U S Government--post Office Department, Killen Killen, AL 35645 Phone : (256) 757-3742 Business Category Post Offices Government Offices & Public Schools Post Office - Killen 1650 Highway 72 Killen, AL 35645 Phone : (256) 757-3742 Post Office - Killen Business Category Post Offices Toll-Free           (800) ASK-USPS