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Post Offices in Fountain Valley

Click on the Post Office from this list of 2 Post Offices in Fountain Valley to view the opening hours, phone number, drop-off times, services and other information.

1. USPS Post Office Fountain Valley (CA)

17227 Newhope St

Fountain Valley, CA 92728

The Post Office is open Monday to Sunday from 12:01 am to 11:59 pm.

2. USPS Post Office Cpu Clines Stationers

18030 Brookhurst St Ste B

Fountain Valley, CA 92708

The Post Office is open Monday to Friday from 9:00 am to 5:00 pm and on Saturday from 10:00 am to 2:00 pm. It is closed on Sunday.