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County ZIP codes · Washington · FIPS 53029

Island County, WA ZIP Codes

Island County, Washington has 8 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 1 of the residential ones extends into a neighboring county. Median household income ranges from $83,253 in 98277 (Oak Harbor) to $105,231 in 98282 (Camano Island) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Island County?

98236 · Clinton: $94k98239 · Coupeville: $92k98249 · Freeland: $100k98253 · Greenbank: $71k98260 · Langley: $102k98277 · Oak Harbor: $83k98278 · Oak Harbor: –98282 · Camano Island: $105k982779828298239982609824998236982539827898236 · Clinton: $94k98239 · Coupeville: $92k98249 · Freeland: $100k98253 · Greenbank: $71k98260 · Langley: $102k98277 · Oak Harbor: $83k98278 · Oak Harbor: –98282 · Camano Island: $105k982779828298239982609824998236982539827898236 · Clinton: $94k98239 · Coupeville: $92k98249 · Freeland: $100k98253 · Greenbank: $71k98260 · Langley: $102k98277 · Oak Harbor: $83k98278 · Oak Harbor: –98282 · Camano Island: $105k982779828298239982609824998236
The residential ZIP codes of Island County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024).<$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $92,125 and $99,519.

They carry 7 postal town names: Oak Harbor, Camano Island, Coupeville, Clinton, Langley, Freeland, Greenbank.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 8 residential ZIP codes in Island County

Residential ZIP codes mainly in Island County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
98277 Oak Harbor 40,917 715 $83k $500k 100%
98282 Camano Island 17,303 429 $105k $671k 99%
98239 Coupeville 7,656 247 $92k $594k 100%
98236 Clinton 7,199 313 $94k $668k 100%
98260 Langley 5,320 203 $102k $678k 100%
98249 Freeland 4,198 264 $100k $627k 100%
98253 Greenbank 2,311 211 $71k $790k 100%
98278 Oak Harbor 1,932 458 – – 100%

Download the 8 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

1 ZIP code of Island County extends into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Island County and in the neighboring counties
ZIPIn IslandElsewhere
9828299%Snohomish County1%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

Which first three digits do Island County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Island County starts with 982.

Three-digit prefixes of Island County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Island County's
PrefixSectional centerHereAll codes
982Seattle, WA (SCF 980)876

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.