Post offices in Glen Carbon, IL

2 locations. Everything in Glen Carbon.

• Glen Carbon Post Office

  USPS

  105 North Main Street

  Mon–Fri8:30 am–5 pmSat8:30 am–11 am
• The UPS Store

  UPS

  3733 South State Route 159

  Mon–Fri8 am–6:30 pmSat9 am–3 pm