Buena Vista County ZIP Codes

Buena Vista County is a county of Iowa.

ZIP codes: 9
Cities & towns: 9
Area codes: 1
Land area: 575 sq mi

Every ZIP code in Buena Vista County

505xx–510xx

The complete list of Buena Vista County, IA ZIP codes with the city each one delivers to.
ZIP code	City
50510	Albert City
50565	Marathon
50568	Newell
50576	Rembrandt
50585	Sioux Rapids
50588	Storm Lake
50592	Truesdale
51002	Alta
51033	Linn Grove

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Buena Vista County

Area codes covering Buena Vista County

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

712 Area code 712

Where Buena Vista County's ZIP codes sit

Each point is the reference point of one Buena Vista 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 Buena Vista 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.