ZIP Code 63534

63534 is one of Missouri's ZIP codes, delivering to addresses in Callao, Macon County.

City: Callao
County: Macon County
State: Missouri
Prefix: 635xx

Where this code sits

63534 is part of the 635xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Callao.

Callao Missouri ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 63534 delivers to without sharing its boundary.

660 Area code 660

ZIP codes nearest 63534

The ZIP codes whose reference points sit closest to 63534.
ZIP code	Distance	Delivers to
ZIP code 63532	3.9 mi	Bevier, MO
ZIP code 63558	7.2 mi	New Cambria, MO
ZIP code 63552	9.2 mi	Macon, MO
ZIP code 65247	11 mi	Excello, MO
ZIP code 63538	14 mi	Elmer, MO
ZIP code 63539	14 mi	Ethel, MO
ZIP code 64631	14 mi	Bucklin, MO
ZIP code 63530	15 mi	Atlanta, 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 63534, plotted from its record coordinates.

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

Scope ZIP code 63534. 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.