Sullivan County is a county located in the U.S. state of Tennessee. When originally established in 1779, it was a North Carolina county; and from 1784 to 1788 was part of the extra-legal State of Franklin. As of 2010, the population was 156,823. Its county seat is Blountville.
Sullivan County is part of the Kingsport–Bristol (TN)–Bristol (VA) Metropolitan Statistical Area, which is a component of the Johnson City–Kingsport–Bristol, TN-VA Combined...
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Sullivan County is a county located in the U.S. state of Tennessee. When originally established in 1779, it was a North Carolina county; and from 1784 to 1788 was part of the extra-legal State of Franklin. As of 2010, the population was 156,823. Its county seat is Blountville.
Sullivan County is part of the Kingsport–Bristol (TN)–Bristol (VA) Metropolitan Statistical Area, which is a component of the Johnson City–Kingsport–Bristol, TN-VA Combined Statistical Area – commonly known as the "Tri-Cities" region.
According to the U.S. Census Bureau, the county has a total area of 430 square miles (1,113 km²), of which 413 square miles (1,070 km²) is land and 17 square miles (43 km²) (3.88%) is water. Sullivan County's boundary with Carter County and Johnson County is defined as the ridgeline of Holston Mountain.
Morrill Cave (also known as Worleys Cave) is a Tennessee State Natural Area. The cave has a surveyed length of 4.4 miles, making it the second longest cave in East Tennessee and...
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