Fontana Post Office

NOTICE: The Postal Service is an essential government service, and will remain open wherever possible.

8282 Sierra Ave, Fontana, CA 92335

Contact Numbers

Phone: 909-822-8030
Fax: 909-822-1373
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:00am - 6:00pm
Tuesday 6:00am - 6:00pm
Wednesday 6:00am - 6:00pm
Thursday 6:00am - 6:00pm
Friday 6:00am - 6:00pm
Saturday 6:00am - 6:00pm
Sunday Closed

Last Collection Times

Monday 5:30pm
Tuesday 5:30pm
Wednesday 5:30pm
Thursday 5:30pm
Friday 5:30pm
Saturday 5:30pm
Sunday Closed

Bulk Mail Acceptance Hours

Monday 9:00am - 12:00pm
Tuesday 9:00am - 12:00pm
Wednesday 9:00am - 12:00pm
Thursday 9:00am - 12:00pm
Friday 9:00am - 12:00pm
Saturday Closed
Sunday Closed

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

  • 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
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Sure Money
  • Lot 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:

16731 Santa Ana Ave
1.9 miles away

10191 Linden Ave
2.0 miles away

241 W Rialto Ave
2.5 miles away

Rialto Annex
1630 N Riverside Ave
2.8 miles away


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* Fontana mail lady is been leaving letters in the wrong mailbox on hibiscus ave and randall,this is happening for a long time so please fix this or place the mailbox in front of the houses is gonna be better


My mail was stolen yesterday Monday I filed a police report with Fontana police Dept ... now what I would like is to request my mailBox to be moved to my property How would I be able to do so and if it’s possible thank you


Through this communication, Would like to let you know the bad service that I was subjected to, this Saturday December 28,at the post office in the city of Fontana, a female African American who works there showed a very bad attention in the most impolite and inefficient way that I've never seen before in another post office. I just want to suggest a better training for these persons who deal with the public in their Fontana post office. thank you for attention to this: Ramon Hormaza


Hola, quiero saber si hay un paquete a nombre de Alma Noriega


Hi there, I'm live in fontana so long and the mail is been sending good of the mexican guy but now I don't know why you guy change the new people sending mail it take forever to sending mail, some time my order package it been lose too because they put different mail box and they keep my order package that why I don't like your service so well, I like the mexican guy that are good sending mail I hope that you guy change back the mexican guy to sending out the mail, right now I still waiting and waiting for my mail I don't like this the new people sending out the mail like this. I want the mexican guy to sending the mail. Please send back the mexican guy to sending mail please thank you..I still waiting until now it 5:00 p.m but still not haven mail, if itn't have any mail it still have newspapers but isn't have anything... it not only me other peoples too, I don't like your service it very badly....:(


Hi there, I order some stuff and I receipt today but I don't know why what WTF my item order is been damage I don't know why the mail man or mail women sending mail are not carefully other peoples stuff some they put wrong mail box and or damage peoples stuff I don't know WTF is that? please you need to talk with your peoples mail man or mail women or else I will report in to your post office.... thank you.....
• Replied to tuan


The supervisor is not helpful at all. She is not there to help anyone, but to be rude and disrespectful to others.


Employee hardly ever picks up Telephone at this contact and operator number never works!


I have been trying to contact someone in the office to discuss my mail delivery and every number I call goes unanswered or gets disconnected. I have been trying for over 2 hours.


They suck at everything at this location


Will you send me a message why the postal carrier did not pick up my mail he was across the street my address is 8984 Juniper Ave Apt A Fontana CA 92335

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