ZIP Code 65606

65606 is one of Missouri's ZIP codes, delivering to addresses in Alton, Oregon County.

City: Alton
County: Oregon County
State: Missouri
Prefix: 656xx

Where this code sits

65606 is part of the 656xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Alton.

Alton Missouri ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 65606 delivers to without sharing its boundary.

417 Area code 417

ZIP codes nearest 65606

The ZIP codes whose reference points sit closest to 65606.
ZIP code	Distance	Delivers to
ZIP code 65690	10 mi	Couch, MO
ZIP code 65791	14 mi	Thayer, MO
ZIP code 65778	14 mi	Myrtle, MO
ZIP code 65692	14 mi	Koshkonong, MO
ZIP code 65688	17 mi	Brandsville, MO
ZIP code 65788	18 mi	Peace Valley, MO
ZIP code 65438	19 mi	Birch Tree, MO
ZIP code 63942	20 mi	Gatewood, 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 65606, plotted from its record coordinates.

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

Scope ZIP code 65606. 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.