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

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — RANKINGS/WA/HIGHEST-MEDIAN-INCOME

ZIP Codes With the Highest Median Household Income in Washington

What this measures. Median household income, American Community Survey 5-year estimate. Source: Census American Community Survey, data release 2026-10-12.

# ZIP City County Median household income
1 98039 Medina King $250,000+
2 98075 Sammamish King $250,000+
3 98164 Seattle King $250,000+
4 98940 Ronald Kittitas $246,441
5 98074 Sammamish King $244,362
6 98040 Mercer Island King $219,069
7 98065 Snoqualmie King $198,216
8 98006 Bellevue King $198,150
9 98053 Redmond King $192,292
10 98008 Bellevue King $184,583
11 98314 Bremerton Kitsap $184,417
12 98077 Woodinville King $184,306
13 98021 Bothell Snohomish $183,786
14 98117 Seattle King $182,984
15 98004 Bellevue King $182,545
16 98033 Kirkland King $182,500
17 98199 Seattle King $180,789
18 98296 Snohomish Snohomish $177,583
19 98072 Woodinville King $175,805
20 98045 North Bend King $175,765
21 98333 Fox Island Pierce $172,292
22 98110 Bainbridge Island Kitsap $172,188
23 98112 Seattle King $171,572
24 98029 Issaquah King $170,759
25 98177 Seattle King $169,918
26 98014 Carnation King $164,306
27 98052 Redmond King $163,460
28 98019 Duvall King $161,212
29 98005 Bellevue King $160,849
30 98024 Fall City King $160,641
31 98115 Seattle King $156,142
32 98027 Issaquah King $153,301
33 98385 South Prairie Pierce $152,500
34 98038 Maple Valley King $152,261
35 98121 Seattle King $152,019
36 98351 Longbranch Pierce $151,660
37 98136 Seattle King $149,269
38 98012 Bothell Snohomish $146,144
39 98107 Seattle King $142,662
40 98010 Black Diamond King $142,048
41 99330 Eltopia Franklin $140,093
42 98028 Kenmore King $139,764
43 98243 Deer Harbor San Juan $139,167
44 98059 Renton King $138,654
45 98592 Union Mason $138,370
46 98051 Ravensdale King $136,439
47 98332 Gig Harbor Pierce $135,330
48 98034 Kirkland King $135,219
49 98391 Bonney Lake Pierce $135,037
50 98821 Dryden Chelan $134,233

Showing the top 50 of 549 ZIP codes in Washington that have this figure . 98039 ranks 1st at $250,000+, against $134,233 in 50th place.

Other rankings for Washington

Cite this page

zipcodes.pro. “ZIP Codes With the Highest Median Household Income in Washington.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/rankings/wa/highest-median-income

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