There are 3 Post Offices in Clear Lake, South Dakota, serving a population of 1,307 people in an area of 4 square miles. There is 1 Post Office per 435 people, and 1 Post Office per 1 square miles.
In South Dakota, Clear Lake is ranked 189th of 463 cities in Post Offices per capita, and 223rd of 463 cities in Post Offices per square mile.
Find addresses, phone numbers, fax numbers, hours & services for Clear Lake Post Offices.
United States Government 45690 Veteran Clear Lake, SD
United States Government Post Office 205 East Oak Street Clear Lake, SD
United States Postal Service 405 3rd Street West Clear Lake, SD Mailing Service, Postal Services