Lake County, CA Data Centers & Crypto Mining: Data Center Zoning & Siting (2026)
Key Facts
- Dedicated Ordinance
- None; industrial zoning
- Allowed Districts
- MP, M1, M2 industrial
- Large Facilities
- Major Use Permit + CEQA
- M1/M2 Parcel Cap
- Five acres maximum
- Jurisdiction
- Unincorporated county only
Summary
Lake County has no dedicated data center ordinance. In the unincorporated Clear Lake region a data center is treated as a high-technology or computer use, allowed in the MP Industrial Park, M1, and M2 industrial districts. A full-scale facility needs a Minor or Major Use Permit plus CEQA review.
High technology products such as electrical instruments, computers, optical equipment and similar uses, including research and development.
2. Grains, vegetables, fruit or other farm products;
3. Wood, paper, or paper products;
4. Fabrics, textiles, and similar materials;
5. Leather and leather products;
6. Metals and alloys;
7. Glass, plastics, pottery and rubber products.
(c) Laundry, janitorial or facility maintenance services.
Full Breakdown
Unincorporated Lake County regulates data centers only through general industrial zoning, not a data-center-specific rule. Under the Zoning Ordinance a computing facility is a high-technology or computer use, permitted in the Industrial Park (MP, Article 23), Commercial/Manufacturing (M1, Article 21), and Heavy Industrial (M2, Article 22) districts. The M1 and M2 districts apply only to parcels up to five acres; MP is intended for larger business-park sites served by public water and sewer. Uses under 6,000 square feet are allowed by right through development review (Article 56); above 12,000 square feet they need a Minor Use Permit, and a large or non-enclosed facility needs a Major Use Permit, which triggers CEQA review of water, power, traffic, and noise.
Violations & Fines
Building a data center outside an MP, M1, or M2 district, or without a required Minor or Major Use Permit and CEQA clearance, is a zoning violation.
Frequently Asked Questions
Where can a data center be built in unincorporated Lake County?
Does county zoning apply inside Lakeport or Clearlake?
Does Lake County have data center rules, and how can I weigh in?
Sources & Official References
Other rules in Lake County
California rules heatmap·Compare Lake County to another location·View the California data centers & crypto mining overview
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