ZIP Code 63473

63473 is one of Missouri's ZIP codes, delivering to addresses in Williamstown, Lewis County.

City: Williamstown
County: Lewis County
State: Missouri
Prefix: 634xx

Where this code sits

63473 is part of the 634xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Williamstown.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 63473 delivers to without sharing its boundary.

ZIP codes nearest 63473

The ZIP codes whose reference points sit closest to 63473.
ZIP code	Distance	Delivers to
ZIP code 63457	9.8 mi	Monticello, MO
ZIP code 63474	11 mi	Wyaconda, MO
ZIP code 63452	11 mi	Lewistown, MO
ZIP code 63447	12 mi	La Belle, MO
ZIP code 63445	13 mi	Kahoka, MO
ZIP code 63466	14 mi	Saint Patrick, MO
ZIP code 63446	14 mi	Knox City, MO
ZIP code 63543	14 mi	Gorin, 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 63473, plotted from its record coordinates.

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

Scope ZIP code 63473. 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.