1. US Post Office 115 E 1st St, Udall, KS 67146 Coordinate: 37.387417,-97.11643 Phone: (800) 275-8777
2. United States Postal Service 115 E 1st St, Udall, KS 67146 Coordinate: 37.38736,-97.11641 Phone: (620) 782-3551