What is the population of Union?

The population of Union, IA is 373.

Where is Union located?

Union, IA is located at latitude 42.2455400 and longitude -93.0646500. It is in United States.

What is the area of Union?

The area of Union, IA is 1.423361 km².

What is the elevation of Union?

Union, IA has an elevation of 287 meters (942 feet) above sea level.

What time zone is Union in?

Union, IA is in the America/Chicago time zone.

What state is Union in?

Union is in the state of Iowa, United States.

What county is Union, IA in?

Union is in Hardin County, Iowa.

How has the population of Union changed?

The population of Union, IA has decreased from 397 (2010) to 373 (2020), a change of -6%.

Union, Iowa

Union: city in Hardin County, Iowa, United States

About

Union is a city located in the county of Hardin in the U.S. state of Iowa. Its population at the 2010 census was 397 and a population density of 279 people per km². After 10 years in 2020 city had an estimated population of 373 inhabitants.

Quick Facts about Union

Population	373 (2020)
Country	United States of America
State	Iowa (United States)
County	Hardin County
Different from	Union County
Area	1.42 km²
Latitude & Longitude	42.2455,-93.0647
Altitude	942 feet / 287 meters
Time Zone	America/Chicago
Local time	18:21:22 (22nd April 2026)
Postal code	50258
Density	262 Pop. per km² as of 2020
Population growth	-6.43% (2010-2020)
Weather	80℉ Sunny 7-days weather

Geography

Union is located at 42°14'44"N 93°3'53"W (42.2455400, -93.0646500).

Union map

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Weather

80°F

Sunny

5 to 15 mph SSE Wednesday

Sunny, with a high near 80. South southeast wind 5 to 15 mph, with gusts as high as 21 mph.

7-Day Forecast

Official website of Union

Official Website

Demographics

According to census records, the population of Union decreased by 6.43% in 10 years.

Year	Population	% Change	Method
2010	397	-	census
2011	395	-0.51%	estimation process
2012	394	-0.25%	estimation process
2013	395	0.25%	estimation process
2014	391	-1.02%	estimation process
2015	392	0.26%	estimation process
2016	390	-0.51%	estimation process
2017	387	-0.78%	estimation process
2018	383	-1.04%	estimation process
2019	381	-0.52%	estimation process
2020	373	-2.14%	estimation process

Union zip code is 50258. County name: Hardin, County fips: 19083

Nearby Schools and Colleges

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

Code	Name	City	ZIP
153171	Iowa School of Beauty-Marshalltown	Marshalltown (IA)	50158

Nearby Post Offices

Closest post offices linked to Union.

Post Office Name	City	ZIP
Union Post Office	Union (IA)	50258

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, Ohio city in Montgomery and Miami Counties in the U. with a population of 6,909 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, 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 Hardin County

Cities, towns, neighborhoods & other populated places in Hardin County , IA.

City Name	Population	Title
Iowa Falls	4,940	City in Iowa, United States
Eldora	2,571	City in Hardin County, Iowa, United States
Ackley	1,485	City in Iowa, America
Hubbard	793	City in Iowa, USA
Alden	726	City in Iowa, the United States of America
Radcliffe	517	City in Iowa, USA
Steamboat Rock	298	Human settlement in Hardin County, Iowa, United States of America
New Providence	220	City in Hardin County, Iowa, United States
Whitten	140	City in Iowa, United States
Buckeye	107	Township in Hardin County, Iowa
Owasa	41	Human settlement in Hardin County, Iowa, United States of America