Simpson County ZIP Codes

Simpson County is a county of Mississippi.

ZIP codes: 6
Cities & towns: 6
Area codes: 2
Land area: 589 sq mi

Every ZIP code in Simpson County

390xx–391xx

The complete list of Simpson County, MS ZIP codes with the city each one delivers to.
ZIP code	City
39044	Braxton
39062	D Lo
39082	Harrisville
39111	Magee
39114	Mendenhall
39149	Pinola

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in Simpson County

A further 3 places in Simpson 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 Simpson County

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

Where Simpson County's ZIP codes sit

Each point is the reference point of one Simpson 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 Simpson 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.