ZIP Code 64661

64661 is one of Missouri's ZIP codes, delivering to addresses in Mercer, Mercer County.

City: Mercer
County: Mercer County
State: Missouri
Prefix: 646xx

Where this code sits

64661 is part of the 646xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Mercer.

Mercer Missouri ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 64661 delivers to without sharing its boundary.

660 Area code 660

ZIP codes nearest 64661

The ZIP codes whose reference points sit closest to 64661.
ZIP code	Distance	Delivers to
ZIP code 50147	6.1 mi	Lineville, IA
ZIP code 50052	9.0 mi	Clio, IA
ZIP code 64673	9.5 mi	Princeton, MO
ZIP code 64672	12 mi	Powersville, MO
ZIP code 64632	13 mi	Cainsville, MO
ZIP code 64655	14 mi	Lucerne, MO
ZIP code 50008	15 mi	Allerton, IA
ZIP code 64667	16 mi	Newtown, 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 64661, plotted from its record coordinates.

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

Scope ZIP code 64661. 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.