Post office · Clearlake, CA

United States Post Office

14500 OLYMPIC DRIVE

Clearlake, CA 95422

Address

14500 Olympic Drive, Clearlake, CA 95422

Phone

+1-800-275-8777

Opening hours

Hours may differ on public holidays.

Coordinates

38.962500, -122.639601

This listing is based on OpenStreetMap data (updated 2026-10-06). Something wrong? Fix it on OpenStreetMap or let us know.

Frequently asked questions

Where is United States Post Office?

United States Post Office is located at 14500 Olympic Drive, Clearlake, CA 95422. Use “Get directions” to start a route from where you are.

What is the phone number of United States Post Office?

The listed phone number is +1-800-275-8777.

What are the opening hours of United States Post Office?

Recorded opening hours: Monday – Friday 10 AM–5 PM; Saturday 10 AM–12:30 PM; Sunday Closed. Hours may differ on holidays.