USPS Post Office Clearlake
12639 State Highway 9, 98235 Clearlake
Today
Today's opening hours
This week's opening hours
Retail
- Monday 8:30 am to 12:00 pm 1:00 pm to 4:45 pm
- Tuesday 8:30 am to 12:00 pm 1:00 pm to 4:45 pm
- Wednesday 8:30 am to 12:00 pm 1:00 pm to 4:45 pm
- Thursday 8:30 am to 12:00 pm 1:00 pm to 4:45 pm
- Friday 8:30 am to 12:00 pm 1:00 pm to 4:45 pm
- Saturday Closed
- Sunday Closed
Other opening hours
Call Referral
- Monday to Friday
- 8:30 am to 12:00 pm, 1:00 pm to 4:45 pm
- Saturday and Sunday
- Closed
Lobby
- Monday to Friday
- 8:15 am to 5:15 pm
- Saturday
- 7:15 am to 10:00 am
- Sunday
- Closed
Pickup Services
- Monday to Thursday
- 8:30 am to 12:00 pm, 1:00 pm to 4:45 pm
- Friday
- 8:30 am to 12:00 pm, 1:00 pm to 4:30 pm
- Saturday
- 9:00 am to 10:00 am
- Sunday
- Closed
PO Box Access
- Monday to Friday
- 8:15 am to 5:15 pm
- Saturday
- 7:15 am to 10:00 am
- Sunday
- Closed
Opening hours updated on 11/07/2026
Report a changeThis Post Office at a glance
Opening hours of USPS Post Office Clearlake: Monday to Friday from 8:30 am to 12:00 pm and from 1:00 pm to 4:45 pm; closed Saturday and Sunday.
- Opening hours a week
- 36h 15m
- Opening hours a week
- Days open, Monday to Friday
- 5/7
- Days open, Monday to Friday
- Earliest opening, Monday to Friday
- 8:30 am
- Earliest opening, Monday to Friday
- Latest closing, Monday to Friday
- 4:45 pm
- Latest closing, Monday to Friday
- Break, Monday to Friday
- 12:00 pm to 1:00 pm
- Break, Monday to Friday
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: 12
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
- 12639 State Highway 9, 98235 Clearlake
- State
- Washington
- Official website
- usps.com
Good to know
USPS Post Office Clearlake is in Clearlake, at 12639 State Highway 9. It opens on weekdays only, 5 days a week.
When it is closed, the nearest other offices are USPS Post Office Sedro Woolley (2.9 mi) and USPS Post Office Burlington (4.3 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 Clearlake open on Saturday?
No It is closed on Saturday.
Is USPS Post Office Clearlake open on Sunday?
No It is closed on Sunday.
What time does USPS Post Office Clearlake close?
It closes Monday to Friday at 4:45 pm.
Is there a cash machine?
This Post Office does not list a cash machine.