ZIP code · Index · Washington · United States
ZIP code 98256 — Index
ZIP code 98256 serves Index, Washington.
- Postal code
- 98256Single source Value from one source, not cross-checked.
- City
- Index
- County
- Snohomish FIPS 53061
- State
- Washington
- Country
- United States
- Coordinates
- 47.8118, -121.5497 — precision precise (locality)
View on OpenStreetMap - Population
- 409 (ZCTA, ACS 5-year)
- Population density
- 5 / sq mi
- Land area
- 75.6 sq mi (195.7 km²) (ZCTA, ACS 5-year)
- Median household income
- $91,406
- Per-capita income
- $35,905
- Median age
- 40.8
- Households
- 163
- Housing units
- 359
- Median home value
- $379,500
- Median gross rent
- $1,283 / month
- Congressional district
- WA-8 (119th Congress)
- USDA hardiness zone
- 8a (10 to 15 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Los_Angeles (UTC−8 / UTC−7 DST)
- Area code
- 360 (from the nearest rate centre)Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 98256 with another ZIP · ZIPs within 25 miles · distance from 98256
Map of ZIP code 98256
Climate — monthly normals
Warmest month Aug (avg high 77°F), coldest Jan (avg low 32°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 42 | 47 | 52 | 59 | 66 | 69 | 77 | 77 | 71 | 58 | 47 | 41 |
| Avg low °F | 32 | 32 | 34 | 38 | 44 | 48 | 52 | 52 | 48 | 42 | 36 | 32 |
| Precip in | 16.7 | 10.6 | 11.9 | 8.3 | 5.0 | 4.0 | 1.7 | 1.9 | 4.8 | 12.3 | 18.1 | 14.6 |
NOAA 1991–2020 climate normals from the nearest station: BARING (4.2 mi) · NOAA NCEI
Places in ZIP 98256
- 2 schools
- 4 restaurants & cafés
- 2 parks
- 1 playgrounds
- 1 post offices
- 1 places of worship
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page