Union township, Ohio

Union township is a geographic entity located in Mercer County, Ohio. As of official census estimates, it has a reported population of 1,340. The land area covers 36.38 sq mi. ^[1]

Demographics & Population

Demographic Metric	Estimate / Count	Margin of Error	Survey Period / Source
Total Population (2025 PEP Estimate)	1,340	—	2025 / Census
Median Age	45.4 yrs	±11.9	2020-2024 / Census ACS 5-Year 2024
Total Households	616	±140	2020-2024 / Census ACS 5-Year 2024

Source: U.S. Census Bureau (PEP, ACS 5-Year).

Housing & Real Estate Profile

Housing Metric	Estimate / Value	Margin of Error
Total Housing Units	638	±138
Occupied Housing Units	616	±140
Vacant Housing Units	22	±19
Median Home Value	$110,500	±$12,125
Median Gross Rent	$694	±$77

Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Economy & Workforce

Economic Metric	Estimate / Value	Margin of Error
Median Household Income	$45,556	±$14,307
Per Capita Income	$26,463	±$4,440
Poverty Rate	15.2%	±6.1%
Population Below Poverty Level	199	±91
Unemployment Rate	9.1%	±8.9%
Civilian Labor Force, Employed	597	±128
Broadband Internet Rate	79.9%	±25%

Source: U.S. Census Bureau ACS 5-Year (2020-2024).

Local Government & Public Administration

Authoritative general-purpose local government units serving this area U.S. Census Bureau GUS (2026) / GMAF

Government Unit	Unit Type	Jurisdiction Role	Contact / Address
TOWNSHIP OF UNION GUS Population: 1,343 (2024) ID: 132697	Township	Official Local Government	Contact: FISCAL OFFICER PO BOX 37, MENDON OH 45862-0037
COUNTY OF MERCER GUS Population: 42,648 (2024) ID: 132376	County	Official County Government	101 N MAIN ST, ROOM 209, CELINA OH 45822

Education

Listing 10 local institutions (NCES 2024-2025) External reference via K12Guides

Institution	Type	Grades	Location
Union Elementary School	Regular School Union	02-06	Union, OH
Celina Elementary School	Regular School Nearby	KG-06	Celina, OH
Celina High School	Regular School Nearby	08-12	Celina, OH
Celina Middle School	Regular School Nearby	07-08	Celina, OH
Coldwater Elementary School	Regular School Nearby	KG-04	Coldwater, OH
Coldwater High School	Regular School Nearby	09-12	Coldwater, OH
Coldwater Middle School	Regular School Nearby	05-08	Coldwater, OH
Delphos City Schools (Preschool)	Regular School Nearby	PK	Delphos, OH
Franklin Elementary School	Regular School Nearby	KG-05	Delphos, OH
Head Start	Regular School Nearby	PK	Celina, OH

Source: k12guides.com.

Community Facilities & Infrastructure

Displaying 10 civic institutions across 2 datasets queried CMS • IPEDS • IMLS

Facility Name	Category	Relationship	Address / Location	Contact
Wright State University-Lake Campus	College	9.7 mi away	7600 Lake Campus Drive, Celina, OH, 45822	4195860300 Website →
MENDON BRANCH LIBRARY	Library	1.0 mi away	105 W MARKET ST, MENDON, OH, 45862	(419) 795-6472
Vantage Career Center	College Vocational	13.8 mi away	818 North Franklin Street, Van Wert, OH, 45891	41923854112110 Website →
ROCKFORD CARNEGIE LIBRARY	Library	7.0 mi away	162 S. MAIN ST., ROCKFORD, OH, 45882	(419) 363-2630
Ohio State Beauty Academy	College	19.0 mi away	1760 N. Eastown Rd., Lima, OH, 45807	4192297896 Website →
OHIO CITY BRANCH	Library	7.9 mi away	101 W. CARMEAN STREET, OHIO CITY, OH, 45874	(419) 965-2918
Apollo Career Center	College Vocational	19.1 mi away	3325 Shawnee Rd, Lima, OH, 45806-1497	4199983000 Website →
SPENCERVILLE BRANCH LIBRARY	Library	9.1 mi away	2489 WISHER DR, SPENCERVILLE, OH, 45887	(419) 647-4307
University of Northwestern Ohio	College	19.4 mi away	1441 N Cable Rd, Lima, OH, 45805	4192273141 Website →
MERCER COUNTY DISTRICT PUBLIC LIBRARY	Library	9.8 mi away	303 N. MAIN ST., CELINA, OH, 45822	(419) 586-4442

Distances calculated from authoritative source coordinates. Source: CMS, IMLS, NCES IPEDS.

Climate & Weather Observations

NOAA Monthly Climate Normals

Observation Station: Climate data reflects NOAA 1991–2020 standard normals recorded at CELINA 3 NE, OH US, located 8.2 miles from Union township. Local microclimates, topography, and elevation may cause municipal conditions to differ.

Month	High (°F)	Low (°F)	Mean (°F)	Precip (in)	Snow (in)
January	33.7°	18.7°	26.2°	2.76"	10.8"
February	37.9°	21.5°	29.7°	2.32"	7.1"
March	48.8°	29.7°	39.3°	2.87"	4.1"
April	62.7°	39.7°	51.2°	3.86"	0.5"
May	73.1°	51.1°	62.1°	4.05"	0.0"
June	81.0°	60.1°	70.5°	4.38"	0.0"
July	83.7°	63.0°	73.4°	4.58"	0.0"
August	82.2°	60.9°	71.5°	3.56"	0.0"
September	77.3°	54.2°	65.7°	2.75"	0.0"
October	64.7°	43.7°	54.2°	2.86"	0.1"
November	50.1°	33.1°	41.6°	3.15"	1.3"
December	38.3°	24.3°	31.3°	2.62"	4.9"

Source: NOAA U.S. Climate Normals (1991–2020).

Local Weather Forecast

Weather forecast data is currently unavailable in the local cache.

Nearby Cities & Communities

Listing adjacent communities by spatial proximity (miles) Proximity discovery

Community Name	Classification	Distance	Population
Mendon village	Village	1.0 mi	—
Elgin village	Village	4.3 mi	—
Rockford village	Village	7.1 mi	—
Venedocia village	Village	7.4 mi	—
Ohio City village	Village	7.9 mi	—
Spencerville village	Village	8.5 mi	—

Sources & Data Provenance

1. Geographic Classification & Identifiers: U.S. Census Bureau Gazetteer (2026) and TIGER/Line Shapefiles. GEOID: 3910778442. • Official Source Dataset →
2. Socioeconomic & Housing Metrics: U.S. Census Bureau American Community Survey (ACS) 5-year estimates and Population Estimates Program (PEP). Margin of Error (MOE) intervals are reported where published; suppressed values are never estimated or replaced with false zeros.
3. Civic Directory Datasets: Centers for Medicare & Medicaid Services (CMS Hospital Directory), National Center for Education Statistics (NCES IPEDS Postsecondary Directory), and Institute of Museum and Library Services (IMLS Public Libraries Survey). Airport landing facilities are provided by airport-data.com.
4. Weather & Climate Observations: National Oceanic and Atmospheric Administration (NOAA) U.S. Climate Normals 1991–2020 and National Weather Service (NWS) point forecasts.

Read complete data sources, methodology, and licensing documentation →