| Official Name: | New Union, Tennessee |
| Settlement Type: | Census-designated place |
| Pushpin Map: | Tennessee |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Tennessee |
| Subdivision Type2: | County |
| Subdivision Name2: | Coffee |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 9.95 |
| Area Land Km2: | 9.95 |
| Area Water Km2: | 0.00 |
| Area Total Sq Mi: | 3.84 |
| Area Land Sq Mi: | 3.84 |
| Area Water Sq Mi: | 0.00 |
| Population As Of: | 2020 |
| Population Footnotes: | [2] |
| Population Total: | 1646 |
| Population Density Km2: | 165.49 |
| Population Density Sq Mi: | 428.65 |
| Timezone: | Central (CST) |
| Utc Offset: | -6 |
| Timezone Dst: | CDT |
| Utc Offset Dst: | -5 |
| Elevation Ft: | 1096 |
| Coordinates: | 35.5325°N -86.0808°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 37355[3] |
| Area Code: | 931 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 1295658 |
New Union is an unincorporated community and Census-designated place in Coffee County, Tennessee. The population was 1,646 at the 2020 census,[4] up from 1,431 at the 2010 census.[5]