Post Office in Union County, IL

Find The Office You Need

• Alto Pass Post Office

  85 North Elm Street, Alto Pass, IL 62905

  618-893-4014
• Anna Post Office

  201 North Main Street, Anna, IL 62906

  618-833-2713
• Cobden Post Office

  113 North Appleknocker Drive, Cobden, IL 62920

  618-893-2742
• Dongola Post Office

  106 East Cross Street, Dongola, IL 62926

  618-827-3824
• Jonesboro Post Office

  103 West Broad Street, Jonesboro, IL 62952

  618-833-2492
• Millcreek Post Office

  60 Walnut Street, Mill Creek, IL 62961

  618-747-2410
• Wolf Lake Post Office

  4675 State Route 3 North, Wolf Lake, IL 62998

  618-833-8223