| Official Name: | Union, New Jersey |
| Settlement Type: | Census-designated place |
| Pushpin Map: | USA New Jersey Union County#USA New Jersey#USA |
| Pushpin Label: | Union CDP |
| Pushpin Map Caption: | Location in Union County##Location in New Jersey##Location in the United States |
| Pushpin Relief: | yes |
| Coordinates: | 40.6964°N -74.2697°W |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Type2: | County |
| Subdivision Name2: | Union |
| Subdivision Type3: | Township |
| Subdivision Name3: | Union |
| Area Footnotes: | [1] |
| Area Total Sq Mi: | 0.26 |
| Area Land Sq Mi: | 0.26 |
| Area Water Sq Mi: | 0.00 |
| Area Total Km2: | 0.66 |
| Area Land Km2: | 0.66 |
| Area Water Km2: | 0.00 |
| Population As Of: | 2020 |
| Population Density Km2: | 3374.40 |
| Timezone: | Eastern (EST) |
| Utc Offset: | −05:00 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −04:00 |
| Elevation Ft: | 123 |
| Postal Code Type: | ZIP Code |
| Postal Code: | 07083 |
| Area Code: | 908 |
| Blank Name: | FIPS code |
| Blank Info: | [2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 2390415 |
| Population Total: | 2229 |
| Unit Pref: | Imperial |
| Population Density Sq Mi: | 8741.18 |
Union is a census-designated place (CDP)[3] comprising the downtown area of Union Township, Union County, in the U.S. state of New Jersey. It was first listed as a CDP prior to the 2010 census. The area is also known as Union Center.[4]
The CDP is bordered by Caldwell Avenue and Falls Terrace to the northwest, by Vauxhall Avenue and Haines Avenue to the northeast, by Warren Avenue to the east, by the Garden State Parkway to the southeast, by Burke Parkway to the southwest, and by Bond Drie, Rosemont Avenue, Stuyvesant Avenue, and Elmwood Avenue to the south.[5] Connecticut Farms borders the neighborhood to the south.
New Jersey Route 82 (Morris Avenue) is the main street through Union, leading southeast 4miles to Elizabeth and northwest 2miles to Springfield.