ZIP Code 89403

89403 is one of Nevada's ZIP codes, delivering to addresses in Dayton, Lyon County.

City: Dayton
County: Lyon County
State: Nevada
Prefix: 894xx

Where this code sits

89403 is part of the 894xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Dayton.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 89403 delivers to without sharing its boundary.

775 Area code 775

ZIP codes nearest 89403

The ZIP codes whose reference points sit closest to 89403.
ZIP code	Distance	Delivers to
ZIP code 89428	6.0 mi	Silver City, NV
ZIP code 89440	7.0 mi	Virginia City, NV
ZIP code 89521	11 mi	Reno, NV
ZIP code 89706	13 mi	Carson City, NV
ZIP code 89701	15 mi	Carson City, NV
ZIP code 89703	15 mi	Carson City, NV
ZIP code 89711	15 mi	Carson City, NV
ZIP code 89712	15 mi	Carson City, NV

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 89403, plotted from its record coordinates.

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

Scope ZIP code 89403. 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.