County ZIP codes · New Jersey · FIPS 34039
Union County, NJ ZIP Codes
Union County, New Jersey has 31 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 27 residential and 4 for PO boxes or a single organization. 26 of the residential ones lie mainly in Union County and 1 mainly in a neighboring county; 4 cross the county line. Median household income ranges from $60,080 in 07201 (Elizabeth) to $232,629 in 07090 (Westfield) (Census Bureau, ACS 2020-2024).
- ACS2020-24
- Census2020
Where are the ZIP codes of Union County?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
How different are its ZIP codes?
The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $91,882 and $155,972.
They carry 23 postal town names.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).
All 27 residential ZIP codes in Union County
26 ZIP codes lie mainly in Union County; 1 more reaches into it from a neighboring county and follows the first table.
| In this county | ||||||
|---|---|---|---|---|---|---|
| 07083 | Union | 58,170 | 6,666 | $122k | $455k | 100% |
| 07060 | Plainfield | 48,363 | 9,675 | $79k | $394k | 62% |
| 07036 | Linden | 45,671 | 4,202 | $92k | $418k | 100% |
| 07202 | Elizabeth | 44,968 | 19,441 | $71k | $432k | 100% |
| 07208 | Elizabeth | 31,937 | 17,822 | $66k | $459k | 100% |
| 07206 | Elizabethport | 31,930 | 17,968 | $68k | $453k | 100% |
| 07090 | Westfield | 31,111 | 4,617 | $233k | $953k | 100% |
| 07065 | Rahway | 30,109 | 7,728 | $92k | $386k | 100% |
| 07201 | Elizabeth | 28,467 | 4,422 | $60k | $468k | 100% |
| 07076 | Scotch Plains | 24,843 | 2,762 | $184k | $718k | 100% |
| 07901 | Summit | 24,314 | 3,839 | $180k | $988k | 100% |
| 07016 | Cranford | 24,074 | 5,074 | $156k | $660k | 100% |
| 07203 | Roselle | 22,646 | 8,594 | $93k | $380k | 100% |
| 07205 | Hillside | 22,349 | 8,080 | $100k | $397k | 100% |
| 07081 | Springfield | 17,171 | 3,317 | $156k | $637k | 100% |
| 07066 | Clark | 15,622 | 3,569 | $134k | $610k | 100% |
| 07062 | Plainfield | 15,399 | 8,008 | $98k | $396k | 88% |
| 07063 | Plainfield | 14,235 | 7,975 | $93k | $393k | 61% |
| 07204 | Roselle Park | 14,093 | 11,504 | $110k | $443k | 100% |
| 07974 | New Providence | 13,349 | 3,363 | $173k | $758k | 100% |
| 07922 | Berkeley Heights | 12,195 | 2,185 | $203k | $785k | 100% |
| 07033 | Kenilworth | 8,401 | 3,913 | $119k | $522k | 100% |
| 07023 | Fanwood | 7,799 | 5,820 | $196k | $635k | 100% |
| 07092 | Mountainside | 7,049 | 1,765 | $212k | $810k | 100% |
| 07027 | Garwood | 4,885 | 7,515 | $111k | $533k | 100% |
| 07088 | Vauxhall | 2,901 | 8,954 | $93k | $346k | 100% |
Partly in Union County
| In this county | ||||||
|---|---|---|---|---|---|---|
| 08812 | Dunellen | 14,224 | 2,801 | $118k | $443k | 1% |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).
Which ZIP codes cross the county line?
4 ZIP codes of Union County extend into another county. A ZIP code follows mail routes, not county borders.
| ZIP | In Union | Elsewhere |
|---|---|---|
| 07060 | 62% | Somerset County 38% |
| 07062 | 88% | Somerset County 12% |
| 07063 | 61% | Somerset County 39% |
| 08812 | 1% | Somerset County 78%; Middlesex County 21% |
Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).
PO Box and single-organization ZIP codes
Source: GeoNames postal codes (CC BY 4.0).
Which first three digits do Union County's ZIP codes use?
The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Union County's ZIP codes use 4 prefixes: 070, 072, 079 and 088.
| Prefix | Sectional center | Here | All codes |
|---|---|---|---|
| 070 | Dv Daniels, NJ (SCF 070) | 18 | 88 |
| 072 | Dv Daniels, NJ (SCF 070) | 8 | 8 |
| 079 | Dv Daniels, NJ (SCF 070) | 4 | 35 |
| 088 | Dv Daniels, NJ (SCF 070) | 1 | 67 |
Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.