There are 22 US Post Offices in Washington County serving a total of 60,944 residents equating to 2,770 residents per post office. It's estimated that approximately 97,273 packages are handled across the 22 county post offices annually. Washington County is a county located in the U.S. state of Vermont, named after George Washington. As of the 2010 census, the population was 59,534, making it the third-most populous county in Vermont, but the second-least populous capital county in the nation, after Hughes County, in South Dakota. Its county seat is the municipality of Montpelier, the state capital. The county was created in 1810 as Jefferson County and organized the following year. Washington County comprises the Barre, VT Micropolitan Statistical Area. In 2010, the center of population of Vermont was located in Washington County, in the town of Warren."