Easton is a city in Buchanan County, Missouri, United States. The population was 258 at the 2000 census. It is part of the St. Joseph, MO–KS Metropolitan Statistical Area.
Easton is located at 39°43′22″N 94°38′23″W / 39.72278°N 94.63972°W / 39.72278; -94.63972 (39.722644, -94.639783).
According to the United States Census Bureau, the city has a total area of 0.6 square miles (1.6 km²), all of it land.