Capital Square Post Office

400 Locust St Ste 185, Des Moines, IA 50309

Contact Numbers

Phone: 515-283-7730
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 9:00am - 5:00pm
Tuesday 9:00am - 5:00pm
Wednesday 9:00am - 5:00pm
Thursday 9:00am - 5:00pm
Friday 9:00am - 5:00pm
Saturday Closed
Sunday Closed

Last Collection Times

Monday 5:15pm
Tuesday 5:15pm
Wednesday 5:15pm
Thursday 5:15pm
Friday 5:15pm
Saturday Closed
Sunday Closed

*This facility does not process US Passports applications or renewals. Check nearby locations below.

  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Street Parking

Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

Des Moines
1165 2nd Ave
0.5 mile away

University Station
2323 Forest Ave
1.3 miles away

South Des Moines
430 E McKinley Ave
1.9 miles away

East Side
1501 E Fleming Ave
2.1 miles away


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Sometimes the Post Office at 400 Locust St., Des Moines, Iowa is closed during the weekday, between 9am-5pm. Please add a postal employee during lunch/breaks to this location especially during the Christmas season. Thank you and Merry Christmas

* is not a part of, or affiliated with, the official United States Postal Service (USPS).