In 2019, St. Joseph County, IN had a population of 272k people with a median age of 36.9 and a median household income of $53,456. Between 2018 and 2019 the population of St. Joseph County, IN grew from 270,771 to 271,826, a 0.39% increase and its median household income declined from $54,434 to $53,456, a −1.8% decrease.
The 5 largest ethnic groups in St. Joseph County, IN are White (Non-Hispanic) (71.3%), Black or African American (Non-Hispanic) (12.5%), White (Hispanic) (5.85%), Two+ (Non-Hispanic) (3.52%), and Asian (Non-Hispanic) (2.61%). 0% of the households in St. Joseph County, IN speak a non-English language at home as their primary language.
95.5% of the residents in St. Joseph County, IN are U.S. citizens.
In 2019, the median property value in St. Joseph County, IN was $136,800, and the homeownership rate was 69%. Most people in St. Joseph County, IN drove alone to work, and the average commute time was 21.1 minutes. The average car ownership in St. Joseph County, IN was 2 cars per household.