ZIP Code 64620

64620 is one of Missouri's ZIP codes, delivering to addresses in Altamont, Daviess County.

City: Altamont
County: Daviess County
State: Missouri
Prefix: 646xx

Where this code sits

64620 is part of the 646xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Altamont.

Altamont Missouri ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 64620 delivers to without sharing its boundary.

660 Area code 660

ZIP codes nearest 64620

The ZIP codes whose reference points sit closest to 64620.
ZIP code	Distance	Delivers to
ZIP code 64689	4.5 mi	Winston, MO
ZIP code 64640	5.9 mi	Gallatin, MO
ZIP code 64649	8.0 mi	Kidder, MO
ZIP code 64497	8.4 mi	Weatherby, MO
ZIP code 64647	10 mi	Jameson, MO
ZIP code 64670	10 mi	Pattonsburg, MO
ZIP code 64644	12 mi	Hamilton, MO
ZIP code 64429	14 mi	Cameron, 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 64620, plotted from its record coordinates.

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

Scope ZIP code 64620. 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.