Passport Application Services - Nixa 404 W South St Nixa, MO 65714 Phone : (417) 725-5112 Business Category Passport Application Services Toll-Free           (800) ASK-USPS Post Office - Nixa 404 W South St Nixa, MO 65714 Phone : (417) 725-5112 Post Office - Nixa Business Category Post Offices Toll-Free           (800) ASK-USPS