median (dollars) | 893,600 |
| Owner-occupied units | 5,373 |
| Housing units with a mortgage | 3,156 |
| Housing units without a mortgage | 2,217 |
| Occupied units paying rent | 3,629 |
| Less than $500 | 317 |
| $500 to $999 | 495 |
| $1,000 to $1,499 | 535 |
| $1,500 to $1,999 | 446 |
| $2,000 to $2,499 | 438 |
| $2,500 to $2,999 | 376 |
| $3,000 or more | 1,022 |
| Median (dollars) | 2,025 |
| No rent paid | 118 |
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