Union County, New Jersey
Union County, New Jersey
| Census | Population |
|---|---|
| 2000 | 522,541 |
| 2010 | 536,499 |
| 2020 | 575,345 |
As counted at each census, within the boundaries the area had then; the current estimate is in the glance card.
Sources: Census 2000 Summary File 1: total population, county level, state 34, retrieved November 14, 2026; Census 2010 Summary File 1: total population, county level, state 34, retrieved November 14, 2026; Census 2020 Redistricting Data (P.L. 94-171): total population, county level, state 34, retrieved November 14, 2026.
| Measure | Union County | New Jersey |
|---|---|---|
| Population | 572,549 | 9,267,014 |
| Median household income | $100,117 | $101,050 |
| Median age | 39.1 | 40.1 |
| Median home value | $488,800 | $427,600 |
| Bachelor’s degree or higher | 38.6% | 42.9% |
| Foreign-born residents | 32.8% | 23.5% |
| Owner-occupied homes | 57.6% | 63.7% |
| Mean commute to work | 30.7 minutes | 30.9 minutes |
Source: American Community Survey 5-year data profile 2019–2023, county level, state 34, retrieved November 14, 2026.
Median household income $100,117 · Share of households by income, American Community Survey 5-year 2019-2023, table S1901.
Source: American Community Survey 5-year subject table S1901 (household income) 2019–2023, county level, state 34, retrieved November 14, 2026.
- Owner occupied
- 116,188 units
- Renter occupied
- 85,475 units
- Vacancy rate
- 4.5%
Occupied housing units by tenure and the share of all units vacant, American Community Survey 5-year 2019-2023, table DP04.
Source: American Community Survey 5-year data profile 2019–2023, county level, state 34, retrieved November 14, 2026.
208,505 employees in 14,276 establishments with payroll in 2023, all sectors; employers themselves are not named in the source. County Business Patterns counts are published with noise.
Source: County Business Patterns 2023: employment by sector, county level, state 34, retrieved November 14, 2026.
Townships, towns and villages in Union County
- Berkeley Heights TownshipTownship
- Clark TownshipTownship
- Connecticut FarmsCensus designated place
- Cranford TownshipTownship
- CranfordCensus designated place
- ElizabethCity
- FanwoodBorough
- GarwoodBorough
- Hillside TownshipTownship
- Kean UniversityCensus designated place
- KenilworthBorough
- LindenCity
- MountainsideBorough
- New ProvidenceBorough
- PlainfieldCity
- RahwayCity
- RoselleBorough
- Roselle ParkBorough
- Scotch Plains TownshipTownship
- Springfield TownshipTownship
- SpringfieldCensus designated place
- SummitCity
- Union TownshipTownship
- UnionCensus designated place
- VauxhallCensus designated place
- WestfieldTown
- Winfield TownshipTownship
Neighboring counties
- Essex CountyPopulation 881,527 (2024 estimate)
- Hudson CountyPopulation 736,185 (2024 estimate)
- Middlesex CountyPopulation 890,119 (2024 estimate)
- Morris CountyPopulation 523,053 (2024 estimate)
- Richmond County, NYNo page yet
- Somerset CountyPopulation 357,467 (2024 estimate)
Sources: Census county adjacency file 2024, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 34, retrieved November 14, 2026.
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- Type
- County
- Land area
- 102.8 sq mi
- Water area
- 2.64 sq mi
- Population
- 594,160 (2024 estimate)
- Households
- 201,663
- Median age
- 39.1
- Median household income
- $100,117
- Median home value
- $488,800
- Median gross rent
- $1,664
- Owner-occupied homes
- 57.6%
- Bachelor’s degree or higher
- 38.6%
- Foreign-born residents
- 32.8%
- Mean commute to work
- 30.7 minutes
- Census GEOID
- 34039
Sources: Census Gazetteer 2025: counties, retrieved November 14, 2026; Census Population Estimates, Vintage 2024: subcounty totals, state 34, retrieved November 14, 2026; American Community Survey 5-year data profile 2019–2023, county level, state 34, retrieved November 14, 2026.
- ZIP codes
- 07016, 07023, 07027, 07033, 07036, 07060, 07062, 07063, 07065, 07066, 07076, 07081, 07083, 07088, 07090, 07092, 07201, 07202, 07203, 07204, 07205, 07206, 07208, 07901, 07922, 07974
- Metro area
- New York-Newark-Jersey City, NY-NJ
Sources: Census 2020 ZCTA relationship file: ZCTAs to counties, retrieved November 14, 2026; Census Gazetteer 2025: metropolitan and micropolitan areas, retrieved November 14, 2026.