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DuPage County, IL Data Centers & Crypto Mining: Data Center Zoning & Siting (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified September 2026

Key Facts

Permitted district
O-R Office Research only
Use classification
Data processing and computer centers
Industrial districts
Not named in I-1/I-2 lists
Moratorium
None found in Chapter 37
Violation fine
$100-$500 per week

Summary

Unincorporated DuPage zones data processing and computer centers as a by-right use only in the O-R Office Research District, not commercial, industrial, or residential districts.

City-specific rules exist: Naperville has its own data center zoning & siting rules that differ from DuPage County's county-level regulations. If you live in Naperville, check the city-specific page instead.

Data processing and computer centers, including service and maintenance of electronic data processing and equipment.

View official code

Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 14 Update 1).

Full Breakdown

The county zoning ordinance lists "data processing and computer centers, including service and maintenance of electronic data processing and equipment" as a permitted use only in Section 37-902, the O-R Office Research District. Neither the O district, I-1 Light Industrial, nor I-2 General Industrial permitted-use lists name data centers outright; a large server facility in those districts would need to fit the general industrial catch-all or seek conditional-use approval. There is no county-wide moratorium or cryptocurrency-mining ordinance in Chapter 37.

Violations & Fines

Building or operating outside the zoned use without a permit is a Code violation under Sec. 37-1417(D): fine of $100-$500, with each week of continued violation a separate offense, plus possible court-ordered abatement.

Frequently Asked Questions

Can a data center be built anywhere in unincorporated DuPage County?
No. "Data processing and computer centers" is a named permitted use only in the O-R Office Research District under Sec. 37-902.1; other districts don't list it outright.
Does DuPage County have a data center or crypto-mining moratorium?
No. Chapter 37 (the zoning ordinance) contains no moratorium or dedicated cryptocurrency-mining provision as of this code.
What if a data center is built in the wrong zoning district?
It's a Code violation under Sec. 37-1417(D): a fine of $100 to $500, with each week the violation continues counted as a separate offense.

Sources & Official References

Other rules in DuPage County

Parking Rules: Street Parking LimitsSignificant RestrictionsNoise Ordinances: Barking DogsSome RestrictionsParking Rules: Commercial & Oversized VehiclesHeavy RestrictionsParking Rules: Driveway RulesSome RestrictionsFence Regulations: Fence Permit RequirementsSome RestrictionsFence Regulations: Material RestrictionsSignificant Restrictions

All DuPage County rules

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Data Center Zoning & Siting in Cities Across DuPage County

Naperville, IL