ZIP Code 99123

99123 is one of Washington's ZIP codes, delivering to addresses in Electric City, Grant County.

City: Electric City
County: Grant County
State: Washington
Prefix: 991xx

Where this code sits

99123 is part of the 991xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Electric City.

Electric City Washington ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 99123 delivers to without sharing its boundary.

509 Area code 509

ZIP codes nearest 99123

The ZIP codes whose reference points sit closest to 99123.
ZIP code	Distance	Delivers to
ZIP code 99133	2.7 mi	Grand Coulee, WA
ZIP code 99124	7.1 mi	Elmer City, WA
ZIP code 99116	9.8 mi	Coulee Dam, WA
ZIP code 99103	12 mi	Almira, WA
ZIP code 99155	16 mi	Nespelem, WA
ZIP code 98830	17 mi	Mansfield, WA
ZIP code 99140	20 mi	Keller, WA
ZIP code 99185	20 mi	Wilbur, WA

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 99123, plotted from its record coordinates.

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

Scope ZIP code 99123. 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.