Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — CITY/WA/HAMILTON

Hamilton ZIP code, Washington

The ZIP code for Hamilton, WA is 98255, and its area codes are 360 and 564.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
252
Area codes
360, 564

NANPA lists no telephone rate centre for Hamilton itself, so these are the area codes of the nearest one, Mount Vernon (14.0 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Hamilton uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

Hamilton in numbers

About 252 people live in Hamilton, in 130 households. The median household income is $67,500 a year, 31% below the Washington median of $98,141 (US: $80,734). The median owner-occupied home is valued at $237,000 (58% below the Washington median). The median age is 46.1; 8.4% of adults 25 and over hold a bachelor's degree or higher (39.6% across Washington); the average commute takes 25 minutes.

Population252Hamilton252
Households130Hamilton130
Median age46.1Hamilton46.1Washington38.3US 38.9
Median household income$67,500Hamilton$67,500Washington$98,141US $80,734
Median home value$237,000Hamilton$237,000Washington$564,600US $332,700
Bachelor's degree or higher8.4%Hamilton8.4%Washington39.6%US 35.7%
Mean commute25.2 minHamilton25.2 minWashington26.6 minUS 26.4 min
Population density211 / sq miHamilton211 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Hamilton town. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Hamilton

ZIP codes with the USPS city name Hamilton
ZIP City Type Population Median income Median home
98255 Hamilton , WA Standard 198 $68,194 $217,500

Other ZIP codes overlapping Hamilton

These ZIP codes cover part of Hamilton but are addressed as somewhere else.

ZIP codes overlapping Hamilton
ZIP City Type Population Median income Median home
98284 Sedro Woolley , WA Standard 27,835 $93,006 $482,500

Map of Hamilton ZIP codes

98255

The ZIP codes of Hamilton, 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 Hamilton

The nearest larger towns are Lyman (437 people, 3.2 mi), Sedro-Woolley (12,831 people, 11 mi) and Concrete (833 people, 11 mi).

Towns near Hamilton
TownPopulationDistance
Sedro-Woolley 12,831 10.9 mi
Burlington 10,003 15.8 mi
Mount Vernon 35,377 16.2 mi
Bryant 2,648 20.8 mi
Sudden Valley 6,084 21.1 mi
Arlington Heights 2,727 21.7 mi
Stanwood 8,373 24.9 mi
Arlington 21,095 25.3 mi
Bellingham 93,438 26.9 mi
Sisco Heights 3,015 28.5 mi
Canyon Creek 3,910 28.5 mi
Anacortes 17,966 28.9 mi
Warm Beach 3,442 29.5 mi
Lake Goodwin 5,536 29.7 mi

More nearby: every ZIP code in Skagit County · Washington ZIP codes

Cite this page

zipcodes.pro. “Hamilton, WA ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/wa/hamilton

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