USPS Ontario, CA
About USPS
United States Postal Service (USPS) is an independent agency of the United States federal government, responsible for providing postal services within the country. It is the only organization in the US that is authorized to deliver mail to every address, including PO boxes and military addresses. With a network of more than 31,000 retail locations and delivery points, USPS serves millions of customers every day. The company offers a range of services, including first-class and priority mail, international shipping, flat-rate boxes, and more. Known for its reliable and efficient service, USPS is a trusted partner for individuals and businesses across the country.
123 W Holt Blvd, Ontario CA 91762
(909) 933-3837
Monday-Friday: 9:00 AM-5:00 PM, Saturday-Sunday: Closed
1118 W Mission Blvd, Ste D
(909) 391-3700
1126 N Mountain Ave, Ontario CA 91762
(909) 933-3837
Monday-Friday: 8:30 AM-5:00 PM, Saturday-Sunday: Closed
1555 E Holt Blvd, Ontario CA 91761
(909) 933-3837
Monday-Sunday: Open 24 hours
333 E Arrow Hwy, Upland CA 91785
(909) 946-8134
Monday-Friday: 6:00 AM-7:00 PM, Saturday: 6:00 AM-6:00 PM, Sunday: Closed
5186 Benito St, Montclair CA 91763
(909) 624-5438
Monday-Friday: 9:00 AM-5:00 PM, Saturday: 9:00 AM-1:00 PM, Sunday: Closed
5375 Walnut Ave, Chino CA 91708
(909) 364-1361
Monday-Wednesday: Open 24 hours, Thursday-Friday: 5:00 AM-7:00 PM, Saturday: 5:00 AM-6:00 PM, Sunday: Open 24 hours
8. USPS Post Office Guasti
3.6 mi
323 N Turner Ave, Guasti CA 91743
(909) 937-6749
Monday-Friday: 8:30 AM-5:00 PM, Saturday-Sunday: Closed
1607 N Mountain Ave, Upland CA 91784
(909) 985-0914
Monday-Friday: 10:00 AM-6:00 PM, Saturday: 10:00 AM-3:00 PM, Sunday: Closed
140 Harvard Ave, Claremont CA 91711
(909) 625-7161
Monday-Friday: 8:30 AM-5:00 PM, Saturday: 9:00 AM-1:00 PM, Sunday: Closed
10950 Arrow Rte, Rancho Cucamonga CA 91729
(909) 483-2184
Monday-Friday: 6:00 AM-7:00 PM, Saturday: 6:00 AM-6:00 PM, Sunday: Closed
6649 Amethyst Ave, Rancho Cucamonga CA 91701
(909) 987-0785
Monday-Friday: 8:30 AM-5:00 PM, Saturday-Sunday: Closed
580 W Monterey Ave, Pomona CA 91769
(909) 865-1267
Monday-Friday: 9:00 AM-5:00 PM, Saturday: 9:00 AM-1:00 PM, Sunday: Closed
3355 N White Ave, La Verne CA 91750
(909) 392-4681
Monday-Friday: 8:30 AM-6:00 PM, Saturday: 9:00 AM-4:00 PM, Sunday: Closed
10798 Jurupa Rd, Jurupa Valley CA 91752
(951) 685-1071
Monday-Friday: 8:30 AM-5:00 PM, Saturday: 9:00 AM-12:00 PM, Sunday: Closed
300 E Bonita Ave, San Dimas CA 91773
(909) 599-0651
Monday-Sunday: Open 24 hours
23545 Palomino Dr, Ste A
(909) 860-4900
Monday-Friday: 9:00 AM-5:30 PM, Saturday: 9:00 AM-3:30 PM, Sunday: Closed
9036 Mission Blvd, Jurupa Valley CA 92509
(909) 360-9451
Monday-Friday: 9:00 AM-5:00 PM, Saturday-Sunday: Closed
1152 Via Verde, San Dimas CA 91773
(909) 599-3444
Monday-Friday: 9:00 AM-6:00 PM, Saturday: 9:00 AM-4:00 PM, Sunday: Closed
1317 S Diamond Bar Blvd, Diamond Bar CA 91765
(909) 860-2469
Monday-Friday: 6:00 AM-6:00 PM, Saturday: 6:00 AM-5:00 PM, Sunday: Closed
21. USPS Post Office Southside
12.0 mi
16731 Santa Ana Ave, Fontana CA 92337
(909) 350-3466
Monday-Friday: 10:00 AM-5:00 PM, Saturday-Sunday: Closed
8282 Sierra Ave, Fontana CA 92335
(909) 822-8030
Monday-Saturday: 6:00 AM-6:00 PM, Sunday: Closed
23. USPS Post Office Rubidoux
12.4 mi
8082 Limonite Ave, Ste 1
(951) 727-8346
Monday-Friday: 9:00 AM-5:00 PM, Saturday: 10:00 AM-2:00 PM, Sunday: Closed
5600 Mission Blvd, Jurupa Valley CA 92509
(951) 782-8037