What is the population of Union?

The population of Union, OH is 6,909.

Where is Union located?

Union, OH is located at latitude 39.8978300 and longitude -84.3063300. It is in United States.

What is the area of Union?

The area of Union, OH is 19.613766 km².

What is the elevation of Union?

Union, OH has an elevation of 281 meters (922 feet) above sea level.

What time zone is Union in?

Union, OH is in the America/New_York time zone.

What state is Union in?

Union is in the state of Ohio, United States.

What county is Union, OH in?

Union is in Montgomery County, Ohio.

How has the population of Union changed?

The population of Union, OH has increased from 6,419 (2010) to 6,909 (2020), a change of 7.6%.

Union, Ohio

Union: city in Montgomery and Miami Counties in the U.

About

Union is a city located in the county of Montgomery in the U.S. state of Ohio. Its population at the 2010 census was 6,419 and a population density of 327 people per km². After 10 years in 2020 city had an estimated population of 6,909 inhabitants.

The city was created 220 years ago in 1805.

Union locator map — Location of Union on Ohio map.

Quick Facts about Union

Population	6,909 (2020)
Country	United States of America
State	Ohio (United States)
County	Montgomery County
Different from	Union County
Postal code	45322
Area	19.61 km²
Latitude & Longitude	39.8978,-84.3063
Altitude	922 feet / 281 meters
Establishment	January 01, 1806 (220 years ago)
Time Zone	America/New_York
Local time	18:00:47 (22nd April 2026)
Density	352 Pop. per km² as of 2020
Population growth	7.09% (2010-2020)
Weather	75℉ Chance Showers And Thunderstorms 7-days weather

Montgomery County Ohio incorporated and unincorporated areas Union highlighted locator map image

Geography

Union is located at 39°53'52"N 84°18'23"W (39.8978300, -84.3063300).

Union map

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Weather

75°F

Chance Showers And Thunderstorms

10 mph W Wednesday

A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitati...

7-Day Forecast

Official website of Union

Official Website

Demographics

The population of Union increased by 7.09% in 10 years.

Year	Population	% Change	Method
2010	6,419	-	census
2011	6,432	0.2%	estimation process
2012	6,435	0.05%	estimation process
2013	6,437	0.03%	estimation process
2014	6,442	0.08%	estimation process
2015	6,526	1.29%	estimation process
2016	6,604	1.18%	estimation process
2017	6,639	0.53%	estimation process
2018	6,767	1.89%	estimation process
2019	6,890	1.79%	estimation process
2020	6,909	0.28%	estimation process

Services and Civic Places in Union

1Union City Hall

118 N Main St, Union, OH 45322 View details

Phone: +19378368624 | Website available

People born in Union (3)

People born in Union, including author Bernie Babcock, nurse Wilma Leona Jackson, American-football player Troy Mangen, .

More notable people

Nearby Schools and Colleges

Schools and campuses linked to Union, OH. Select a name to open its map and contact details.

Code	Name	City	ZIP
204158	Miami Valley Career Technology Center	Englewood (OH)	45315

Nearby Transit Stations (4)

Rail and bus stations connected to Union, OH. Select a station to open its map and address details.

Code	Name	Address	Type
COI	Connersville station	1012 Eastern Avenue	RAIL
CIG	Cincinnati, OH	1005 Gilbert Avenue	BUS
CIN	Cincinnati Museum Center at Union Terminal	1301 Western Ave.	RAIL
COL	Columbus, OH	111 East Town Street	BUS

Nearby Post Offices

Closest post offices linked to Union.

Post Office Name	City	ZIP
Englewood Post Office	Englewood (OH)	45322

Other places with the same name (21)

Union, New Jersey A city in Union County, New Jersey. with a population of 67,137 people.
Union, New York town in Broome County, New York, United States with a population of 52,262 people.
Union, Missouri city in and county seat of Franklin County, Missouri, United States with a population of 12,094 people.
Union, South Carolina township of Union County, New Jersey with a population of 8,045 people.
Union, South Carolina county seat of Union County, South Carolina with a population of 7,535 people.
Union, Kentucky township in Boone County, Iowa with a population of 6,116 people.
Union, Pennsylvania township in southeastern Union County, Pennsylvania with a population of 5,661 people.
Union, Maine town in Knox County, Maine, United States with a population of 2,275 people.
Union, Oregon township of Union County, New Jersey with a population of 2,207 people.
Union, Indiana city in Indiana, United States of America with a population of 2,160 people.
Union, Mississippi county in Mississippi, United States with a population of 1,876 people.
Union, Connecticut town in Tolland County, Connecticut, United States with a population of 844 people.
Union, Wisconsin town in Waupaca County, Wisconsin, United States with a population of 799 people.
Union, Illinois village in McHenry County, Illinois, United States with a population of 548 people.
Union, West Virginia town in Monroe County, West Virginia, United States with a population of 539 people.
Union, Michigan township in Cass County, Michigan with a population of 440 people.
Union, Iowa city in Hardin County, Iowa, United States with a population of 373 people.
Union, Minnesota township in Houston County, Minnesota with a population of 365 people.
Union, Nebraska village in Cass County, Nebraska, United States with a population of 242 people.
Union, Alabama town in Alabama, USA with a population of 207 people.
Union, North Dakota township in Grand Forks County, North Dakota, United States with a population of 182 people.

Other cities in Montgomery County

Cities, towns, neighborhoods & other populated places in Montgomery County , OH. (more)

City Name	Population	Title
Dayton	139,907	The ninth most populous city in Ohio.
Kettering	54,313	The most populous city in Montgomery County, Ohio.
Huber Heights	37,203	City in Montgomery, Miami and Greene counties in Ohio, United States
Trotwood	24,433	City in Montgomery County, Ohio, United States
Centerville	23,882	City in Iowa, United States
Miamisburg	20,117	City in Ohio, USA
Vandalia	14,987	City in Illinois
Englewood	13,502	City in Ohio, United States
West Carrollton City	13,297	Human settlement in Montgomery County, Ohio, United States of America
Shiloh	11,272	Biblical city
Northridge	8,487	Neighborhood of Los Angeles, California, United States
Sunbury	6,881	City in Delaware County, Ohio, United States of America
Moraine	6,507	City in Ohio, United States
Brookville	5,900	Borough of Pennsylvania
Germantown	5,567	City in Montgomery County, Ohio, United States
Fort McKinley	3,989	Unincorporated community in Montgomery County, Ohio

Distance to Other Cities

Union distances to largest Ohio cities