Posted by Cary W Porter on Tuesday, March 26th, 2019 10:05am.
Looking at this following list there is also a definite correlation between the wealthiest zip codes and the highest housing prices as well. Feel free to use our advanced search function here and check out any of the zip codes yourself!
Using IRS data, we were able to get a snapshot of how much money people from Washington state earned in 2016, the most recent year they have numbers for. And of the top 20 wealthiest zip codes in the state, all 20 have an average income of more than $130,000.
The average income is calculated as an average of all the tax returns from each zip code.
While zip codes can often cover more than one locale, this (and last) year's two highest slots go to neighborhoods that occupy the entirety of their zip codes -- and they're not exactly surprises: Mercer Island and Medina.
The top 20 wealthiest zip codes in King County by income levels: (Listed in reverse order)
20. 98072
19. 98065
18. 98052
17. 98005
16. 98177
15. 98121
14. 98199
13. 98110
12. 98006
11. 98053
10. 98101
9. 98033
8. 98077
7. 98074
6. 98075
5. 98112
4. 98164
3. 98004
2. 98040
1. 98039