In 2022, Mercer County, MO had a population of 3.52k people with a median age of 41.7 and a median household income of $55,592. Between 2021 and 2022 the population of Mercer County, MO declined from 3,561 to 3,517, a −1.24% decrease and its median household income grew from $52,105 to $55,592, a 6.69% increase.
The 5 largest ethnic groups in Mercer County, MO are White (Non-Hispanic) (92.9%), Two+ (Non-Hispanic) (2.39%), White (Hispanic) (1.54%), Asian (Non-Hispanic) (0.881%), and Other (Hispanic) (0.654%).
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.
98.2% of the residents in Mercer County, MO are U.S. citizens.
In 2022, the median property value in Mercer County, MO was $104,800, and the homeownership rate was 79.3%.
Most people in Mercer County, MO drove alone to work, and the average commute time was 23.4 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.