Alta Loma Post Office

6649 Amethyst Ave, Rancho Cucamonga, CA 91701

Contact Numbers:

Phone: 909-987-0785
Fax: 909-987-3653
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Monday-Friday 8:30am - 5:00pm Saturday-Sunday Closed

Pickup Services Hours

Monday-Friday 8:30am - 5:00pm Saturday-Sunday Closed

Lobby Hours

Monday-Sunday 12:01am - 11:59pm

PO Box Access Hours

Monday-Sunday 12:01am - 11:59pm

Last Collection Hours

Monday-Friday 4:00pm Saturday 3:00pm Sunday Closed

Carrier Facility Hours

Monday 8:15am - 8:15am Tuesday-Sunday Closed

Global Express Guaranteed® Hours

Monday-Friday 8:30am - 5:00pm Saturday-Sunday Closed

*This facility is not a US Passport renewal office. Check nearby locations below to apply for or renew your passport.

*Please call to verify all information

  • Burial Flags
  • General Delivery
  • Global Express Guaranteed®
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Packaged Stamps
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Priority Mail International®

Visit our Links Page for information pertaining to Change of Address, Hold Mail/Stop Delivery, PO Boxes™ rentals and fees, Rates on Postage Stamps and Freight/Shipping, Holidays, Bulk Mail, Money Orders, and Available Jobs for Employment in a new post office career.

*Is any of the above information incorrect? Let us know here

Nearby Post Offices:

Rancho Cucamonga
10950 Arrow Rte
1.9 miles away

Upland
333 E Arrow Hwy
2.4 miles away

Guasti
323 N Turner Ave
2.8 miles away

Ontario
1555 E Holt Blvd
2.9 miles away

Click Here for Larger Map - *Please call to verify location


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