Data Centers & Crypto Mining in Napa County, CA (2026)
1 rule for unincorporated Napa County, California.
Verified from official government sources
Note: These county rules apply to unincorporated areas of Napa County. If you live within an incorporated city, that city's own rules apply: see the city list below.
Data Center Noise Limits
Napa County caps exterior noise at 45 dBA at night and 50 dBA by day at a neighboring rural home's property line, under Code Section 8.16.070. A data center's cooling equipment and generators would be held to these limits through permit and CEQA review.
Napa County Noise Limits for Data Centers
Some RestrictionsNapa County Code § 8.16.070 (Exterior noise limits), exterior noise limits table
The standard limits set forth in this table shall be reduced by 5 dB, but not to lower than 45 dB, for any offensive noise that contains a steady, audible tone such as a whine, screech or hum, or that is a repetitive noise such as hammering or riveting, or that contains music or speech.
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