Clearlake Post Office

14500 Olympic Dr, Clearlake, CA 95422

Contact Numbers

Phone: 707-994-6790
Fax: 707-994-9746
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Lobby Hours
PO Box Access Available

Monday 6:30am - 7:30pm
Tuesday 6:30am - 7:30pm
Wednesday 6:30am - 7:30pm
Thursday 6:30am - 7:30pm
Friday 6:30am - 7:30pm
Saturday 6:30am - 7:30pm
Sunday 6:30am - 7:30pm

Last Collection Times

Monday 4:15pm
Tuesday 4:15pm
Wednesday 4:15pm
Thursday 4:15pm
Friday 4:15pm
Saturday 11:00am
Sunday Closed

Passport Appointment Hours*

Monday 11:00am - 4:00pm
Tuesday 11:00am - 4:00pm
Wednesday 11:00am - 4:00pm
Thursday 11:00am - 4:00pm
Friday 11:00am - 4:00pm
Saturday Closed
Sunday Closed

  • Visit our Passport FAQ page for a complete overview of what to bring, what you need to know, and how long it will take.
  • You will need two forms of Identification with copies.
  • A passport quality photo. Available at location.
  • The appropriate application form printed and filled out, and the required fee for applying or renewing.
  • You can find up to date costs, information, and forms at the State Departments Travel Site

*An appointment is required to apply for or renew US Passports. Please Call or schedule online.

Bulk Mail Acceptance Hours

Monday 10:00am - 4:00pm
Tuesday 10:00am - 4:00pm
Wednesday 10:00am - 4:00pm
Thursday 10:00am - 4:00pm
Friday 10:00am - 4:00pm
Saturday Closed
Sunday Closed

  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Business Line
  • Business Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Passport Acceptance
  • Passport Photo
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Lot Parking
  • Passport Appointment Hours

Visit our Links Page for 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:

Clearlake Park
13417 Lakeshore Dr
0.9 mile away

Lower Lake
16165 Main St
2.4 miles away

Clearlake Oaks
13280 E Highway 20
2.7 miles away

9530 Highway 20
4.5 miles away


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Went this morning the lady on the counter very rude to me I ask black pen and she said oh you don’t have pen you used our supply 😟 I was very disappointed her attitude was bad with me .I’m living Clearlake last 30 years


I can't get mail at my address that's been here for over 50 years my son's movie was stolen by clearlake post office I can't get packages because they return them do your job I'm a plumber 27 years I know what's up u don't leave a slip saying I have a package to pic up at post office so much BS


Highly dissapointed. Yesterday mail carrier stopped twice for some stupid reason, didnt deliver the package i was expecting then said they couldnt access my door or the mailbox wich is a complete asinine lie. I watch them stop at my box two times!!!! Then today they said the same thing yet they did not even drive by. What is actually going on?


This Post Office is the best I've ever used. The people working behind the counter are friendly, extremely patient and even have a sense of humor. LOVE IT! One drawback is that the lobby is not 24 hrs anymore due to homeless invasion.


Hi ! Thanks for all the great service here in lake county Ca. I have been in other countries and we have it good here, still. Wonder if your on line could contain a question box, to ask such ?s as, Does your Clear Lake Ca. office ship over night's on saturday?


How much does it cost to change po boxes in same post office?

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