Pomona, CA Data Centers & Crypto Mining: Data Center Zoning & Siting (2026)
Key Facts
- Dedicated ordinance
- None
- By-right use
- "Data processing" in M zone
- Industrial zones
- C-IND, M, M-1
- Permit level
- By-right; ministerial building permit
- Discretionary review
- CEQA if applicable
Summary
Pomona has no data-center ordinance, but its Zoning Ordinance lists "data processing" as a by-right permitted use in the "M" Special Industrial Zone. Data centers also fit the M-1 light-industrial and C-IND commercial-industrial districts, permitted by right when housed in a fully enclosed building.
The following buildings, structures and uses, either singly or in combination, are permitted in the "M" zone ... (a) Light manufacturing, research, assembly, testing and repair of components, devices, equipment and systems, and parts and components, such as, but not limited to: ... Data processing.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: City Code: Supplement 31).
Full Breakdown
Pomona's Zoning Ordinance (Appendix I) does not define "data center" as a use. The "M" Special Industrial Zone, Sec. .396, permits "data processing" outright among light-manufacturing and research uses, so a server facility is allowed by right where operations sit within a totally enclosed building. The M-1 Light Industrial and C-IND Commercial-Industrial districts admit the same industrial and warehousing uses. No conditional use permit targets data centers; ministerial building and electrical permits apply. A discretionary project still triggers CEQA review. Unlike Los Angeles County, Pomona adopted no moratorium and ordered no study.
Violations & Fines
Operating a data center outside Pomona's industrial zones, or outside a totally enclosed building where required, violates the Zoning Ordinance, enforced by Planning and Code Enforcement through stop-work orders, penalties, and abatement.
Frequently Asked Questions
Where can data centers be built in Pomona?
Does Pomona require a special permit for a data center?
Does Pomona have a data-center ordinance or moratorium?
Sources & Official References
Other rules in Pomona
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