In 2021, Mercer County, MO had a population of 3.56k people with a median age of 41.2 and a median household income of $52,105. Between 2020 and 2021 the population of Mercer County, MO declined from 3,623 to 3,561, a −1.71% decrease and its median household income grew from $50,030 to $52,105, a 4.15% increase.
The 5 largest ethnic groups in Mercer County, MO are White (Non-Hispanic) (94%), White (Hispanic) (1.57%), Two+ (Non-Hispanic) (1.54%), Other (Hispanic) (0.702%), and Asian (Non-Hispanic) (0.674%).
None of the households in Mercer County, MO reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
98.3% of the residents in Mercer County, MO are U.S. citizens.
In 2021, the median property value in Mercer County, MO was $82,700, and the homeownership rate was 80.8%.
Most people in Mercer County, MO drove alone to work, and the average commute time was 24.4 minutes. The average car ownership in Mercer County, MO was 3 cars per household.
Mercer County, MO borders Decatur County, IA, Wayne County, IA, Grundy County, MO, Harrison County, MO, Putnam County, MO, and Sullivan County, MO.