St. Francois County ZIP Codes

St. Francois County is a county of Missouri.

ZIP codes: 10
Cities & towns: 10
Area codes: 3
Land area: 452 sq mi

Every ZIP code in St. Francois County

630xx–636xx

The complete list of St. Francois County, MO ZIP codes with the city each one delivers to.
ZIP code	City
63036	French Village
63087	Valles Mines
63601	Park Hills
63624	Bismarck
63626	Blackwell
63628	Bonne Terre
63637	Doe Run
63640	Farmington
63651	Knob Lick
63653	Leadwood

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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

Cities and towns in St. Francois County

A further 5 places in St. Francois 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 St. Francois County

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

Where St. Francois County's ZIP codes sit

Each point is the reference point of one St. Francois 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 St. Francois 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.