Post Office - Mc Cool 3258 Highway 407 Mc Cool, MS 39108 Phone : (662) 547-6601 Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (601) 351-7510 U S Government--post Office Old Hwy 12 Mc Cool, MS 39108 Phone : (662) 547-6601 Business Category Post Offices Government Offices & Public Schools