Lewis County is a county located in the U.S. state of Missouri. As of the most recent data available, the county has a population of approximately 10,494 people, with a population density of about 20.78 persons per square mile.
The county spans a total land area of 505.00 square miles (1,308.00 square kilometers). The administrative center and county seat is , which often serves as a hub for local governance and services. The largest city within the county by population is Canton.
Geographically, Lewis County experiences varied elevations, with its highest point at La Belle 738 ft and its lowest point at La Grange 490 ft. The region operates in the UTC-6.