USPS Post Office Rialto Annex - Rialto
1630 N Riverside Ave, 92376 Rialto
Today
Today's opening hours
This week's opening hours
Call Referral
- Monday 9:00 am to 5:00 pm
- Tuesday 9:00 am to 5:00 pm
- Wednesday 9:00 am to 5:00 pm
- Thursday 9:00 am to 5:00 pm
- Friday 9:00 am to 5:00 pm
- Saturday 9:00 am to 4:00 pm
- Sunday Closed
Other opening hours
Carrier Call Referral
- Monday to Saturday
- 9:00 am to 4:00 pm
- Sunday
- Closed
Opening hours updated on 11/07/2026
Report a changeThis Post Office at a glance
Opening hours of USPS Post Office Rialto Annex - Rialto: Monday to Friday from 9:00 am to 5:00 pm, Saturday from 9:00 am to 4:00 pm; closed Sunday.
- Opening hours a week
- 47h
- Opening hours a week
- Days open, Monday to Saturday
- 6/7
- Days open, Monday to Saturday
- Earliest opening, Monday to Saturday
- 9:00 am
- Earliest opening, Monday to Saturday
- Latest closing, Monday to Friday
- 5:00 pm
- Latest closing, Monday to Friday
- Open all day
- No break
- Open all day
Special days ahead
Public holidays, closures and special opening hours over the next two months.
- Wednesday, November 11 Veterans Day Opening hours not confirmed
- Thursday, November 26 Thanksgiving Day Opening hours not confirmed
- Friday, December 25 Christmas Opening hours not confirmed
- Friday, January 1 New Year’s Day Opening hours not confirmed
Services
Services Available: 2
Parking 1
Contacts 4
Last Collection 6
Sending from this Post Office
- First-Class Mail from From $0.65 up to Postcards
- Shipping Services from From $7.90 up to USPS Ground Advantage (2–5 days)
Indicative rates subject to change by the postal operator.
- Open
- Closing soon
- Closed
- Opening hours not confirmed
- This address
Practical information
- Type
- Post OfficeA United States Postal Service Post Office: stamps, sending and collecting letters and packages, and the USPS counter services.
- Address
- 1630 N Riverside Ave, 92376 Rialto
- State
- California
- Official website
- usps.com
Good to know
USPS Post Office Rialto Annex - Rialto is in Rialto, at 1630 N Riverside Ave. It opens 6 days a week, Saturday included.
When it is closed, the nearest other offices are USPS Village Post Office (VPO) Rialto 2 (1.8 mi) and USPS Village Post Office (VPO) Rialto Downtown (1.9 mi).
The next public holiday is Veterans Day, Wednesday, November 11. Opening hours often change that day: check them before you go.
Frequently asked questions
Is USPS Post Office Rialto Annex - Rialto open on Saturday?
Yes It is open on Saturday from 9:00 am to 4:00 pm.
Is USPS Post Office Rialto Annex - Rialto open on Sunday?
No It is closed on Sunday.
What time does USPS Post Office Rialto Annex - Rialto close?
It closes Monday to Friday at 5:00 pm and Saturday at 4:00 pm.
Is there a cash machine?
This Post Office does not list a cash machine.