In 2023, Mercer, WI had a population of 539 people with a median age of 54.4 and a median household income of $51,528. Between 2022 and 2023 the population of Mercer, WI grew from 533 to 539, a 1.13% increase and its median household income declined from $59,545 to $51,528, a −13.5% decrease.
The 5 largest ethnic groups in Mercer, WI are White (Non-Hispanic) (96.8%), American Indian & Alaska Native (Non-Hispanic) (1.67%), White (Hispanic) (1.48%), Black or African American (Non-Hispanic) (0%), and Asian (Non-Hispanic) (0%).
None of the households in Mercer, WI 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.
98.7% of the residents in Mercer, WI are U.S. citizens.
In 2023, the median property value in Mercer, WI was $209,100, and the homeownership rate was 71.5%.
Most people in Mercer, WI drove alone to work, and the average commute time was 18.2 minutes. The average car ownership in Mercer, WI was 2 cars per household.