Map of Union city, Ohio

Union is a city in Montgomery and Miami Counties in the U.S. state of Ohio. The population was 6,859 at the time of the 2020 census. It is part of the Dayton Metropolitan Statistical Area.

Union city overview:
Name:	Union city
LSAD Code:	25
LSAD Description:	city (suffix)
State:	Ohio
County:	Miami County, Montgomery County
Founded:	1806
Incorporated:	1982 (as city)
Elevation:	922 ft (281 m)
Total Area:	8.38 sq mi (21.69 km²)
Land Area:	8.30 sq mi (21.50 km²)
Water Area:	0.08 sq mi (0.20 km²)
Total Population:	6,859
Population Density:	826.39/sq mi (319.06/km²)
ZIP code:	45322 and 45377
Area code:	937, 326
FIPS code:	3978470
GNISfeature ID:	1049256
Website:	http://www.unionoh.org/

Online Interactive Map

Click on to view map in "full screen" mode.

Union online map. Source: Basemap layers from Google Map, Open Street Map (OSM), Arcgisonline, Wmflabs. Boundary Data from Database of Global Administrative Areas.

Union location map. Where is Union city?

Union location on the U.S. Map. Where is Union city. — Union location on the U.S. Map.

Union location on the Ohio map. Where is Union city. — Location of Union in Ohio.

Union Road Map

Union city Satellite Map

Geography

The coordinates for The City of Union are 39°54′1″N 84°18′49″W / 39.90028°N 84.31361°W / 39.90028; -84.31361 (39.900154, -84.313494).

According to the United States Census Bureau, the city has a total area of 8.602 square miles (22.28 km), of which 8.522 square miles (22.07 km) is land and 0.08 square miles (0.21 km) is water. The Stillwater River runs on its east side.

Ironically, Union lies west of West Union, Ohio, the county seat of Adams County approximately 60 miles east of Cincinnati. Union and West Union are not adjacent to each other, actually being approximately 120 miles from each other.

Transportation

One major state highway, State Route 48, runs through Union. In Union, State Route 48 is known as Main Street. Union is 4 miles north of Interstate 70.