King County, WA Data Centers & Crypto Mining: Data Center Zoning & Siting (2026)
Where data centers may be built, including the zoning districts that allow them, conditional-use-permit requirements, residential setback and buffer distances, and lot-size or acreage minimums.
Research in progress
We are currently verifying King County's specific local ordinance for data center zoning & siting. In the meantime,Washingtonstate law generally applies, and below you'll find guidance for finding the official rules and links to related King Countyordinances we've already verified.
Washington State Law Context
Washington state law provides the baseline framework for data center zoning & siting across all municipalities in the state. Individual cities like King County may adopt additional local rules on top of state requirements, which is what makes checking your specific city ordinance important. For King County residents, the safest approach is to follow state law as a baseline and contact City Hall for any additional local requirements.
You can browse all Washington data centers & crypto mining to see how cities across the state regulate this topic.
How to find official King County Data Center Zoning & Siting rules
- Search for "King County WAmunicipal code" to find your city's online code portal (Municode, eCode360, or American Legal Publishing are the most common).
- Look for chapters covering data centers & crypto mining, zoning, nuisance, or property maintenance — that's where most data center zoning & siting rules live.
- Contact King CountyCity Hall's code enforcement, planning, or community development department for clarification.
- Check with your HOA if applicable — many HOAs have stricter rules than the city itself.