Index ZIP code, Washington
The ZIP code for Index, WA is 98256, and its area code is 360.
- USPS city name
- 1 ZIP code
- Population
- 173
- Area code
- 360
- County
- Snohomish County
- State
- Washington
NANPA lists no telephone rate centre for Index itself, so these are the area codes of the nearest one, Skykomish (14.3 miles). A town on an area-code boundary can differ from its neighbour.
ZIP codes addressed as Index
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
98256 | Index , WA | Standard | 368 | $94,375 | $430,000 |
Map of Index ZIP codes
The ZIP codes of Index, WA, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Index
The nearest larger towns are Baring (177 people, 5.0 mi), May Creek (791 people, 6.0 mi) and Gold Bar (2,390 people, 6.8 mi).
| Town | Population | Distance |
|---|---|---|
| Sultan | 6,116 | 12.0 mi |
| Woods Creek | 6,943 | 16.5 mi |
| Monroe | 19,755 | 20.0 mi |
| Duvall | 8,526 | 20.2 mi |
| Chain Lake | 4,950 | 20.8 mi |
| Three Lakes | 4,055 | 21.7 mi |
| High Bridge | 3,196 | 21.8 mi |
| Union Hill-Novelty Hill | 23,047 | 23.7 mi |
| Snoqualmie | 13,798 | 24.1 mi |
| Cottage Lake | 22,518 | 24.7 mi |
| North Bend | 7,953 | 25.1 mi |
| Maltby | 10,910 | 25.6 mi |
| Snohomish | 10,239 | 26.0 mi |
| Granite Falls | 4,659 | 26.6 mi |
More nearby: every ZIP code in Snohomish County · Washington ZIP codes
Cite this page
zipcodes.pro. “Index, WA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wa/index
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