Richest ZIP Codes in Washington

Top ZIP codes in Washington ranked by median household income

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Wealth in America varies dramatically by ZIP code. The richest ZIP codes often cluster around major metropolitan areas, coastal communities, and affluent suburbs. These neighborhoods typically feature high educational attainment, strong property values, and diverse professional economies.

This ranking uses median household income from the U.S. Census Bureau's American Community Survey (ACS) to identify the highest-earning ZIP codes. Median income is preferred over mean income because it represents the typical household without being skewed by extreme outliers.

#1 ranked: 98923 (Cowiche, WA) with a median household income of $47,776 and a population of 994.

Rank ZIP Code City State Median Income Population Home Value
501 98923 Cowiche WA $47,776 994 $243,600
502 98852 Stehekin WA $47,750 44 $537,500
503 98552 Humptulips WA $47,396 140 N/A
504 98326 Clallam Bay WA $46,500 1,207 $266,100
505 98938 Outlook WA $46,022 1,591 $219,900
506 98297 Waldron WA $45,625 47 $405,600
507 98844 Oroville WA $44,201 4,873 $293,800
508 99153 Metaline Falls WA $44,000 467 $282,400
509 99157 Northport WA $43,650 605 $232,600
510 98827 Loomis WA $43,309 289 N/A
511 98581 Ryderwood WA $43,009 419 $232,500
512 98547 Grayland WA $42,400 1,080 $215,200
513 98673 Wishram WA $42,188 411 $162,000
514 99134 Harrington WA $41,774 595 $285,200
515 99401 Anatone WA $41,438 163 $322,500
516 99201 Spokane WA $41,171 15,829 $312,600
517 99129 Fruitland WA $40,938 725 $220,000
518 98533 Cinebar WA $39,208 890 $476,500
519 99143 Lacrosse WA $38,214 585 $123,600
520 98829 Malott WA $36,875 361 $392,000
521 99131 Gifford WA $35,391 127 $245,800
522 98832 Marlin WA $31,964 87 $309,100
523 98421 Tacoma WA $26,307 424 N/A
524 99149 Malden WA $26,250 100 $49,500

Explore Other Rankings

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Frequently Asked Questions

The richest ZIP code is 98923 in Cowiche, WA with a median household income of $47,776.
ZIP code wealth is measured by median household income from the U.S. Census Bureau American Community Survey (ACS) 5-year estimates. Median income represents the midpoint where half of households earn more and half earn less.
States like Connecticut, New Jersey, California, and Massachusetts tend to have the most ZIP codes in the top income brackets, with affluent suburbs and coastal communities driving the numbers.