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







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 4:00pm
Tuesday 4:00pm
Wednesday 4:00pm
Thursday 4:00pm
Friday 4:00pm
Saturday 3:00pm
Sunday Closed

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

  • Burial Flags
  • 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
  • Street Parking

Visit our Links Page for links to 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:

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

Reviews

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Be advised USPS as of 08NOV14 - carriers who sub for reg delivery person are stopping by only to collect mail as flagged but they have demonstrated over the past three days to not deliver anything. Is this the new standard? Where are my bills that normally come? They pull into the cul de sac, eval the flags, then scoot.
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