Endicott Washington ZIP Codes
Endicott holds a single ZIP code.
Every ZIP code in Endicott
| ZIP code | County |
|---|---|
| 99125 | Whitman 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Endicott codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Endicott. 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 Endicott ZIP code begins 991. Those first three digits identify the sectional center facility that processes mail for this part of Washington. Statewide that range covers 67 ZIP codes, so Endicott accounts for 1% of it.
Every Washington ZIP prefix and the region it covers →
Area codes covering Endicott
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 Endicott occupies.
Endicott Washington area codes in full →
Where Endicott's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Endicott
| City | Distance | ZIP codes |
|---|---|---|
| Lacrosse Washington ZIP codes | 14 mi | 1 ZIP code |
| Colfax Washington ZIP codes | 18 mi | 1 ZIP code |
| Lamont Washington ZIP codes | 21 mi | 1 ZIP code |
| Albion Washington ZIP codes | 23 mi | 1 ZIP code |
| Malden Washington ZIP codes | 23 mi | 1 ZIP code |
| Oakesdale Washington ZIP codes | 25 mi | 1 ZIP code |
| Rosalia Washington ZIP codes | 26 mi | 1 ZIP code |
| Garfield Washington ZIP codes | 26 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.