Union County is a district of New Jersey.
Boundaries: United States Census Bureau, MAF/TIGER Database (https://www.census.gov/geographies/mapping-files/time-series/geo/carto-boundary-file.html) via geoBoundaries, public domain
| Borough of Fanwood | no seat recorded | 7 k |
| Borough of Garwood | no seat recorded | 4 k |
| Borough of Kenilworth | no seat recorded | 8 k |
| Borough of Mountainside | no seat recorded | 7 k |
| Borough of New Providence | no seat recorded | 12 k |
| Borough of Roselle | no seat recorded | 21 k |
| Borough of Roselle Park | no seat recorded | 13 k |
| City of Elizabeth | Elizabeth | 125 k |
| City of Linden | no seat recorded | 40 k |
| City of Plainfield | no seat recorded | 50 k |
| City of Rahway | no seat recorded | 27 k |
| City of Summit | no seat recorded | 21 k |
| Town of Westfield | no seat recorded | 30 k |
| Township of Berkeley Heights | no seat recorded | |
| Township of Clark | no seat recorded | |
| Township of Cranford | no seat recorded | |
| Township of Hillside | no seat recorded | |
| Township of Scotch Plains | no seat recorded | |
| Township of Springfield | no seat recorded | |
| Township of Union | no seat recorded | |
| Township of Winfield | no seat recorded |
Nothing has been written about Union County here, and neither Wikipedia nor Wikivoyage has an article we could draw one from. If you know the place, that makes you a better source than anything we have. Tell us what is worth knowing and where you got it.
We show Elizabeth as the capital of Union County. If that is wrong, tell us what it should be and where you read it.
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