There are 2 Post Offices in Fountain Valley, California, serving a population of 56,640 people in an area of 10 square miles. There is 1 Post Office per 28,320 people, and 1 Post Office per 4 square miles.
In California, Fountain Valley is ranked 1,001st of 1798 cities in Post Offices per capita, and 730th of 1798 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Fountain Valley Post Offices.
US Post Office 18030 Brookhurst Street Suite B Fountain Valley, CA Mailing Service, Postal Services
United States Postal Service 17227 Newhope Street Fountain Valley, CA Mailing Service, Postal Services