Oshkosh Post Office

1025 W 20th Ave, Oshkosh, WI 54903

Contact Numbers

Phone: 920-236-0627
Fax: 920-236-8703
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 6:30pm
Tuesday 6:30pm
Wednesday 6:30pm
Thursday 6:30pm
Friday 6:30pm
Saturday 6:30pm
Sunday Closed

Passport Appointment Hours*

Monday 10:00am - 5:00pm
Tuesday 10:00am - 5:00pm
Wednesday 10:00am - 5:00pm
Thursday 10:00am - 5:00pm
Friday 10:00am - 5:00pm
Saturday 10:00am - 1:00pm
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 10:00am - 6:00pm
Tuesday 10:00am - 6:00pm
Wednesday 10:00am - 6:00pm
Thursday 10:00am - 6:00pm
Friday 10:00am - 6:00pm
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
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money
  • 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:

Oshkosh Carrier Annex
1900 Venture Dr
0.4 mile away

Downtown Oshkosh
130 State St
1.4 miles away

Winnebago
4060 County Road a
3.6 miles away

Van Dyne
N9519 Van Dyne Rd
5.0 miles away

Reviews

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I don't know who to contact for this issue but, here goes, about a week and a half ago I took a large vanilla envelope to the Oshkosh post office on 20th street to be mailed to my son in law in Michigan. It contained my taxes and he has not received it.can anybody help me with that. Is it lost or laying some where? I have a return address on it. I always thought it would come back to me. Can anyone please help me. Thank you
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Our company had the same mail lady for a long while and she provided great service. She recently took a new route and we were lucky enough to get a great gal in place of her. She is friendly and has displayed care that our need are being met to the best of her ability.
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Our mail lady Lisa is absolutely the best! Always friendly and leaves treats for our puppy. Once when our Mail box broke she stopped, brought mail to the house to ask if everything was ok. Amazing service.
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Can’t believe it cost $40 ($39.95) to complete a address change over the Internet on their website! What a ripoff!
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I did one online - Cost $1.00 & that was to use a credit card to verify you were you said you are. Not sure who you paid & for what?
• Replied to Carrie Gross

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Can I move our mailbox from one side of the road to another??
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Call to track a package that has been sitting at the distribution center since Sunday which is 4 days ago. I get voicemail. And I highly doubt anyone will call back.
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Sent two wedding invitations to Colorado from Oshkosh. Both never arrived. One was sent a month ago. The second to the same address over a week ago. We need the pony express again. It may take longer but at least mail would be delivered
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Today, june 8th is the third time this week that we have not had mail delivered. This is a 16 unit apartment complex, so Someone would have mail. Horrible service
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Package transferred to Oshkosh 5/3 from UPS. Today 5/10, after numerous calls to ups, oshkosh and my local post office, the package can ONLY be lost at oshkosh. They deny ever receiving even though they say they got the electronic shipment info. Hmm At least they could admit it got lost!
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We try do change address for week and it online thing won't accept are cards....so u need fix change address website it doesn't accept change
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I sent 2 birthday cards out on January 9th. 1 local & 1 for a Laona address. It took a week & a half to reach their destination! This is NOT acceptable service!
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