Index Washington ZIP Codes
Index holds a single ZIP code.
Every ZIP code in Index
| ZIP code | County |
|---|---|
| 98256 | Snohomish 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We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP.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 Index codes above are listed without a column we would have to invent.
Scope every ZIP code recorded for Index. 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 Index ZIP code begins 982. Those first three digits identify the sectional center facility that processes mail for this part of Washington. Statewide that range covers 76 ZIP codes, so Index accounts for 1% of it.
Every Washington ZIP prefix and the region it covers →
Area codes covering Index
ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The codes below serve the same ground Index occupies.
Index Washington area codes in full →
Where Index's ZIP codes sit
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Cities near Index
| City | Distance | ZIP codes |
|---|---|---|
| Gold Bar Washington ZIP codes | 6.8 mi | 1 ZIP code |
| Sultan Washington ZIP codes | 12 mi | 1 ZIP code |
| Skykomish Washington ZIP codes | 12 mi | 1 ZIP code |
| Monroe Washington ZIP codes | 20 mi | 1 ZIP code |
| Carnation Washington ZIP codes | 20 mi | 1 ZIP code |
| Duvall Washington ZIP codes | 20 mi | 1 ZIP code |
| Snoqualmie Washington ZIP codes | 24 mi | 1 ZIP code |
| North Bend Washington ZIP codes | 25 mi | 1 ZIP code |
Straight-line distance between place reference points, not driving distance.