St. Clair County is home to 144,672 Illinois residents. Over the past ten years, the county has seen a drop in growth of -86.67%, ranking it #2,227 in the US and #65 in Illinois for population growth.
Based on the counties residents and economy, St. Clair County, IL is OK for retirees and okay for families.
When considering schools and educational attainment, 89% of residents over 25 years of age graduated high school and 23.6% completed their bachelor’s degree or higher. The majority of students in St. Clair County attend public school.
If diversity is essential, St. Clair County received a C grade in diversity.