There are 2 Post Offices in Arnold, California, serving a population of 2,798 people in an area of 15 square miles. There is 1 Post Office per 1,399 people, and 1 Post Office per 7 square miles.
In California, Arnold is ranked 498th of 1798 cities in Post Offices per capita, and 883rd of 1798 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Arnold Post Offices.
US Post Office 4036 Old Highway 4 Arnold, CA Mailing Service, Postal Services
United States Postal Service 997 Blagen Road Arnold, CA Freight Trucking, Logistics, Mailing Service, Postal Services