Number of Private for All Industries in St. Clair County, MI was 3299.00000 Establishments in July of 2023, according to the United States Federal Reserve. Historically, Number of Private for All Industries in St. Clair County, MI reached a record high of 3425.00000 in January of 2001 and a record low of 2303.00000 in January of 1990. Trading Economics provides the current actual value, an historical data chart and related indicators for Number of Private for All Industries in St. Clair County, MI - last updated from the United States Federal Reserve on June of 2024.