MARCH GREETINGS McDOWELL COUNTY SUBSCRIBERS: Here's a lil' bit of McDowell's Geography. FROM THE "HERITAGE OF McDOWELL COUNTY WV 1858 TO 1995" McDowell County Historical Society McDowell County's land area consists of 538.40 square miles; bounded on the north by Wyoming County, West Virginia, on the south by Tazewell and Buchanon Counties, Virginia, on the west by Buchanon, Virginia, and Mingo County, West Virginia and Tazewell County, Virginia. The county has the distinction of being the southernmost county of the state.