Union, Missouri
Union is a city in Franklin County, Missouri, with an estimated population of 13,000 in 2023. It sits at 38.4379, -90.9958 in the America/Chicago time zone.
| Field | Value |
|---|---|
| Place name | Union |
| Type | city |
| State | Missouri (MO) |
| County | Franklin County |
| Population (2023 est.) | 13,000 |
| Land area | 9.09 sq mi (23.55 km²) |
| Coordinates | 38.4379, -90.9958 |
| Time zone | America/Chicago |
| ZIP codes | 63084 |
ZIP codes and area codes for Union
Union covers 1 ZIP code: 63084. Browse all ZIP codes in Missouri for the full list.
Where is Union?
Union is located in Missouri, in Franklin County. The coordinates above can be pasted directly into any map service. The nearest indexed places are listed below, which is a useful check when two states share a place name.
Nearby places
St. Clair 10 km · MOParkway 12 km · MOWashington 13 km · MOAugusta 18 km · MOPacific 22 km · MOMarthasville 22 km · MOLake Tekakwitha 24 km · MONew Haven 27 km · MO
Other places in Franklin County
Washington 15,450Pacific 7,554Sullivan 6,829St. Clair 4,716New Haven 2,389Gerald 1,342Parkway 650Oak Grove Village 400Berger 259
Frequently asked questions
What county is Union, MO in?
Union is in Franklin County, Missouri.
What is the population of Union, MO?
The 2023 Census Bureau estimate is 13,000.
What time zone is Union in?
Union is in the America/Chicago time zone.