Union County, New Jersey
Union County profile, demographic data, and geographic information.
Local Government & Public Administration
Authoritative general-purpose local government units serving this area
U.S. Census Bureau GUS (2026) / GMAF
| Government Unit | Unit Type | Jurisdiction Role | Contact / Address |
|---|---|---|---|
|
GUS Population: 594,160 (2024)
ID: 194928
|
County | Official County Government |
Contact: CLERK OF THE BOARD
10 ELIZABETHTOWN PLZ, ELIZABETH NJ 07207-3451
|
|
GUS Population: 140,413 (2024)
ID: 204933
|
Municipal | Municipal Government Within County |
Contact: CLERK
50 WINFIELD SCOTT PLZ, ELIZABETH NJ 07201-2408
|
|
GUS Population: 63,171 (2024)
ID: 212655
|
Township | Municipal Government Within County |
Contact: ACTING ADMINISTRATOR
1976 MORRIS AVE, UNION NJ 07083-3597
|
|
GUS Population: 56,507 (2024)
ID: 130872
|
Municipal | Municipal Government Within County |
Contact: MAYOR
515 WATCHUNG AVE, PLAINFIELD NJ 07060-1798
|
|
CITY OF LINDEN
GUS Population: 45,393 (2024)
ID: 190901
|
Municipal | Municipal Government Within County |
Contact: MAYOR
301 N WOOD AVE, STE 1, LINDEN NJ 07036-4297
|
|
GUS Population: 32,050 (2024)
ID: 170248
|
Municipal | Municipal Government Within County |
Contact: ADMINISTRATOR
425 E BROAD ST, WESTFIELD NJ 07090-2123
|
|
GUS Population: 30,763 (2024)
ID: 109127
|
Municipal | Municipal Government Within County |
Contact: DEPUTY CITY CLERK
1 CITY HALL PLAZA, RAHWAY NJ 07065-5022
|
|
GUS Population: 25,223 (2024)
ID: 194423
|
Township | Municipal Government Within County |
Contact: MUNICIPAL CLERK
430 PARK AVE, SCOTCH PLAINS NJ 07076-1798
|
|
GUS Population: 24,513 (2024)
ID: 170354
|
Township | Municipal Government Within County |
Contact: CHIEF FINANCIAL OFFICER
8 SPRINGFIELD AVE, 1, CRANFORD NJ 07016-2199
|
|
GUS Population: 23,102 (2024)
ID: 130873
|
Municipal | Municipal Government Within County |
Contact: ADMINISTRATIVE ASSISTANT
512 SPRINGFIELD AVENUE, SUMMIT NJ 07901-2607
|
|
GUS Population: 23,064 (2024)
ID: 170246
|
Municipal | Municipal Government Within County |
BOROUGH OF ROSELLE, 210 CHESTNUT ST, ROSELLE NJ 07203
|
|
GUS Population: 22,690 (2024)
ID: 186571
|
Township | Municipal Government Within County |
Contact: MAYOR
1409 LIBERTY AVE, 1, HILLSIDE NJ 07205-1347
|
|
GUS Population: 17,630 (2024)
ID: 170355
|
Township | Municipal Government Within County |
Contact: TOWNSHIP ADMINISTRATOR
100 MOUNTAIN AVE, SPRINGFIELD NJ 07081-1785
|
|
GUS Population: 16,277 (2024)
ID: 170353
|
Township | Municipal Government Within County |
Contact: BUSINESS ADMINISTRATOR
430 WESTFIELD AVE, CLARK NJ 07066-1759
|
|
GUS Population: 14,510 (2024)
ID: 170352
|
Township | Municipal Government Within County |
Contact: DEPUTY CLERK
29 PARK AVE, BERKELEY HEIGHTS NJ 07922-1421
|
|
GUS Population: 14,390 (2024)
ID: 170247
|
Municipal | Municipal Government Within County |
Contact: BOROUGH CLERK
110 E WESTFIELD AVE, ROSELLE PARK NJ 07204-2083
|
|
GUS Population: 13,957 (2024)
ID: 170245
|
Municipal | Municipal Government Within County |
Contact: ADMINISTRATOR
360 ELKWOOD AVE, NEW PROVIDENCE NJ 07974-1838
|
|
GUS Population: 8,527 (2024)
ID: 109125
|
Municipal | Municipal Government Within County |
Contact: BOROUGH CLERK
567 BOULEVARD, KENILWORTH NJ 07033-1696
|
|
GUS Population: 7,968 (2024)
ID: 170242
|
Municipal | Municipal Government Within County |
Contact: BOROUGH ADMINISTRATOR/CLERK
75 N MARTINE AVE, FANWOOD NJ 07023-1341
|
|
GUS Population: 7,228 (2024)
ID: 170244
|
Municipal | Municipal Government Within County |
Contact: MUNICIPAL CLERK
1385 US HIGHWAY 22, 1, MOUNTAINSIDE NJ 07092-2697
|
|
GUS Population: 5,346 (2024)
ID: 170243
|
Municipal | Municipal Government Within County |
Contact: BORO ADM
403 SOUTH AVE, GARWOOD NJ 07027-1296
|
|
GUS Population: 1,438 (2024)
ID: 170356
|
Township | Municipal Government Within County |
Contact: MAYOR
12 GULFSTREAM AVE, WINFIELD PARK NJ 07036-6608
|