There are 2 Post Offices in St. Charles, Idaho, serving a population of 106 people in an area of 1 square miles. There is 1 Post Office per 53 people, and 1 Post Office per square mile.
In Idaho, St. Charles is ranked 50th of 300 cities in Post Offices per capita, and 71st of 300 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for St. Charles Post Offices.
US Post Office 195 North Main Street St. Charles, ID
United States Postal Service 195 North Main Street St. Charles, ID Mailing Service, Postal Services