Mercer County - Just the Facts
Geographic Size
Mercer County, Ohio has 462.4 square miles of land area and is the 36th largest county in Ohio by total area. Mercer County, Ohio is bordered by Darke, Shelby, Auglaize, Van Wert (Ohio) and Jay and Adams County in Indiana.
Population
Mercer County…………………………… 42,306 (2023)
City of Celina (county seat) ………………….10,847
Village of Coldwater ………………………………..4,588
Village of St. Henry …………………………………..2,622
Village of Fort Recovery …………………………. 1,451
Village of Rockford …………………………………….1,006
Village of Mendon ………………………………………. 598
Village of Chickasaw …………………………………..354
Village of Montezuma ……………………………….. 150
The 2010 population was 40,791 and has seen a growth of 3.71% since that time.
County Tax Rate
The sales tax rate for Mercer County is 7.25%.
Median Household Income
The average annual household income in Mercer County is $85,403, while the median household income sits at $71,250 per year. Residents aged 25 to 44 earn $81,830, while those between 45 and 64 years old have a median wage of $84,063. In contrast, people younger than 25 and those older than 65 earn less, at $69,509 and $46,274, respectively.
Cost of Living
The cost of living in Mercer County is 11% lower than the U.S. average.
Religion
A large number of churches are available in Mercer County. Many faiths are represented and all are welcome.
Unemployment
In November 2023, Mercer County ranked the lowest in the state for unemployment with an unemployment rate of only 1.9%.
Health
In 2023, Mercer County ranked 7th out of 88 in Ohio as being one of the healthiest counties, based upon lifestyle, general health and available health care services.
Safety
Please visit www.mercercountysheriffohio.gov for information regarding current crime rates and safety. Mercer County takes pride in its sheriff’s department, police departments and safety service providers.