Township · New Jersey
West Windsor Township, New Jersey
West Windsor Township, township, in Mercer County, New Jersey. West Windsor Township had 32,839 residents on July 1, 2025 by the Census Bureau's estimate, up 11.4% since 2020; the 2020 Census counted 29,518 and the ACS 2020-2024 5-year estimates put it at 30,479 (±48). GEOID 3402180240.
Residents, July 2025 estimate
32,839
Census Bureau estimate (no margin published)
2020 Census count: 29,518 · ACS 2020-2024: 30,479 ±48
Median household income
$197,190
±$8,491 (90% margin)
New Jersey: $103,556
Median home value
$776,400
±$19,434 (90% margin)
New Jersey: $454,400
Median gross rent
$2,327
±$181 (90% margin)
New Jersey: $1,720
Where is West Windsor Township and what county is it in?
West Windsor Township is a township in Mercer County, New Jersey. It covers 25.5 square miles of land, 1,155 residents per square mile in 2020.
One place lies inside West Windsor Township: Princeton Junction (CDP, 2,475 in 2020).
West Windsor Township is in the Trenton-Princeton, NJ metropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in West Windsor Township, and is it growing?
The Census Bureau estimates that 32,839 people lived in West Windsor Township on July 1, 2025, up 11.4% since 2020, faster than New Jersey (+2.8%). The 2020 Census counted 29,518 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 30,479 (±48).
| Measure | West Windsor Township | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 30,479±48 | 385,864 | +2,542 |
| Households | 11,552±471 | 144,114 | +1,614 |
| Average household size | 2.64±0.11 | 2.56 | −0.15 |
| Housing units | 11,944±464 | 151,138 | +1,390 |
West Windsor Township's population since 2000
From 21,907 in 2000 to 32,839 in 2025: up 49.9%. The 2000, 2010 and 2020 figures are census counts, each for West Windsor Township as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in West Windsor Township?
The median resident of West Windsor Township is 42.1 years old; 24.3% are under 18 and 14.3% are 65 or older. The largest group is non-Hispanic Asian residents at 51.9%, then non-Hispanic white residents at 31.9%. 46.8% of residents were born outside the United States.
| Measure | West Windsor Township | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 42.1±1.4 | 39.5 | no clear change |
| Under 18 years | 24.3%±1.9 pts | 22.0% | – |
| 65 years and over | 14.3%±1.3 pts | 16.0% | – |
| Male | 52.0%±1.5 pts | 49.4% | – |
| Hispanic or Latino (any race) | 7.5%±2.1 pts | 23.1% | +4.6 pts |
| White alone, not Hispanic | 31.9%±3.0 pts | 42.7% | −11.8 pts |
| Black or African American alone, not Hispanic | 4.0%±1.9 pts | 17.9% | no clear change |
| Asian alone, not Hispanic | 51.9%±3.3 pts | 12.3% | +4.8 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.1%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.2%±1.0 pts | 3.4% | – |
| Some other race alone, not Hispanic | 0.3%±0.2 pts | 0.5% | – |
| Born outside the United States | 46.8%±2.6 pts | 27.0% | +6.8 pts |
| Speak a language other than English at home (age 5+) | 53.8%±2.5 pts | 35.7% | – |
| Civilian veterans (age 18+) | 1.3%±0.7 pts | 3.4% | – |
| With a disability | 6.0%±0.9 pts | 10.7% | – |
| No health insurance coverage | 2.2%±0.8 pts | 7.9% | no clear change |
| High school graduate or higher (age 25+) | 98.3%±0.8 pts | 89.4% | – |
| Bachelor's degree or higher (age 25+) | 84.4%±2.4 pts | 45.4% | no clear change |
| Graduate or professional degree (age 25+) | 52.3%±3.3 pts | 21.2% | – |
| Lived in the same house a year earlier | 88.6%±2.0 pts | 88.0% | – |
| Moved from another state in the past year | 3.4%±1.1 pts | 2.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in West Windsor Township earn?
Half of West Windsor Township's 11,552 households earn less than $197,190 a year (±$8,491), against $100,645 in Mercer County and $103,556 in New Jersey. In 2015-2019 it was $208,371 in 2024 dollars; the margins of error cannot tell the two periods apart. 8.0% of residents live below the poverty line.
| Measure | West Windsor Township | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $197,190±$8,491 | $100,645 | no clear change |
| Mean household income | $236,871±$13,118 | $142,368 | – |
| Per capita income | $89,703±$5,965 | $53,765 | no clear change |
| People below the poverty line | 8.0%±3.3 pts | 10.3% | +6.2 pts |
| Children under 18 below the poverty line | 11.5%±7.7 pts | 13.2% | – |
| Households receiving SNAP | 3.5%±2.1 pts | 9.3% | – |
| Households with a computer | 99.1%±0.7 pts | 95.6% | – |
| Households with a broadband subscription | 97.8%±1.2 pts | 91.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in West Windsor Township?
Owners occupy 65.2% of West Windsor Township's occupied homes and renters 34.8%. The median owner-occupied home is valued at $776,400 by its owner (±$19,434). The median renter pays $2,327 a month including utilities, and 24.7% of renters pay 35% or more of their income on rent.
| Measure | West Windsor Township | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $776,400±$19,434 | $377,700 | no clear change |
| Median gross rent | $2,327±$181 | $1,623 | −$245 |
| Renters paying 35% or more of income on rent | 24.7%±7.6 pts | 41.3% | no clear change |
| Median monthly owner costs, with a mortgage | $4,000 or more | $2,615 | – |
| Owner-occupied homes | 65.2%±3.7 pts | 62.2% | −5.1 pts |
| Renter-occupied homes | 34.8%±3.7 pts | 37.8% | – |
| Housing units | 11,944±464 | 151,138 | +1,390 |
| Homeowner vacancy rate | 0.0%±0.6 pts | 0.4% | – |
| Rental vacancy rate | 3.5%±3.4 pts | 2.9% | – |
| Single-family detached homes | 55.0%±3.3 pts | 47.5% | – |
| Mobile homes | 0.0%±0.4 pts | 0.5% | – |
| Built 2020 or later | 0.5%±0.6 pts | 0.9% | – |
| Built 2010 to 2019 | 9.9%±2.4 pts | 4.8% | – |
| Built 1939 or earlier | 3.4%±2.0 pts | 17.9% | – |
| Households with no vehicle | 6.7%±2.5 pts | 11.2% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is West Windsor Township building?
Builders took permits for 464 new housing units in West Windsor Township in 2025 (370 in single-family houses), 14.1 per 1,000 residents against 2.9 across New Jersey.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in West Windsor Township work and get to work?
39.0% of West Windsor Township's workers drive alone and 40.6% work from home. The average trip to work takes 38.6 minutes. The unemployment rate in 2020-2024 averaged 3.5%.
| Measure | West Windsor Township | Mercer County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 69.3%±2.3 pts | 65.3% | – |
| Unemployment rate | 3.5%±1.2 pts | 6.3% | no clear change |
| Drove alone to work | 39.0%±3.9 pts | 60.2% | – |
| Carpooled | 5.4%±1.6 pts | 8.7% | – |
| Public transportation | 12.4%±2.4 pts | 4.6% | – |
| Walked | 1.0%±0.8 pts | 3.6% | – |
| Worked from home | 40.6%±4.0 pts | 19.5% | +30.8 pts |
| Mean travel time to work | 38.6 min±3.1 | 27.1 min | −6.7 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in West Windsor Township?
6 census tracts lie mostly in West Windsor Township (2020 census blocks). Their median household incomes run from $117,000 (Tract 43.13) to $250,000 or more (Tract 43.15).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 43.07Mercer County | 6,690 | $200,355 |
| Tract 43.14Mercer County | 5,865 | $167,458 |
| Tract 43.13Mercer County | 5,327 | $117,000 |
| Tract 43.06Mercer County | 4,924 | $250,000 or more |
| Tract 43.16Mercer County | 4,461 | $177,344 |
| Tract 43.15Mercer County | 3,212 | $250,000 or more |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in West Windsor Township) · Census block assignment files
How does West Windsor Township compare with other places in New Jersey?
By the Census Bureau's July 2025 estimates, West Windsor Township is the 308th-most populous of the 16,079 U.S. towns and townships that have one and the 47th-most populous of 241 in New Jersey.
West Windsor Township ranks 69th of 771 places in New Jersey with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 47th | 241 |
| Growth 2020-2025 (PEP) | 17th | 532 |
| Residents per square mile | 543rd | 787 |
| Median household income | 69th | 771 |
| Per capita income | 72nd | 785 |
| Median home value | 91st | 777 |
| Median gross rent | 104th | 701 |
| Poverty rate | 205th | 539 |
| Bachelor's degree or higher | 9th | 780 |
| Median age | 419th | 786 |
| Owner-occupied share | 584th | 777 |
| Work from home | 9th | 695 |
| Travel time to work | 64th | 787 |
West Windsor Township's figures with every place in New Jersey (CSV)
Every place in New Jersey, sortable · Compare West Windsor Township with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for West Windsor Township?
9 of the 57 figures for West Windsor Township on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for West Windsor Township are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.