Texas's 856-square-mile Knox County covers less than one percent of the state's total land area. Of Texas's 254 counties, Knox County ranks 212th in terms of the size of its population (3,860, according to 2015 Census estimates). Mining and mineral extraction-related services are the main economic drivers in this part of Texas. Recent Lands of America data shows that the average price-per-acre value of land and acreage for sale in Knox County is $1,028. The average listing price was $2,827,571 (the most expensive listing being for $20.7 million) and the median size of land and property for sale in Knox County was 947 acres. Land for sale in Knox County totaled 82,519 acres and $84.8 million in overall land value, with the city of Knox City featuring the most land for sale in the county. Farmland was the most common type of land for sale in Knox County.