Union County, Ohio

Union County: County in Ohio, United States

About

Union County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 52,300 and a population density of 46 people per km². After 10 years in 2020 county had an estimated population of 60,021 inhabitants. Its county seat is Marysville. The county was created 204 years ago in 1820.

Union County locator map
Location of Union County on Ohio map.

Quick Facts about Union County

Population : 60,021 (2020)
Country : United States of America
State : Ohio (United States)
Different from : Union County, Union County, Union County, Union County, Union County, Union County, Union County, Union County, Union County, Union Parish, Union County, Union County, Union County, Union County, Union County, Union County, Union County
Plate code : 80
Area : 1132 km2
Water as percent of area : 1.2%
Land as percent of area : 98.8%
Capital : Marysville
Establishment : January 01, 1820
Time Zone : America/New_York
Local time : 12:34:46 (3rd December 2024)
Density : 53 Pop. per km² as of 2020
Population growth : 12.86% (2010-2020)
Seal of Union County Ohio seal image
Seal of Union County Ohio
Seal of Union County Ohio seal image

Geography

Union County is located at 40°17'58"N 83°22'18"W (40.2994000, -83.3715800). It has 6 neighbors: Madison County, Champaign County, Delaware County, Hardin County, Logan County and Marion County.

Union County map

The largest city of Union County is Milford Center with a population of 927. Other cities include, Magnetic Springs population 304 and Unionville Center population 229. See all Union County cities & populated places.

Union County Populated Places

Cities, towns, neighborhoods & other populated places in Union County.

City Name Population Title
Jerome 6,006 Township in Union County, Ohio
Richwood 2,554 Village in Ohio, United States
Milford Center 927 Human settlement in Union County, Ohio, United States of America
Magnetic Springs 304 Human settlement in Union County, Ohio, United States of America
Unionville Center 229 Human settlement in Union County, Ohio, United States of America

Union County has 6 neighbours.

  • Marysville

Demographics

The population of Union County increased by 12.86% in 10 years.

Year Population % Change Method
2010 52,300 - census
2011 53,095 1.5% estimation process
2012 52,796 -0.57% estimation process
2013 53,436 1.2% estimation process
2014 53,773 0.63% estimation process
2015 54,388 1.13% estimation process
2016 55,581 2.15% estimation process
2017 56,798 2.14% estimation process
2018 57,782 1.7% estimation process
2019 58,988 2.04% estimation process
2020 60,021 1.72% estimation process

Comitatul Union, Comte d'Union, Comte dUnion, Comté d'Union, Comté dUnion, Condado de Union, Condado han Union, Contea di Union, Hrabstwo Union, Junion, Juniun, Okrug Junion, Quan Union, Quận Union, Union, Union Comitatus, Union Kun, Union Kūn, Union konderria, Union megye, Unionin piirikunta, i'uniyana ka'unti, mqatʿt ywnywn, shhrstan ywnywn awhayw, you ni ang xian, yunion jun, Округ Јунион, Юнион, Юниън, Юніон, شهرستان یونیون، اوهایو, مقاطعة يونيون, یونین کاؤنٹی، اوہائیو, ইউনিয়ন কাউন্টি, ユニオン郡, 猶尼昂縣

People born in Union County (6)

People born in Union County, including politician John Marshall Hamilton, politician Beriah Wilkins, Ohio State Auditor Edward M. Fullington, .

List

Other places with the same name (17)

Ohio Other Counties (more counties)

County Name Population Title
Franklin County 1,324,624 County in Massachusetts, United States
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Hamilton County 817,985 County in New York, United States
Summit County 538,866 County in northern Utah, United States
Montgomery County 531,610 County in Ohio, United States
Lucas County 428,294 County in Ohio, United States
Butler County 385,648 County in Ohio, United States of America
Cleveland 378,589 The second most populous city in Ohio and the center of the Cleveland metropolitan area.
Stark County 369,772 County in Ohio, United States
Lorain County 312,172 County in Ohio, United States
Cincinnati 304,548 The third most populous city in Ohio and the center of the Cincinnati metropolitan area.
Toledo 271,455 The fourth most populous city in Ohio and the center of the Toledo metropolitan area.
Warren County 238,412 County in New York, United States
Lake County 229,569 County in Ohio, United States
Mahoning County 226,075 County in Ohio, United States