Data Centers & Crypto Mining in Ontario, CA (2026)
2 verified data centers & crypto mining rules for Ontario, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Data Center Zoning & Siting
Ontario expressly lists "Data Processing, Hosting and Related Services" as a land use. It is permitted by right in all five industrial zones - BP, IP, IL, IG, and IH - and allowed only ancillary to a permitted use in the OL and OH office zones.
Ontario Data Center Zoning and Siting
Few RestrictionsOntario, CA, Development Code Sec. 5.03.140 (Data Processing, Hosting, and Related Services); Table 5.02-1 (Land Use Matrix)
Within the OL and OH zoning districts, data processing, hosting, and related services shall only be allowed in conjunction with a permitted or conditionally permitted land use. Standalone data processing, hosting, and related services shall be prohibited within these zoning districts.
Data Center Noise Limits
Ontario caps exterior noise by receiving zone under Municipal Code Sec. 5-29.04: 65 dBA daytime and 45 dBA overnight at single-family homes, and 70 dBA at any hour on industrial land. A data center's cooling and generators must meet the nearest receiver's limit.
Ontario Data Center Noise Limits
Some RestrictionsOntario, CA, Municipal Code Sec. 5-29.04 (Exterior Noise Standards), Chapter 29 (Noise)
It is unlawful for any person at any location within the incorporated area of the City to create noise, or to allow the creation of any noise on property owned, leased, occupied or otherwise controlled by such person, which noise causes the noise level, when measured at any location on any other property, to exceed either of the following:
Looking for San Bernardino County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Ontario city rules.
Data Centers & Crypto Mining in San Bernardino County →