Warren 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 24,525 people, with a population density of about 56.77 persons per square mile.
The county spans a total land area of 432.00 square miles (1,119.00 square kilometers). The administrative center and county seat is Warrenton, which often serves as a hub for local governance and services. The largest city within the county by population is Warrenton.
Geographically, Warren County experiences varied elevations, with its highest point at Truesdale 863 ft and its lowest point at Marthasville 496 ft. The region operates in the UTC-6.