In 2018, Mercer County, OH had a population of 40.8k people with a median age of 39.9 and a median household income of $59,417. Between 2017 and 2018 the population of Mercer County, OH grew from 40,723 to 40,806, a 0.204% increase and its median household income grew from $57,052 to $59,417, a 4.15% increase.
The 5 largest ethnic groups in Mercer County, OH are White (Non-Hispanic) (95.5%), White (Hispanic) (1.61%), Two+ (Non-Hispanic) (0.963%), Black or African American (Non-Hispanic) (0.618%), and Asian (Non-Hispanic) (0.439%). 0% of the households in Mercer County, OH speak a non-English language at home as their primary language, and 99% of the residents in Mercer County, OH are U.S. citizens.
The largest universities in Mercer County, OH are Wright State University-Lake Campus (173 degrees awarded in 2019).
In 2018, the median property value in Mercer County, OH was $144,100, and the homeownership rate was 76.6%. Most people in Mercer County, OH drove alone to work, and the average commute time was 17.6 minutes. The average car ownership in Mercer County, OH was 2 cars per household.