Data Centers & Crypto Mining in Mason County, WA (2026)
1 rule for unincorporated Mason County, Washington.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Mason County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Data Center Zoning & Siting
Mason County treats data centers as a straight permitted use in its two Shelton urban growth area industrial-type zones. The Commercial-Industrial (CI) district's use list names data centers, server farms at Mason County Code § 17.07.420(Q), and the Industrial (I) district separately lists data centers among its permitted uses at § 17.07.630(A)(7), with no special use permit required for either.
Data Center Zoning in Mason County, WA
Few RestrictionsMason County Code §§ 17.07.420(Q), 17.07.630(A)(7)
P.Warehouse and wholesale establishments, excluding the storage of explosive and other dangerous or toxic substances as defined in RCW 70.105.Q.Data centers, server farms;R.Self-storage facilities; ... 6.Value-added forest products;7.Data centers;8.Public utilities and facilities (buildings);9.Advanced materials;10.Research and development;
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