U S Government--post Offices, Dakota Dakota, IL 61018 Phone : (815) 449-2428 Business Category Post Offices Government Offices & Public Schools United States Government--post Offices, Dakota Freeport, IL 61032 Phone : (815) 449-2428 Business Category Post Offices Government Offices & Public Schools Post Office - Dakota 139 W Main St Dakota, IL 61018 Phone : (815) 449-2428 Post Office - Dakota Business Category Post Offices Toll-Free           (800) ASK-USPS Fax           (815) 449-9210