Census tract · Union County
Census Tract 342, Union County, New Jersey
Census Tract 342, GEOID 34039034200, in Union County, New Jersey, entirely within Roselle. 4,028 residents in the ACS 2020-2024 5-year estimates (±506); the 2020 Census counted 3,747.
Residents, 2020-2024
4,028
±506 (90% margin)
2020 Census count: 3,747
Median household income
$120,833
±$36,920 (90% margin)
Union County: $103,202
Median home value
$424,900
±$38,912 (90% margin)
Union County: $529,200
Median gross rent
$1,438
±$95 (90% margin)
Union County: $1,730
Where is Census Tract 342?
Census Tract 342 is one of 120 census tracts in Union County, New Jersey. It covers 0.41 square miles of land, 9,206 residents per square mile in 2020. Its GEOID, 34039034200, names it uniquely (how tract numbers and GEOIDs work).
| Place | Share of the tract |
|---|---|
| Roselle | 100% |
4 census tracts border Census Tract 342: Tract 340 ($73,171), Tract 341 ($95,197), Tract 343 ($104,850) and Tract 344 ($95,388). 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 342?
The 2020-2024 American Community Survey puts Census Tract 342's population at 4,028 (±506) in 1,366 households; the 2020 Census counted 3,747 residents and 1,313 housing units.
| Measure | Tract 342 | Roselle |
|---|---|---|
| Total population | 4,028 ±506 | 22,646 |
| Households | 1,366 ±147 | 8,407 |
| Average household size | 2.93 ±0.36 | 2.68 |
| Housing units | 1,390 ±143 | 8,687 |
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 342?
The median resident of Census Tract 342 is 33.9 years old; 21.7% are under 18 and 9.3% are 65 or older. The largest group is non-Hispanic Black residents at 43.7%, then Hispanic or Latino residents (of any race) at 35.9%. 28.2% of residents were born outside the United States.
| Measure | Tract 342 | Roselle |
|---|---|---|
| Median age | 33.9 ±3.9 | 39.4 |
| Under 18 years | 21.7% ±5.7 pts | 18.3% |
| 65 years and over | 9.3% ±2.1 pts | 14.7% |
| Hispanic or Latino (any race) | 35.9% ±8.7 pts | 44.2% |
| White alone, not Hispanic | 15.9% ±8.0 pts | 11.3% |
| Black or African American alone, not Hispanic | 43.7% ±8.3 pts | 39.7% |
| Asian alone, not Hispanic | 1.4% ±1.6 pts | 1.4% |
| American Indian and Alaska Native alone, not Hispanic | 0.5% ±1.0 pts | 0.4% |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.1 pts | 0.0% |
| Two or more races, not Hispanic | 1.8% ±2.4 pts | 1.4% |
| Some other race alone, not Hispanic | 0.7% ±1.1 pts | 1.6% |
| Born outside the United States | 28.2% ±7.9 pts | 33.7% |
| Speak a language other than English at home (age 5+) | 39.7% ±10.3 pts | 51.0% |
| Civilian veterans (age 18+) | 3.6% ±2.3 pts | 2.7% |
| With a disability | 8.6% ±3.8 pts | 10.7% |
| No health insurance coverage | 7.6% ±4.8 pts | 11.2% |
| High school graduate or higher (age 25+) | 90.6% ±4.6 pts | 85.0% |
| Bachelor's degree or higher (age 25+) | 34.1% ±8.9 pts | 27.1% |
| Graduate or professional degree (age 25+) | 11.6% ±5.1 pts | 10.1% |
| Lived in the same house a year earlier | 83.9% ±8.9 pts | 88.3% |
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 342 earn?
Half of the 1,366 households in Census Tract 342 earn less than $120,833 a year (±$36,920), against $103,202 across Union County: 42nd highest of the county's 118 tracts with a reliable estimate.
| Measure | Tract 342 | Roselle |
|---|---|---|
| Median household income | $120,833 ±$36,920 | $92,762 |
| Mean household income | $120,359 ±$15,550 | $114,289 |
| Per capita income | $41,818 ±$4,537 | $42,371 |
| People below the poverty line | 5.7% ±5.1 pts | 9.5% |
| Children under 18 below the poverty line | 10.3% ±14.7 pts | 17.4% |
| Households receiving SNAP | 1.3% ±2.3 pts | 7.1% |
| Households with a computer | 100.0% ±3.2 pts | 95.1% |
| Households with a broadband subscription | 93.6% ±5.2 pts | 92.1% |
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 342?
Owners occupy 61.1% of Census Tract 342's occupied homes and renters 38.9%. The median owner-occupied home is valued at $424,900 by its owner (±$38,912). The median renter pays $1,438 a month including utilities, and 40.4% of renters pay 35% or more of their income on rent.
| Measure | Tract 342 | Roselle |
|---|---|---|
| Median home value (owner-occupied) | $424,900 ±$38,912 | $379,900 |
| Median gross rent | $1,438 ±$95 | $1,567 |
| Renters paying 35% or more of income on rent | 40.4% ±19.7 pts | 44.4% |
| Median monthly owner costs, with a mortgage | $2,336 ±$251 | $2,734 |
| Owner-occupied homes | 61.1% ±10.0 pts | 54.7% |
| Renter-occupied homes | 38.9% ±10.0 pts | 45.3% |
| Housing units | 1,390 ±143 | 8,687 |
| Single-family detached homes | 66.8% ±8.7 pts | 51.9% |
| Mobile homes | 0.0% ±3.2 pts | 0.1% |
| Built 2020 or later | 0.0% ±3.2 pts | 1.3% |
| Built 2010 to 2019 | 0.0% ±3.2 pts | 9.1% |
| Built 1939 or earlier | 49.1% ±10.8 pts | 31.7% |
| Households with no vehicle | 9.2% ±5.9 pts | 10.6% |
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 342 get to work?
60.1% of Census Tract 342's workers drive alone and 15.6% work from home. The average trip to work takes 31.5 minutes. The unemployment rate in 2020-2024 averaged 6.4%.
| Measure | Tract 342 | Roselle |
|---|---|---|
| In the labor force (age 16+) | 78.8% ±4.8 pts | 74.2% |
| Unemployment rate | 6.4% ±2.6 pts | 8.0% |
| Drove alone to work | 60.1% ±8.8 pts | 64.2% |
| Carpooled | 9.8% ±6.2 pts | 9.4% |
| Public transportation | 6.9% ±5.6 pts | 10.1% |
| Walked | 2.8% ±3.0 pts | 1.5% |
| Worked from home | 15.6% ±7.1 pts | 10.3% |
| Mean travel time to work | 31.5 min ±4.2 | 33.1 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 342 compare with the other tracts in Union County?
Among Union County's tracts with a reliable estimate, Census Tract 342 ranks as shown below (1 = highest).
| Measure | In Union County | In Roselle |
|---|---|---|
| Population | 84th of 120 | 4th of 5 |
| Residents per square mile | 54th of 120 | 3rd of 5 |
| Median household income | 42nd of 118 | 1st of 5 |
| Per capita income | 66th of 119 | 3rd of 5 |
| Median home value | 73rd of 115 | 1st of 5 |
| Median gross rent | 99th of 113 | 4th of 5 |
| Bachelor's degree or higher | 56th of 114 | 2nd of 5 |
| Median age | 101st of 120 | 5th of 5 |
| Owner-occupied share | 51st of 115 | 2nd of 5 |
The tracts next to it on Union County's income ladder
| Tract | Rank | Median household income |
|---|---|---|
| Tract 333 | 39th | $127,086±$15,001 · within the margin of this tract |
| Tract 337 | 40th | $126,589±$24,040 · within the margin of this tract |
| Tract 329.01 | 41st | $126,119±$5,173 · within the margin of this tract |
| Tract 342 | 42nd | $120,833±$36,920 |
| Tract 331 | 43rd | $119,970±$39,346 · within the margin of this tract |
| Tract 354 | 44th | $118,954±$31,953 · within the margin of this tract |
| Tract 336 | 45th | $118,611±$32,324 · within the margin of this tract |
"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 342?
2 of the 18 figures for Census Tract 342 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