 clarksville is a city in red river county, texas, in the united states in the northernmost part of the piney woods region of east texas. as of the 2000 census, the city population was 3,883. it is the county seat of red river county. ==geography== clarksville is located at  (33.611086, -95.052448). according to the united states census bureau, the city has a total area of {{convert|3.0|s
Cities_in_Red_River_County,_Texas Cities_in_Texas County_seats_in_Texas