Corporate headquarters Integrity Insurance Company Physical Address 2121 East Capitol Drive Appleton, Wisconsin 54912 Mailing Address (USPS) P.O. Box 539 Appleton, WI 54912-0539 Pay by mail (Please include your policy number on the check.) Mail payments to: Integrity Insurance Company P.O. Box 88017 Chicago, IL 60680-1017 Mortgage billed payments: Integrity Insurance Company P.O. Box 740604 Cincinnati, OH 45274-0604 Corporate headquarters: Integrity Insurance Company 2121 East Capitol Drive, P.O. Box 539 Appleton, WI 54912-0539 Grange Life payments: Grange Life Insurance Company P.O. Box 740836 Cincinnati, OH 45274-0836