86 zips
| Zip Code | City | Population ↓ |
|---|---|---|
| 98052 | Redmond | 79,074 |
| 98115 | Seattle | 54,248 |
| 98133 | Seattle | 52,620 |
| 98003 | Federal Way | 52,210 |
| 98103 | Seattle | 51,988 |
| 98034 | Kirkland | 51,836 |
| 98092 | Auburn | 50,510 |
| 98023 | Federal Way | 49,593 |
| 98118 | Seattle | 49,560 |
| 98105 | Seattle | 49,229 |
| 98042 | Kent | 48,594 |
| 98125 | Seattle | 43,807 |
| 98122 | Seattle | 42,001 |
| 98058 | Renton | 41,980 |
| 98059 | Renton | 41,639 |
| 98031 | Kent | 40,898 |
| 98006 | Bellevue | 40,770 |
| 98033 | Kirkland | 40,662 |
| 98032 | Kent | 40,150 |
| 98198 | Seattle | 39,815 |
| 98004 | Bellevue | 39,435 |
| 98030 | Kent | 38,492 |
| 98038 | Maple Valley | 37,868 |
| 98002 | Auburn | 37,284 |
| 98056 | Renton | 36,872 |
| 98001 | Auburn | 36,041 |
| 98155 | Seattle | 35,906 |
| 98117 | Seattle | 35,147 |
| 98168 | Seattle | 34,814 |
| 98144 | Seattle | 33,048 |
| 98109 | Seattle | 32,552 |
| 98029 | Issaquah | 30,930 |
| 98074 | Sammamish | 30,850 |
| 98106 | Seattle | 28,889 |
| 98107 | Seattle | 28,390 |
| 98027 | Issaquah | 28,335 |
| 98011 | Bothell | 28,250 |
| 98146 | Seattle | 28,182 |
| 98116 | Seattle | 28,091 |
| 98008 | Bellevue | 27,138 |
| 98007 | Bellevue | 26,838 |
| 98188 | Seattle | 26,769 |
| 98102 | Seattle | 26,583 |
| 98119 | Seattle | 26,390 |
| 98178 | Seattle | 25,929 |
| 98040 | Mercer Island | 25,282 |
| 98075 | Sammamish | 25,231 |
| 98072 | Woodinville | 24,922 |
| 98055 | Renton | 24,851 |
| 98108 | Seattle | 24,430 |
| 98112 | Seattle | 23,961 |
| 98028 | Kenmore | 23,594 |
| 98053 | Redmond | 22,838 |
| 98199 | Seattle | 22,751 |
| 98126 | Seattle | 22,433 |
| 98022 | Enumclaw | 22,135 |
| 98166 | Seattle | 22,001 |
| 98005 | Bellevue | 21,929 |
| 98121 | Seattle | 20,904 |
| 98177 | Seattle | 20,506 |
| 98136 | Seattle | 17,299 |
| 98101 | Seattle | 16,396 |
| 98065 | Snoqualmie | 16,061 |
| 98104 | Seattle | 15,870 |
| 98045 | North Bend | 15,705 |
| 98077 | Woodinville | 14,407 |
| 98057 | Renton | 12,151 |
| 98019 | Duvall | 11,712 |
| 98070 | Vashon | 10,424 |
| 98148 | Seattle | 10,399 |
| 98014 | Carnation | 7,681 |
| 98047 | Pacific | 6,900 |
| 98010 | Black Diamond | 6,351 |
| 98024 | Fall City | 4,632 |
| 98051 | Ravensdale | 3,555 |
| 98039 | Medina | 2,889 |
| 98195 | Seattle | 2,471 |
| 98134 | Seattle | 779 |
| 98164 | Seattle | 235 |
| 98288 | Skykomish | 201 |
| 98224 | Baring | 192 |
| 98050 | Preston | 87 |
| 98025 | Hobart | 51 |
| 98174 | Seattle | 0 |
| 98158 | Seattle | 0 |
| 98154 | Seattle | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 86 ZCTAs in King County, Washington (US Census).