Which ZIP code in King County has the highest median household income?

98075 (Sammamish), at $250,000+, among 77 ZIP codes with at least 1,000 residents.

Why are some ZIP codes missing?

ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

Richest ZIP codes in King County, WA

These are the 25 ZIP codes in King County with the highest median household income, out of 77 with at least 1,000 residents. 98075 (Sammamish, $250,000+), 98039 (Medina, $250,000+) and 98074 (Sammamish, $244,362) lead the list. There is no single "best" ZIP code in King County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.

Richest ZIP codes in King County

Rank	ZIP	Mailing city	Median household income	Residents	Households	Residential mailboxes
1	98075	Sammamish	$250,000+	25,498	8,158	8,615
2	98039	Medina	$250,000+	2,928	1,010	1,085
3	98074	Sammamish	$244,362 ±$17,415	30,761	10,272	10,464
4	98040	Mercer Island	$219,069 ±$17,476	25,307	10,068	10,365
5	98065	Snoqualmie	$198,216 ±$27,221	15,944	5,445	5,264
6	98006	Bellevue	$198,150 ±$13,369	40,009	14,084	14,714
7	98053	Redmond	$192,292 ±$22,928	22,765	8,327	8,407
8	98008	Bellevue	$184,583 ±$13,613	27,242	9,431	9,729
9	98077	Woodinville	$184,306 ±$30,271	14,109	4,743	4,639
10	98117	Seattle	$182,984 ±$11,504	35,711	14,983	16,086
11	98004	Bellevue	$182,545 ±$11,073	39,897	19,515	21,362
12	98033	Kirkland	$182,500 ±$14,299	40,982	17,400	19,828
13	98199	Seattle	$180,789 ±$10,352	22,468	10,052	9,948
14	98072	Woodinville	$175,805 ±$14,164	24,446	9,487	10,755
15	98045	North Bend	$175,765 ±$12,665	15,289	5,514	6,579
16	98112	Seattle	$171,572 ±$9,507	23,921	10,918	11,456
17	98029	Issaquah	$170,759 ±$19,816	30,586	12,115	12,665
18	98177	Seattle	$169,918 ±$11,416	21,090	8,134	8,181
19	98014	Carnation	$164,306 ±$24,548	8,264	2,869	2,508
20	98052	Redmond	$163,460 ±$9,588	80,717	34,177	37,646
21	98019	Duvall	$161,212 ±$29,869	12,242	4,155	4,570
22	98005	Bellevue	$160,849 ±$15,567	21,846	9,097	10,964
23	98024	Fall City	$160,641 ±$25,056	3,908	1,674	1,598
24	98115	Seattle	$156,142 ±$10,611	54,349	23,843	26,226
25	98027	Issaquah	$153,301 ±$15,802	28,955	11,804	12,423

How we ranked them

Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population. ZIP codes need at least 1,000 residents to be ranked; 77 of 88 qualify.

Which of these to mail, and why

Higher-income ZIP codes suit offers with a bigger ticket: remodeling, pools, roofing, financial planning, private schools, premium dining. A median describes the middle household, not every door, so the routes inside each ZIP still vary.

The top five ZIP codes on this list hold 34,953 households, on 60 carrier routes with 35,793 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.

Open 98075 on the EDDM route map

More rankings

Businesses that mail these ZIP codes

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Frequently asked questions

Which ZIP code in King County has the highest median household income?: 98075 (Sammamish), at $250,000+, among 77 ZIP codes with at least 1,000 residents.
How is this ranking calculated?: Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population.
Why are some ZIP codes missing?: ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.