Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/NJ/COUNTY/UNION

Union County, NJ ZIP codes

There are 30 ZIP codes in Union County, NJ, in 22 towns, from 07016 to 07974. The largest are 07083 (Union), 07036 (Linden) and 07060 (Plainfield).

The county seat is Elizabeth.

ZIP codes
30
Towns
22
County seat
Elizabeth
County FIPS
34039
Population
579,290
Median household income
$103,202
Land area
103 sq mi
Area codes
732, 848, 908

Union County ZIP codes by town

Elizabeth (county seat)
07201, 07202, 07207, 07208

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Union County ZIP codes

070160702307027070330703607060070610706207063070650706607076070810708307088070900709107092072010720207203072040720507206072070720807901079020792207974

The ZIP codes of Union County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Union County in numbers

About 579,290 people live in Union County, in 203,277 households, the 7th most populous of New Jersey's 21 counties. The median household income is $103,202 a year, about the same as the New Jersey median of $103,556 (US: $80,734). The median owner-occupied home is valued at $529,200 (16% above the New Jersey median), and median gross rent is $1,730 a month. The median age is 39.1; 38.9% of adults 25 and over hold a bachelor's degree or higher (43.6% across New Jersey); the average commute takes 30 minutes.

Population579,290Union579,290
Households203,277Union203,277
Median age39.1Union39.1New Jersey40.1US 38.9
Median household income$103,202Union$103,202New Jersey$103,556US $80,734
Median home value$529,200Union$529,200New Jersey$454,400US $332,700
Median gross rent$1,730Union$1,730New Jersey$1,720US $1,413
Bachelor's degree or higher38.9%Union38.9%New Jersey43.6%US 35.7%
Mean commute30.2 minUnion30.2 minNew Jersey30.5 minUS 26.4 min
Population density5,637 / sq miUnion5,637 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Union County

Largest towns in Union County
TownZIP codesPopulation
Elizabeth 4 137,302
Plainfield 4 55,236
Linden 1 44,192
Elizabethport 1 31,930
Westfield 2 31,111
Rahway 1 30,109
Scotch Plains 1 24,843
Summit 2 22,705
Roselle 1 22,646
Hillside 1 22,349
Clark 1 15,622
Roselle Park 1 14,093
New Providence 1 13,727
Berkeley Heights 1 12,195
Kenilworth 1 8,401

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Union County.

Not sure you are in Union County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Union County, with figures

ZIP codes in Union County
ZIP City Type Population Median income Median home
07016 Cranford , NJ Standard 24,074 $155,972 $660,100
07023 Fanwood , NJ Standard 7,799 $195,529 $635,200
07027 Garwood , NJ Standard 4,885 $110,670 $533,300
07033 Kenilworth , NJ Standard 8,401 $118,611 $522,200
07036 Linden , NJ Standard 45,671 $91,882 $417,900
07060 Plainfield , NJ Standard 48,363 $78,602 $393,800
07061 Plainfield , NJ No street area — — —
07062 Plainfield , NJ Standard 15,399 $98,344 $396,100
07063 Plainfield , NJ Standard 14,235 $93,304 $392,500
07065 Rahway , NJ Standard 30,109 $91,461 $386,400
07066 Clark , NJ Standard 15,622 $133,504 $609,600
07076 Scotch Plains , NJ Standard 24,843 $183,655 $718,200
07081 Springfield , NJ Standard 17,171 $155,906 $636,600
07083 Union , NJ Standard 58,170 $121,887 $455,300
07088 Vauxhall , NJ Standard 2,901 $93,240 $346,000
07090 Westfield , NJ Standard 31,111 $232,629 $953,400
07091 Westfield , NJ No street area — — —
07092 Mountainside , NJ Standard 7,049 $211,538 $810,300
07201 Elizabeth , NJ Standard 28,467 $60,080 $467,500
07202 Elizabeth , NJ Standard 44,968 $71,250 $432,100
07203 Roselle , NJ Standard 22,646 $92,762 $379,900
07204 Roselle Park , NJ Standard 14,093 $109,679 $443,200
07205 Hillside , NJ Standard 22,349 $99,528 $397,400
07206 Elizabethport , NJ Standard 31,930 $68,420 $452,600
07207 Elizabeth , NJ No street area — — —
07208 Elizabeth , NJ Standard 31,937 $65,511 $459,200
07901 Summit , NJ Standard 24,314 $179,701 $987,900
07902 Summit , NJ No street area — — —
07922 Berkeley Heights , NJ Standard 12,195 $202,944 $785,300
07974 New Providence , NJ Standard 13,349 $172,894 $758,400

Cite this page

zipcodes.pro. “Union County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/nj/county/union

Underlying data is public domain or openly licensed — sources, vintages and licences.