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Zip Code 37656 — Fall Branch, TN

37656 is a ZIP Code associated with Fall Branch, TN, located within Washington. The postal region supports an estimated population of 3,849 residents across Data Pending housing units, with a population density of 51.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (36.399970, -82.630750)

Data MetricLocal Statistic
Postal / Zip Code37656
Primary CityFall Branch
State / ProvinceTN
CountyWashington
Total Population3,849
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density51.1 people/sq mi
TimezoneAmerica/New_York

How 37656 Compares

MetricZIP 37656Washington CountyTN State Average
Population3,849146,0677,058,868
Median IncomeData PendingN/AN/A
Population Density51.1 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 37663Kingsport9.2 mi14,230N/A
Zip 37660Kingsport9.5 mi40,996N/A
Zip 37615Johnson City9.9 mi22,821N/A
Zip 37681Limestone10.0 mi5,723N/A
Zip 37664Kingsport10.3 mi28,267N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →