ZIP Code 63386

63386 is one of Missouri's ZIP codes, delivering to addresses in West Alton, St. Charles County.

City: West Alton
County: St. Charles County
State: Missouri
Prefix: 633xx

Where this code sits

63386 is part of the 633xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to West Alton.

West Alton Missouri ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 63386 delivers to without sharing its boundary.

636 Area code 636

ZIP codes nearest 63386

The ZIP codes whose reference points sit closest to 63386.
ZIP code	Distance	Delivers to
ZIP code 63034	4.2 mi	Florissant, MO
ZIP code 62002	4.9 mi	Alton, IL
ZIP code 62035	5.2 mi	Godfrey, IL
ZIP code 63138	5.3 mi	Saint Louis, MO
ZIP code 63033	6.1 mi	Florissant, MO
ZIP code 63031	7.3 mi	Florissant, MO
ZIP code 62095	8.2 mi	Wood River, IL
ZIP code 62024	8.4 mi	East Alton, IL

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 63386, plotted from its record coordinates.

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

Scope ZIP code 63386. 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.