There are 16 US Post Offices in Bennington County serving a total of 36,112 residents equating to 2,257 residents per post office. It's estimated that approximately 57,639 packages are handled across the 16 county post offices annually. Bennington County is a county in the state of Vermont, in the United States. As of the 2010 census, the population was 37,125. The shire towns (county seats) are jointly Bennington (\"The Southshire\") and Manchester (\"The Northshire\"). Its largest municipality is the town of Bennington. The county was created in 1778."