Rock Valley Credit Union is a full-service financial institution serving members since 1968. The credit union now serves approximately 15,000 members. Our main office is located in Loves Park, IL with branch offices in Machesney Park and Rochelle. Rock Valley Credit Union currently serves Winnebago, Boone, Ogle, Lee, DeKalb and Stephenson counties in Illinois along with Rock, Green & Walworth counties in Wisconsin.