There are 4 US Post Offices in Schuyler County serving a total of 3,753 residents equating to 938 residents per post office. It's estimated that approximately 5,990 packages are handled across the 4 county post offices annually. Schuyler County is a county located in the northeastern portion of the U.S. state of Missouri. As of the 2010 census, the population was 4,431, making it the fourth-least populous county in Missouri. Its county seat is Lancaster. The county was organized February 14, 1845, and named for General Philip Schuyler, delegate to the Continental Congress and U.S. Senator from New York. Schuyler County is part of the Kirksville, MO Micropolitan Statistical Area. The USS Schuyler (AK-209), a World War II-era cargo ship, was named in part for Schuyler County, Missouri."