In 2021, Rock County, WI had a population of 164k people with a median age of 39.8 and a median household income of $65,518. Between 2020 and 2021 the population of Rock County, WI grew from 162,532 to 163,522, a 0.609% increase and its median household income grew from $59,519 to $65,518, a 10.1% increase.
The 5 largest ethnic groups in Rock County, WI are White (Non-Hispanic) (81.3%), Black or African American (Non-Hispanic) (4.7%), Other (Hispanic) (3.99%), White (Hispanic) (3.15%), and Two+ (Non-Hispanic) (3.06%).
None of the households in Rock County, 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.
97.3% of the residents in Rock County, WI are U.S. citizens.
In 2021, the median property value in Rock County, WI was $165,800, and the homeownership rate was 69.2%.
Most people in Rock County, WI drove alone to work, and the average commute time was 23 minutes. The average car ownership in Rock County, WI was 2 cars per household.