Clarksville, TX is a city located in Red River County, Texas and has a land area of 321.57 square miles (832.86 km2). The water area for the city is 4.64 square miles or 12.02 km2. There is one unique zip code in Clarksville, Texas and it is 75426. The area code(s) for Clarksville is 903/430.
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