Fairfield Washington ZIP Codes
Fairfield holds a single ZIP code.
Every ZIP code in Fairfield
| ZIP code | County |
|---|---|
| 99012 | Spokane County |
We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Fairfield codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Fairfield. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.
How these codes cluster
Every Fairfield ZIP code begins 990. Those first three digits identify the sectional center facility that processes mail for this part of Washington. Statewide that range covers 32 ZIP codes, so Fairfield accounts for 3% of it.
Every Washington ZIP prefix and the region it covers →
Area codes covering Fairfield
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Fairfield occupies.
Fairfield Washington area codes in full →
Where Fairfield's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Fairfield
| City | Distance | ZIP codes |
|---|---|---|
| Waverly Washington ZIP codes | 4.2 mi | 1 ZIP code |
| Rockford Washington ZIP codes | 5.1 mi | 1 ZIP code |
| Latah Washington ZIP codes | 7.1 mi | 1 ZIP code |
| Spangle Washington ZIP codes | 10 mi | 1 ZIP code |
| Tekoa Washington ZIP codes | 12 mi | 1 ZIP code |
| Rosalia Washington ZIP codes | 14 mi | 1 ZIP code |
| Malden Washington ZIP codes | 18 mi | 1 ZIP code |
| Oakesdale Washington ZIP codes | 18 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.