In 2020, St. Croix County, WI had a population of 89.7k people with a median age of 39.2 and a median household income of $84,985. Between 2019 and 2020 the population of St. Croix County, WI grew from 88,732 to 89,702, a 1.09% increase and its median household income grew from $84,756 to $84,985, a 0.27% increase.
The 5 largest ethnic groups in St. Croix County, WI are White (Non-Hispanic) (93.6%), Two+ (Non-Hispanic) (2.06%), White (Hispanic) (1.6%), Asian (Non-Hispanic) (0.919%), and Black or African American (Non-Hispanic) (0.712%).
None of the households in St. Croix 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.
99.1% of the residents in St. Croix County, WI are U.S. citizens.
In 2020, the median property value in St. Croix County, WI was $264,100, and the homeownership rate was 77.2%. Most people in St. Croix County, WI drove alone to work, and the average commute time was 26.7 minutes. The average car ownership in St. Croix County, WI was 2 cars per household.