The Chamber of St Matthews Commonwealth Credit Union Share: Credit Unions Commonwealth Credit Union Visit Website 3704 Frankfort Avenue Louisville, KY 40207 (502) 564-4775 (800) 228-6420 Instagram Hours: Monday to Friday 9 to 5Saturday 10-1 About Map About Commonwealth Credit Union is a cooperative, not-for-profit financial institution owned and operated by its members exclusively to meet their financial needs. Directions Call for directions