Barren County ZIP Codes

Barren County is a county of Kentucky.

ZIP codes: 9
Cities & towns: 8
Area codes: 3
Land area: 487 sq mi

Every ZIP code in Barren County

421xx

The complete list of Barren County, KY ZIP codes with the city each one delivers to.
ZIP code	City
42123	Austin
42127	Cave City
42130	Eighty Eight
42131	Etoile
42141	Glasgow
42142	Glasgow
42152	Hiseville
42156	Lucas
42160	Park City

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Barren County

A further 5 places in Barren 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 Barren County

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

Where Barren County's ZIP codes sit

Each point is the reference point of one Barren 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 Barren 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.