There are 8 Post Offices in Mariposa County, California, serving a population of 17,658 people in an area of 1,449 square miles. There is 1 Post Office per 2,207 people, and 1 Post Office per 181 square miles.
In California, Mariposa County is ranked 8th of 58 counties in Post Offices per capita, and 42nd of 58 counties in Post Offices per square mile.
Find Mariposa County, California post offices and USPS mailing boxes.
Catheys Valley Post Office 2675 Highway 140 Catheys Valley, CA
Coulterville Post Office 5008 Main Street Coulterville, CA
El Portal Post Office 5508 Foresta Road El Portal, CA
Fish Camp Post Office 7733 Fish Camp Lane Fish Camp, CA
Hornitos Post Office 2885 Bear Valley Road Hornitos, CA
Mariposa Post Office 5109 Jessie Street Mariposa, CA
Midpines Post Office 6629 California 140 Midpines, CA
Yosemite National Park Post Office 9017 Village Drive Yosemite Valley, CA
Mariposa County Post Offices are branch locations of the customer service postal facilities of the United States Postal Service (USPS) in Mariposa County, CA. The USPS is an independent agency of the federal government that provides mail and package delivery services to all states and territories. Mariposa County post offices are supported entirely by revenues generated by their own operations. Operational authority over the USPS lies with a Board of Governors and rate setting authority falls under the Postal Rate Commission.You may contact the Post Office for questions about: