There is one unique ZIP code in Fall Branch, Tennessee and it is 37656. Area code: 423.
1
ZIP codes
29.11
sq mi land
0.00
sq mi water
423
area code
Fall Branch, TN ZIP code map
About Fall Branch, TN
Fall Branch is a small unincorporated community located in Washington County in the northeastern corner of Tennessee. Served by a single ZIP code, 37656, this quiet rural community sits within the greater Tri-Cities region of the Appalachian Highlands. Fall Branch offers residents a peaceful, small-town lifestyle with easy access to the larger urban centers of the surrounding region.
Location & geography
Fall Branch is situated in Washington County in upper East Tennessee, nestled among the rolling hills and valleys characteristic of the Ridge and Valley physiographic province. The community lies within reasonable driving distance of Johnson City, Kingsport, and Bristol, placing it at the heart of the celebrated Tri-Cities metro area. With 29.11 square miles of land area and no recorded water area, Fall Branch is an entirely land-locked community defined by its gently undulating terrain and agricultural countryside.
Community & economy
Fall Branch has the character of a close-knit rural community where agriculture, small business, and family life form the backbone of daily living. Residents enjoy a slower pace of life compared to the nearby Tri-Cities urban core, yet benefit from proximity to employment, shopping, and healthcare found in Johnson City and Kingsport. The community reflects the broader culture of upper East Tennessee, with strong traditions of Appalachian heritage, neighborly connection, and outdoor appreciation.
Transportation
Fall Branch is conveniently accessible via Interstate 81, one of the primary corridors through northeastern Tennessee that connects the community to the broader Tri-Cities region and beyond. U.S. Route 11W also serves the area as a historic surface route linking communities throughout the region. The nearest commercial airport is Tri-Cities Regional Airport (TRI), located in Blountville, Tennessee, approximately a short drive from Fall Branch and offering regional and connecting flights.
History
Fall Branch takes its name from a local stream, a naming convention common throughout Appalachian Tennessee where waterways and natural features gave communities their identities. The area developed as an agricultural settlement in Washington County, one of Tennessee's oldest counties, which was established in 1777 and named in honor of George Washington. Over the generations, Fall Branch remained a rural outpost even as the surrounding Tri-Cities region grew into a significant industrial and commercial hub in the twentieth century.
Did you know?
Despite having no surface water area of its own, Fall Branch sits within a broader Washington County landscape rich with creeks, streams, and natural beauty characteristic of the Tennessee Appalachians. The community's single ZIP code, 37656, serves as a tidy geographic identifier for this expansive 29-square-mile rural area tucked into one of Tennessee's most historically significant counties.
