USPS Post Office Callahan
12436 S State Highway 3, 96014 Callahan
Today
Today's opening hours
This week's opening hours
Retail
- Monday 11:30 am to 3:30 pm
- Tuesday 11:30 am to 3:30 pm
- Wednesday 11:30 am to 3:30 pm
- Thursday 11:30 am to 3:30 pm
- Friday 11:30 am to 3:30 pm
- Saturday Closed
- Sunday Closed
Other opening hours
Bulk Mail Acceptance
- Monday to Friday
- 11:30 am to 3:30 pm
- Saturday
- 10:30 am to 12:30 pm
- Sunday
- Closed
Call Referral
- Monday to Friday
- 11:30 am to 3:30 pm
- Saturday
- 10:30 am to 12:30 pm
- Sunday
- Closed
Lobby
- Monday to Saturday
- 12:01 am to 11:59 pm
- Sunday
- Closed
Pickup Services
- Monday to Friday
- 11:30 am to 3:30 pm
- Saturday
- 10:30 am to 12:30 pm
- Sunday
- Closed
PO Box Access
- Monday to Saturday
- 12:01 am to 11:59 pm
- Sunday
- Closed
Opening hours updated on 11/07/2026
Report a changeThis Post Office at a glance
Opening hours of USPS Post Office Callahan: Monday to Friday from 11:30 am to 3:30 pm; closed Saturday and Sunday.
- Opening hours a week
- 20h
- Opening hours a week
- Days open, Monday to Friday
- 5/7
- Days open, Monday to Friday
- Earliest opening, Monday to Friday
- 11:30 am
- Earliest opening, Monday to Friday
- Latest closing, Monday to Friday
- 3:30 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: 14
Parking 1
Contacts 3
PO Box Delivery 6
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
- 12436 S State Highway 3, 96014 Callahan
- State
- California
- Official website
- usps.com
Good to know
USPS Post Office Callahan is in Callahan, at 12436 S State Highway 3. It opens on weekdays only, 5 days a week.
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 Callahan open on Saturday?
No It is closed on Saturday.
Is USPS Post Office Callahan open on Sunday?
No It is closed on Sunday.
What time does USPS Post Office Callahan close?
It closes Monday to Friday at 3:30 pm.
Is there a cash machine?
This Post Office does not list a cash machine.