Zip Code 98270 — Marysville, WA
98270 is a ZIP Code associated with Marysville, WA, located within Snohomish. 98270 ranks #3 out of 27 ZIP codes in Snohomish County by population (and #8 out of 605 in WA). The area supports an estimated population of 55,049 residents across Data Pending housing units, with a population density of 1,490.4 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (48.059520, -122.144300)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 98270 |
| Primary City | Marysville |
| State / Province | WA |
| County | Snohomish |
| Total Population | 55,049 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 1,490.4 people/sq mi |
| Timezone | America/Los_Angeles |
How 98270 Compares
| Metric | ZIP 98270 | Snohomish County | WA State Average |
|---|
| Population | 55,049 | 841,433 (Total) | 7,816,021 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 1,490.4 /sq mi | -- | -- |
| County Pop Rank | #3 of 27 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →