Capitolimpact: Profile for Union County
- Information on the political infrastructure of the county.
- http://www.capitolimpact.com/gw/cntydetail.asp?state=oh&stfips=39&stname=Ohio&fips=39159

Union County Connections
- Includes county profile and services, educational and government websites, parks and recreation, health facilities, and places to visit.
- http://www.oplin.org/controller.php?l=category&Id=63-16-193

Union County Chamber of Commerce
- Information on chamber events, community services, county statistics, and government offices.
- http://www.unioncounty.org/

Union County Extension Office
- Branch office of Ohio State University, it combines the needs of local citizens and communities, with new research and technical information.
- http://union.osu.edu/

Union County, Ohio - U.S. Census Bureau
- Provides population, demographic, and housing information.
- http://quickfacts.census.gov/qfd/states/39/39159.html

Union County Health Department
- Mission is to promote the wellness of all Union County residents and protect their health and safety by providing high quality public health services.
- http://www.uchd.net/

County Map
- Map of Union County.
- http://www.dot.state.oh.us/map1/ohiomap/images/county/union.gif

Union County, Ohio
- Official site provides information about the government, public safety, zoning, building and services in the county.
- http://www.co.union.oh.us/

The Political Graveyard: Union County, Ohio
- Site contains information on the political history of Union County, cemeteries and memorial sites in the county.
- http://politicalgraveyard.com/geo/OH/UN.html