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In 2022, Rock County, WI had a population of 164k people with a median age of 40 and a median household income of $70,630. Between 2021 and 2022 the population of Rock County, WI grew from 163,522 to 163,817, a 0.18% increase and its median household income grew from $65,518 to $70,630, a 7.8% increase.
5 days ago · Discover Rock County, WI’s population & how it has changed over time. USAFacts uses Census data to break down the population of Rock County by race, age,and more. View today.
As of the census [ 12 ] of 2000, were 152,307 people, 58,617 households, and 40,387 families residing in the county. The population density was 211 people per square mile (81 people/km 2). there were 62,187 housing units at an average density of 86 units per square mile (33 units/km 2).
Rock County, Wisconsin's estimated 2024 population is 164,715 with a growth rate of 0.27% in the past year according to the most recent United States census data. Rock County, Wisconsin is the 9th largest county in Wisconsin. The 2010 population was 160,261 and has seen a growth of 2.78% since that time.
- 1,633
- 1,479
- 723
- 3,462
Census data for Rock County, WI (pop. 164,060), including age, race, sex, income, poverty, marital status, education and more.
In 2020, Rock County, WI had a population of 163k people with a median age of 39.8 and a median household income of $59,519. Between 2019 and 2020 the population of Rock County, WI grew from 162,152 to 162,532, a 0.234% increase and its median household income grew from $57,875 to $59,519, a 2.84% increase.
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The estimated population of Rock County, Wisconsin is 163,522 people, with a median age of 39.8. We can look at the total population in Rock County over the last 5 years to see how much it has changed. Population of Rock County, Wisconsin by Race and Ethnicity.