ZIP Code 64491

64491 is one of Missouri's ZIP codes, delivering to addresses in Tarkio, Atchison County.

City: Tarkio
County: Atchison County
State: Missouri
Prefix: 644xx

Where this code sits

64491 is part of the 644xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Tarkio.

Tarkio Missouri ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 64491 delivers to without sharing its boundary.

660 Area code 660

ZIP codes nearest 64491

The ZIP codes whose reference points sit closest to 64491.
ZIP code	Distance	Delivers to
ZIP code 64498	7.3 mi	Westboro, MO
ZIP code 64446	7.7 mi	Fairfax, MO
ZIP code 64482	7.9 mi	Rock Port, MO
ZIP code 51647	12 mi	Northboro, IA
ZIP code 64496	13 mi	Watson, MO
ZIP code 64445	14 mi	Elmo, MO
ZIP code 51630	15 mi	Blanchard, IA
ZIP code 64428	17 mi	Burlington Junction, 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 64491, plotted from its record coordinates.

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

Scope ZIP code 64491. 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.