ZIP Code 63674

63674 is one of Missouri's ZIP codes, delivering to addresses in Tiff, Washington County.

City: Tiff
County: Washington County
State: Missouri
Prefix: 636xx

Where this code sits

63674 is part of the 636xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Tiff.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 63674 delivers to without sharing its boundary.

ZIP codes nearest 63674

The ZIP codes whose reference points sit closest to 63674.
ZIP code	Distance	Delivers to
ZIP code 63626	2.8 mi	Blackwell, MO
ZIP code 63630	5.0 mi	Cadet, MO
ZIP code 63660	8.0 mi	Mineral Point, MO
ZIP code 63628	8.5 mi	Bonne Terre, MO
ZIP code 63020	8.8 mi	De Soto, MO
ZIP code 63030	11 mi	Fletcher, MO
ZIP code 63664	11 mi	Potosi, MO
ZIP code 63087	12 mi	Valles Mines, 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 63674, plotted from its record coordinates.

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

Scope ZIP code 63674. 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.