Twin Falls County ZIP Codes

Twin Falls County is a county of Idaho.

ZIP codes: 9
Cities & towns: 8
Area codes: 2
Land area: 1,922 sq mi

Every ZIP code in Twin Falls County

833xx

The complete list of Twin Falls County, ID ZIP codes with the city each one delivers to.
ZIP code	City
83301	Twin Falls
83302	Rogerson
83303	Twin Falls
83316	Buhl
83321	Castleford
83328	Filer
83334	Hansen
83341	Kimberly
83344	Murtaugh

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Twin Falls County codes above are listed without a column we would have to invent.

Cities and towns in Twin Falls County

A further 1 place in Twin Falls County appears in the postal source without a page of its own; its codes are in the table above and each one links to its own page.

Area codes covering Twin Falls County

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

Where Twin Falls County's ZIP codes sit

Each point is the reference point of one Twin Falls 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 Twin Falls 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.