United States Government--post Offices, Niota Niota, IL 62358 Phone : (217) 448-4421 Business Category Government Offices-Federal Post Offices Government Offices & Public Schools Post Office - Niota 275 Arbor St Niota, IL 62358 Phone : (217) 448-4421 Business Category Post Offices Toll-Free           (800) ASK-USPS