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County ZIP codes · Washington · FIPS 53055

San Juan County, WA ZIP Codes

San Juan County, Washington has 10 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 9 of the residential ones lie mainly in San Juan County and 1 mainly in a neighboring county; 1 cross the county line. Median household income ranges from $80,119 in 98261 (Lopez Island) to $96,528 in 98221 (Anacortes) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of San Juan County?

98221 · Anacortes: $97k98222 · Blakely Island: $106k98243 · Deer Harbor: $139k98245 · Eastsound: $96k98250 · Friday Harbor: $89k98261 · Lopez Island: $80k98279 · Olga: $70k98280 · Orcas: $80k98286 · Shaw Island: $74k98297 · Waldron: $46k9822198250982459826198279982869824398280982229829798221 · Anacortes: $97k98222 · Blakely Island: $106k98243 · Deer Harbor: $139k98245 · Eastsound: $96k98250 · Friday Harbor: $89k98261 · Lopez Island: $80k98279 · Olga: $70k98280 · Orcas: $80k98286 · Shaw Island: $74k98297 · Waldron: $46k9822198250982459826198279982869824398280982229829798221 · Anacortes: $97k98222 · Blakely Island: $106k98243 · Deer Harbor: $139k98245 · Eastsound: $96k98250 · Friday Harbor: $89k98261 · Lopez Island: $80k98279 · Olga: $70k98280 · Orcas: $80k98286 · Shaw Island: $74k98297 · Waldron: $46k98221982509824598261982799828698243
The residential ZIP codes of San Juan 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 $80,119 and $95,811.

They carry 10 postal town names.

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

All 10 residential ZIP codes in San Juan County

9 ZIP codes lie mainly in San Juan County; 1 more reaches into it from a neighboring county and follows the first table.

Residential ZIP codes mainly in San Juan County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
98250 Friday Harbor 9,254 151 $89k $801k 100%
98245 Eastsound 4,265 120 $96k $773k 100%
98261 Lopez Island 2,984 100 $80k $788k 100%
98279 Olga 680 50 $70k $938k 100%
98280 Orcas 442 71 $80k $1.03M 100%
98243 Deer Harbor 327 108 $139k $1.09M 100%
98286 Shaw Island 155 20 $74k $675k 100%
98222 Blakely Island 121 18 $106k $802k 100%
98297 Waldron 47 10 $46k $406k 100%

Partly in San Juan County

Residential ZIP codes mainly in another county that reach at least 1% into San Juan County, by their share here
In this county
98221 Anacortes 23,562 454 $97k $713k 8%

Download the 10 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 San Juan County extends into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in San Juan County and in the neighboring counties
ZIPIn San JuanElsewhere
982218%Skagit County 92%

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

Which first three digits do San Juan 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 San Juan County starts with 982.

Three-digit prefixes of San Juan 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 San Juan County's
PrefixSectional centerHereAll codes
982 Seattle, WA (SCF 980) 10 76

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