Barnwell Post Office

221 Main St, Barnwell, SC 29812

Contact Numbers

Phone: 803-259-3195
Fax: 803-541-0530
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 24 hours
Tuesday 24 hours
Wednesday 24 hours
Thursday 24 hours
Friday 24 hours
Saturday 24 hours
Sunday 24 hours

Last Collection Times

Monday 5:00pm
Tuesday 5:00pm
Wednesday 5:00pm
Thursday 5:00pm
Friday 5:00pm
Saturday 3:45pm
Sunday Closed

Passport Appointment Hours*

Monday 10:00am - 12:00pm, 1:00pm - 4:00pm
Tuesday 10:00am - 12:00pm, 1:00pm - 4:00pm
Wednesday 10:00am - 12:00pm, 1:00pm - 4:00pm
Thursday 10:00am - 12:00pm, 1:00pm - 4:00pm
Friday 10:00am - 12:00pm, 1:00pm - 4:00pm
Saturday 10:00am - 12:00pm
Sunday Closed

  • Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
  • You will need two forms of Identification with copies.
  • A passport quality photo. Available at location.
  • The appropriate application form printed and filled out, and the required fee for applying or renewing.
  • You can find up to date costs, information, and forms at the State Departments Travel Site

*An appointment is required to apply for or renew US Passports. Please Call or schedule online.

Bulk Mail Acceptance Hours

Monday 9:00am - 2:00pm
Tuesday 9:00am - 2:00pm
Wednesday 9:00am - 2:00pm
Thursday 9:00am - 2:00pm
Friday 9:00am - 2:00pm
Saturday Closed
Sunday Closed

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Passport Acceptance
  • Passport Photo
  • Philatelic Services
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot Parking
  • Passport Appointment Hours

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:

75 Railroad Ave
4.9 miles away

10049 Us Highway 78
5.5 miles away

476 Main St
5.8 miles away

12926 Main St
6.7 miles away


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We are missing a package that was marked delivered in box at 7:58pm on Dec 2 and there wasn't anything there when we got home that evening around 8:30pm. Asked all neighbors they didn't receive it. Very upset. Our postal service has been amazing for the past 3 years since we moved here until the past month or so.Usually delivered no later than 12 noon now it might come around 6-7pm.need help finding my missing package that was actually NOT delivered but marked it was.


Sunday AM after posting my complaint (10hrs later) my package was delivered to my box. Thank you.
• Replied to Sharon Shipp


They need to hire a new passport agent! I was called the day of my son’s passport appointment asking if I could come earlier because the agent had to leave. She said I needed to get there before 11. I got there at 10:45 because I had to go to cvs to get my son’s picture taken. When I got there the guy upfront told me she was gone for the day. They need to purchase a new camera for the passports anyway. It’s never working and people always have to go to cvs to get their photo taken. I have issues every time I have to bring one of my children to go their passport done. This is really ridiculous.


Yesterday i had 2 packages delivered. One was a 8lb sledge hammer. The mail lady that we have in Barnwell decided to drive her mail truck on our dirt that we have grass seed on and make all kinds of tire tracks and must have sank. We had to get put in new pipes a month ago so that was why we had dirt there and grass seed. You can see all kinds of tire marks in it. My husband called the Barnwell post office and was told basically too bad. I took all kinds of pictures and will be calling Customer Service to see what we can do


we have some medical items that we have been looking for, i will run out of this aug 4th, it was shipped on the 24th of july to me from atlanta,ga, tracking number 9400111205995823352649; this is very expenisve medical stuff;; i call the number for the post office in barnwell, no answer.. my number 803-671-5939

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