Data Centers & Crypto Mining in Maricopa County, AZ (2026)

2 county-level rules, plus city-specific rules for 7 cities in Maricopa County, Arizona.

Verified from official government sources

Note: These county rules apply to unincorporated areas of Maricopa County. If you live within an incorporated city, that city's own rules apply: see the city list below.

Data Center Noise Limits

Maricopa County has no decibel limit; Noise Ordinance P-23 uses an audibility standard. Data center cooling and generators must not be heard inside closed homes within 500 feet of the property line, or the owner faces misdemeanor charges.

Maricopa County Noise Rules for Data Centers

Some Restrictions

Maricopa County Noise Ordinance P-23, § VI.A.4 (Exemptions)

Noise emanating from mechanical devises associated with heating and cooling equipment and pool pumps when functioning in accordance with manufacturer's specifications and is in proper operating condition, and that no units emit noise that can be heard from within closed residential structures located within 500 feet of the boundary of the property from which such noise emanates.

Full ordinance details →Official source ↗

Crypto Mining Rules

Cryptocurrency mining rigs and server farms fall under Maricopa County's 'Data Center' zoning definition, restricting them to industrial-zoned parcels in unincorporated county land rather than allowing them anywhere by right.

Crypto Mining Data Centers in Maricopa County

Some Restrictions

Maricopa County Zoning Ordinance § 201

DATA CENTER: A facility primarily used for the processing, management, or storage of digital information, housing computer servers, data storage equipment, and related infrastructure... For zoning purposes, the term includes facilities engaged in activities such as telecommunications and storage systems, central and graphical processing, neural networks, quantum computing, data routing, server ...

Full ordinance details →Official source ↗