ZIP Code 64631

64631 is one of Missouri's ZIP codes, delivering to addresses in Bucklin, Linn County.

City: Bucklin
County: Linn County
State: Missouri
Prefix: 646xx

Where this code sits

64631 is part of the 646xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Bucklin.

Bucklin Missouri ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 64631 delivers to without sharing its boundary.

660 Area code 660

ZIP codes nearest 64631

The ZIP codes whose reference points sit closest to 64631.
ZIP code	Distance	Delivers to
ZIP code 64658	6.7 mi	Marceline, MO
ZIP code 63558	7.3 mi	New Cambria, MO
ZIP code 63557	9.2 mi	New Boston, MO
ZIP code 64628	9.6 mi	Brookfield, MO
ZIP code 63539	10 mi	Ethel, MO
ZIP code 64676	13 mi	Rothville, MO
ZIP code 63534	14 mi	Callao, MO
ZIP code 64651	15 mi	Laclede, 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 64631, plotted from its record coordinates.

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

Scope ZIP code 64631. 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.