ZIP Code 64646

64646 is one of Missouri's ZIP codes, delivering to addresses in Humphreys, Sullivan County.

City: Humphreys
County: Sullivan County
State: Missouri
Prefix: 646xx

Where this code sits

64646 is part of the 646xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Humphreys.

Humphreys Missouri ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 64646 delivers to without sharing its boundary.

660 Area code 660

ZIP codes nearest 64646

The ZIP codes whose reference points sit closest to 64646.
ZIP code	Distance	Delivers to
ZIP code 64641	5.4 mi	Galt, MO
ZIP code 64630	9.5 mi	Browning, MO
ZIP code 63556	10 mi	Milan, MO
ZIP code 64652	10 mi	Laredo, MO
ZIP code 64674	13 mi	Purdin, MO
ZIP code 64645	14 mi	Harris, MO
ZIP code 64653	15 mi	Linneus, MO
ZIP code 64683	16 mi	Trenton, 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 64646, plotted from its record coordinates.

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

Scope ZIP code 64646. 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.