Greene County, TN's area is 623.94 square miles.
According to census.gov, the total area in square miles of Fayette County, West Virginia, is 668.36.
According to census.gov, the total water area of Fayette County, West Virginia, is 4.43 square miles.
Shelby County with 755 square miles.
Shelby County's total area is 785 square miles including 763 square miles of land area. Shelby County is Tennessee's largest county in area.
Shelby is the largest county in Tennessee based both on population and on area. As of the 2010 census, Shelby County had a population of 927,644. Davidson County is the second largest county in Tennessee with a population of 569,891. Shelby County covers an area of 755 square miles. Wayne County is the second largest county based on area with 734 square miles.
It is 395 square miles.
Shelby County, TN is 784 sq mi (2,031 km²).
Davidson County, Tennessee has total area of 526 square miles.
Shelby County in southwestern Tennessee includes the city of Memphis and is the most populous county in Tennessee. Davidson County in central Tennessee includes Nashville and is the second most populous county in Tennessee. The next largest counties are Knox County (largest city is Knoxville), Hamilton County (largest city is Chattanooga) and Rutherford County (largest city is Murfreesboro).
Anderson County, Tennessee has total area of 345 square miles and population of 75,129 as of the 2010 census.
It has an area of 653 square miles.
Meigs County, TN is 217 sq miles (562 km²).