Sullivan County, Tennessee Zip Codes

Zip Code	City	Population
37660	Kingsport	39,481
37620	Bristol	38,245
37664	Kingsport	28,804
37617	Blountville	14,519
37663	Kingsport	13,658
37618	Bluff City	12,792
37686	Piney Flats	8,848
37665	Kingsport	5,540

Population is the most recent figure from the U.S. Census Bureau's 2022 American Community Survey (ACS) 5-Year Estimates.