ZIP Code 63640

63640 is one of Missouri's ZIP codes, delivering to addresses in Farmington, St. Francois County.

City: Farmington
County: St. Francois County
State: Missouri
Prefix: 636xx

Where this code sits

63640 is part of the 636xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Farmington.

Farmington Missouri ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 63640 delivers to without sharing its boundary.

ZIP codes nearest 63640

The ZIP codes whose reference points sit closest to 63640.
ZIP code	Distance	Delivers to
ZIP code 63637	5.6 mi	Doe Run, MO
ZIP code 63601	6.6 mi	Park Hills, MO
ZIP code 63651	7.4 mi	Knob Lick, MO
ZIP code 63624	10 mi	Bismarck, MO
ZIP code 63653	11 mi	Leadwood, MO
ZIP code 63628	13 mi	Bonne Terre, MO
ZIP code 63670	14 mi	Sainte Genevieve, MO
ZIP code 63036	15 mi	French Village, MO

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 63640, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 63640. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.