Agency is a village in Buchanan County, Missouri, United States. The population was 684 at the 2010 census. It is part of the St. Joseph, MO–KS Metropolitan Statistical Area.
Agency is located at 39°38′55″N 94°44′40″W / 39.64861°N 94.74444°W / 39.64861; -94.74444 (39.648739, -94.744418).
According to the United States Census Bureau, the village has a total area of 4.30 square miles (11.14 km2), of which 4.25 square miles (11.01 km2) is land and 0.05 square miles (0.13 km2) is water....
Source: Wikipedia (as of 04/11/2019). Read more from Wikipedia