Rialto, CA Data Centers & Crypto Mining: Data Center Zoning & Siting (2026)
Key Facts
- Dedicated ordinance
- None
- Zones
- M-1, M-2, PID industrial
- By-right
- Data processing laboratories (18.38.020)
- PID zone
- Conditional development permit required
- Moratorium
- None adopted
Summary
Rialto has no data-center ordinance and no data-center use category. Data centers site in the M-1 light manufacturing and M-2 general manufacturing zones, where Municipal Code 18.38.020 permits data processing laboratories by right, or in the PID zone by conditional development permit.
Uses permitted are as follows: A. Light manufacturing, processing or treatment of products ... 10. Research, development and data processing laboratories including: a. Chemical, b. Dental, c. Electrical, d. Mechanical, e. Medical, f. Optical
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 39).
Full Breakdown
Rialto's zoning code names no data center use. Section 18.38.020 of the M-1 light manufacturing zone permits research, development and data processing laboratories, plus electric distribution and transmission substations, by right. The M-2 general manufacturing zone under Section 18.42.020 permits every M-1 use and any other use not prohibited by law. Where a use does not fit a listed category, Section 18.38.020(F) lets the Planning Commission permit a similar use by resolution. In the Planned Industrial Development zone, Chapter 18.40, projects proceed through a conditional development permit approved by the Planning Commission, which is discretionary and triggers CEQA review. San Bernardino County routes data centers to its Community Industrial or Regional Industrial districts instead.
Violations & Fines
Building or operating a data center outside a manufacturing zone, or without a required conditional development permit, is a zoning violation enforced by Rialto Code Enforcement through citations, nuisance abatement, and stop-work orders.
Frequently Asked Questions
Where can a data center be built in Rialto?
Does Rialto have a data center ordinance?
Does a Rialto data center need CEQA review?
Sources & Official References
Other rules in Rialto
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