Hamblen County ZIP Codes

Hamblen County is a county of Tennessee.

ZIP codes: 8
Cities & towns: 5
Area codes: 3
Land area: 161 sq mi

Every ZIP code in Hamblen County

377xx–378xx

The complete list of Hamblen County, TN ZIP codes with the city each one delivers to.
ZIP code	City
37778	Lowland
37813	Morristown
37814	Morristown
37815	Morristown
37816	Morristown
37860	Russellville
37877	Talbott
37891	Whitesburg

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Hamblen County codes above are listed without a column we would have to invent.

Cities and towns in Hamblen County

A further 4 places in Hamblen County appear in the postal source without a page of its own; their codes are in the table above and each one links to its own page.

Area codes covering Hamblen County

Telephone and postal boundaries are drawn by different bodies, so these codes overlap the county without matching its edges.

Where Hamblen County's ZIP codes sit

Each point is the reference point of one Hamblen County ZIP code, plotted from its record coordinates. The outline is the convex envelope of those points — a footprint, not a boundary.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope every ZIP code recorded in Hamblen County. Source GeoNames US postal codes (2026-07 postal dump), Census 2024 county Gazetteer (2024 Gazetteer) and geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot). Updated 16 July 2026. The outline is a convex envelope of ZIP reference points, not a jurisdiction boundary.