There are 2 Post Offices in Essex, Illinois, serving a population of 875 people in an area of 3 square miles. There is 1 Post Office per 437 people, and 1 Post Office per 1 square miles.
In Illinois, Essex is ranked 398th of 1547 cities in Post Offices per capita, and 652nd of 1547 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Essex Post Offices.
US Post Office 200 West Main Street Essex, IL
United States Postal Service 200 West Main Street Essex, IL Mailing Service, Postal Services