PlainCities

Census tract · Mercer County

Census Tract 43.16, Mercer County, New Jersey

Census Tract 43.16, GEOID 34021004316, in Mercer County, New Jersey, entirely within West Windsor Township. 4,461 residents in the ACS 2020-2024 5-year estimates (±545); the 2020 Census counted 4,791.

Residents, 2020-2024

4,461

±545 (90% margin)
2020 Census count: 4,791

Median household income

$177,344

±$40,374 (90% margin)
Mercer County: $100,645

Median home value

$800,500

±$57,559 (90% margin)
Mercer County: $377,700

Median gross rent

not published


Mercer County: $1,623

Where is Census Tract 43.16?

Census Tract 43.16 is one of 84 census tracts in Mercer County, New Jersey. It covers 5.40 square miles of land, 887 residents per square mile in 2020. Its GEOID, 34021004316, names it uniquely (how tract numbers and GEOIDs work).

Places Census Tract 43.16 lies in (share of its 2020 census blocks)
PlaceShare of the tract
West Windsor Township100%
Census Tract 43.16 (marked with a dot) in Mercer County, New Jersey. Boundaries: Census Bureau 2024.
43.0643.1243.1544.0644.0786.04 43.16 2 mi
Census Tract 43.16 (shaded) and the tracts that border it, numbered. Boundaries: Census Bureau 2024 cartographic boundary file, 1:500,000. Dashed: tracts outside Mercer County.

6 census tracts border Census Tract 43.16: Tract 43.06 ($250,000 or more), Tract 43.12 ($231,544), Tract 43.15 ($250,000 or more), Tract 44.06 ($93,176), Tract 44.07 ($107,778) and Tract 86.04 in Middlesex County ($125,976). The figure in brackets is each tract's median household income.

Whether a tract counts as low- or moderate-income for bank lending (the Community Reinvestment Act) is set by the FFIEC against its metro area's family income: look it up in the FFIEC census geocoder.

Source: 2024 Gazetteer and 2020 block assignment files, U.S. Census Bureau · Census reference files

How many people live in Census Tract 43.16?

The 2020-2024 American Community Survey puts Census Tract 43.16's population at 4,461 (±545) in 1,848 households; the 2020 Census counted 4,791 residents and 1,934 housing units.

Counts, ACS 2020-2024 5-year estimates
Measure Tract 43.16West Windsor TownshipMercer CountyNew Jersey
Total population 4,461 ±545 30,479 385,864 9,343,809
Households 1,848 ±178 11,552 144,114 3,507,701
Average household size 2.41 ±0.18 2.64 2.56 2.62
Housing units 1,931 ±184 11,944 151,138 3,791,354

Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 Census P.L. 94-171 · Check it at data.census.gov

Who lives in Census Tract 43.16?

The median resident of Census Tract 43.16 is 55.0 years old; 18.6% are under 18 and 35.9% are 65 or older. The largest group is non-Hispanic Asian residents at 48.7%, then non-Hispanic white residents at 43.7%. 41.0% of residents were born outside the United States.

Age, origin, education, ACS 2020-2024 5-year estimates. Race groups are non-Hispanic; Hispanic includes any race.
Measure Tract 43.16West Windsor TownshipMercer CountyNew Jersey
Median age 55.0 ±7.1 42.1 39.5 40.1
Under 18 years 18.6% ±4.3 pts 24.3% 22.0% 21.8%
65 years and over 35.9% ±5.9 pts 14.3% 16.0% 17.2%
Hispanic or Latino (any race) 1.6% ±1.6 pts 7.5% 23.1% 22.5%
White alone, not Hispanic 43.7% ±8.1 pts 31.9% 42.7% 50.9%
Black or African American alone, not Hispanic 1.6% ±1.3 pts 4.0% 17.9% 12.2%
Asian alone, not Hispanic 48.7% ±6.6 pts 51.9% 12.3% 10.0%
American Indian and Alaska Native alone, not Hispanic 0.0% ±1.0 pts 0.1% 0.1% 0.1%
Native Hawaiian and Other Pacific Islander alone, not Hispanic 0.0% ±1.0 pts 0.0% 0.0% 0.0%
Two or more races, not Hispanic 3.8% ±3.7 pts 4.2% 3.4% 3.5%
Some other race alone, not Hispanic 0.7% ±1.0 pts 0.3% 0.5% 0.8%
Born outside the United States 41.0% ±4.7 pts 46.8% 27.0% 23.9%
Speak a language other than English at home (age 5+) 47.7% ±7.2 pts 53.8% 35.7% 33.1%
Civilian veterans (age 18+) 3.4% ±1.9 pts 1.3% 3.4% 3.7%
With a disability 8.5% ±3.0 pts 6.0% 10.7% 10.8%
No health insurance coverage 0.7% ±0.7 pts 2.2% 7.9% 7.5%
High school graduate or higher (age 25+) 98.7% ±1.4 pts 98.3% 89.4% 90.7%
Bachelor's degree or higher (age 25+) 79.1% ±4.9 pts 84.4% 45.4% 43.6%
Graduate or professional degree (age 25+) 55.0% ±5.7 pts 52.3% 21.2% 17.6%
Lived in the same house a year earlier 94.6% ±3.9 pts 88.6% 88.0% 90.4%

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 Census Tract 43.16 earn?

Half of the 1,848 households in Census Tract 43.16 earn less than $177,344 a year (±$40,374), against $100,645 across Mercer County: 14th highest of the county's 81 tracts with a reliable estimate.

Income and poverty in 2024 dollars, ACS 2020-2024 5-year estimates
Measure Tract 43.16West Windsor TownshipMercer CountyNew Jersey
Median household income $177,344 ±$40,374 $197,190 $100,645 $103,556
Mean household income $258,486 ±$33,205 $236,871 $142,368 $143,363
Per capita income $106,604 ±$13,946 $89,703 $53,765 $54,253
People below the poverty line 4.4% ±2.9 pts 8.0% 10.3% 9.7%
Children under 18 below the poverty line 0.0% ±5.3 pts 11.5% 13.2% 13.0%
Households receiving SNAP 6.4% ±4.2 pts 3.5% 9.3% 9.1%
Households with a computer 97.5% ±2.5 pts 99.1% 95.6% 95.9%
Households with a broadband subscription 97.5% ±2.5 pts 97.8% 91.4% 92.8%

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 Census Tract 43.16?

Owners occupy 92.7% of Census Tract 43.16's occupied homes and renters 7.3%. The median owner-occupied home is valued at $800,500 by its owner (±$57,559).

Housing, ACS 2020-2024 5-year estimates
Measure Tract 43.16West Windsor TownshipMercer CountyNew Jersey
Median home value (owner-occupied) $800,500 ±$57,559 $776,400 $377,700 $454,400
Renters paying 35% or more of income on rent 80.2% ±26.8 pts 24.7% 41.3% 42.7%
Median monthly owner costs, with a mortgage $4,000 or more $4,000 or more $2,615 $2,829
Owner-occupied homes 92.7% ±3.9 pts 65.2% 62.2% 63.8%
Renter-occupied homes 7.3% ±3.9 pts 34.8% 37.8% 36.2%
Housing units 1,931 ±184 11,944 151,138 3,791,354
Single-family detached homes 88.0% ±6.3 pts 55.0% 47.5% 52.6%
Mobile homes 0.0% ±2.3 pts 0.0% 0.5% 0.9%
Built 2020 or later 2.2% ±3.3 pts 0.5% 0.9% 1.1%
Built 2010 to 2019 3.6% ±1.8 pts 9.9% 4.8% 6.2%
Built 1939 or earlier 0.5% ±0.7 pts 3.4% 17.9% 17.4%
Households with no vehicle 6.3% ±4.0 pts 6.7% 11.2% 11.1%

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 do people in Census Tract 43.16 get to work?

39.2% of Census Tract 43.16's workers drive alone and 44.5% work from home. The average trip to work takes 39.8 minutes.

Work and commuting, ACS 2020-2024 5-year estimates
Measure Tract 43.16West Windsor TownshipMercer CountyNew Jersey
In the labor force (age 16+) 53.4% ±5.3 pts 69.3% 65.3% 66.4%
Unemployment rate 2.3% ±1.9 pts 3.5% 6.3% 6.3%
Drove alone to work 39.2% ±7.8 pts 39.0% 60.2% 62.2%
Carpooled 3.2% ±3.0 pts 5.4% 8.7% 7.7%
Public transportation 10.9% ±5.2 pts 12.4% 4.6% 8.1%
Walked 0.5% ±0.8 pts 1.0% 3.6% 2.6%
Worked from home 44.5% ±10.7 pts 40.6% 19.5% 16.8%
Mean travel time to work 39.8 min ±5.5 38.6 min 27.1 min 30.5 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

How does Census Tract 43.16 compare with the other tracts in Mercer County?

Among Mercer County's tracts with a reliable estimate, Census Tract 43.16 ranks as shown below (1 = highest).

Census Tract 43.16's rank among the tracts of Mercer County
MeasureIn Mercer County
Population47th of 84
Residents per square mile74th of 84
Median household income14th of 81
Per capita income6th of 83
Median home value10th of 76
Bachelor's degree or higher11th of 79
Median age2nd of 84
Owner-occupied share6th of 81

The tracts next to it on Mercer County's income ladder

Median household income, ACS 2020-2024 5-year estimates
TractRankMedian household incomeResidents
Tract 45.0111th$197,434±$49,316 · within the margin of this tract6,678
Tract 39.0312th$192,586±$25,175 · within the margin of this tract2,827
Tract 42.0613th$181,528±$64,204 · within the margin of this tract2,401
Tract 43.1614th$177,344±$40,3744,461
Tract 3815th$171,250±$32,106 · within the margin of this tract6,999
Tract 43.1416th$167,458±$41,042 · within the margin of this tract5,865
Tract 39.0417th$164,554±$29,706 · within the margin of this tract5,951

"Within the margin": the two incomes differ by less than their combined 90% margins, so the survey cannot say which is higher and the ranks between them are not firm.

Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · How ranks are computed

How reliable are the figures for Census Tract 43.16?

3 of the 17 figures for Census Tract 43.16 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.

A census tract's figures rest on a few hundred sampled households over five years, so its margins are wider than a city's. Two tracts differ only when the gap between them is larger than their combined 90% margin (the square root of the sum of the two squared margins). 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 · Check it at data.census.gov

How these figures are made: methodology and release checks · reading a margin of error · every state · corrections