Post offices in Springfield, IL

3 locations. Everything in Springfield.

• Downtown Springfield Post Office

  USPS

  411 East Monroe Street
• Springfield Post Office

  United States Post Office

  411 East Monroe Street

  Mon–Fri7:45 am–5 pm
• Springfield Post Office

  USPS

  2105 East Cook Street

  Mon–Fri7:30 am–5:30 pmSat8 am–3 pm