ZIP Code 99012

99012 is one of Washington's ZIP codes, delivering to addresses in Fairfield, Spokane County.

City: Fairfield
County: Spokane County
State: Washington
Prefix: 990xx

Where this code sits

99012 is part of the 990xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Fairfield.

Fairfield Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99012 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99012

The ZIP codes whose reference points sit closest to 99012.
ZIP code	Distance	Delivers to
ZIP code 99039	4.2 mi	Waverly, WA
ZIP code 99030	4.7 mi	Rockford, WA
ZIP code 99018	7.3 mi	Latah, WA
ZIP code 99031	9.2 mi	Spangle, WA
ZIP code 99036	9.7 mi	Valleyford, WA
ZIP code 99023	11 mi	Mica, WA
ZIP code 99033	13 mi	Tekoa, WA
ZIP code 83876	14 mi	Worley, ID

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 99012, plotted from its record coordinates.

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

Scope ZIP code 99012. 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.