State: Tennessee County: Washington County Metro Area: Johnson City Metro Area City: Johnson City Zip Codes: 37601 37604 37686 37614 Cost of Living: -15.4% lower Time zone: Eastern Standard Time (EST) Elevation: 1662 ft above sea level. Discover the best places to live in and around Johnson City, TN. Includes a list and map of the best Johnson City, TN neighborhoods as well as the best cities to live in near Johnson City, TN.