Naperville, IL Animal Ordinances: Microchipping (2026)
Key Facts
- Requirement
- Microchip before possession
- Applies to
- Shelter, rescue, pet-store animals
- Impounded strays
- Chipped at owner's expense
- Penalty
- $100–$500 per offense
- Citation
- Naperville Municipal Code § 10-4-15
Summary
Naperville requires every cat and dog adopted from a shelter, rescue, or pet store to be microchipped before the new owner takes possession, per Naperville Municipal Code § 10-4-15.
All cats and dogs adopted from an animal shelter or animal rescue organization or purchased from a pet store operator must be microchipped and the microchip registration process must be initiated with a national microchip registry to include the name and contact information of the owner before the owner takes possession of the animal. The animal shelter, rescue or pet store shall be listed as a secondary point of contact on the microchip registration.2.All animals impounded by Animal Control without a microchip will be microchipped and registered to the owner, at the owner's expense, prior to returning the animal to the owner. (Ord. No. 18-067, § 1, 6-19-2018)
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 101).
Full Breakdown
Naperville Municipal Code § 10-4-15 requires microchipping and registration with a national microchip registry before a cat or dog leaves an animal shelter, rescue organization, or pet store operator; the shelter, rescue, or store must also be listed as a secondary contact on the chip. Any animal impounded by Naperville Animal Control that lacks a microchip is chipped and registered to the owner at the owner's expense before it is returned. The rule applies citywide regardless of whether the animal was adopted or purchased.
Violations & Fines
Violating Chapter 4's animal provisions carries a $100 fine for a first offense and $100 to $500 for each repeat offense under Section 10-4-14, with each day a separate violation.
Frequently Asked Questions
Does Naperville require microchipping for all pets?
What happens if my impounded pet has no microchip?
Sources & Official References
Other rules in Naperville
Compare Naperville to another location·View the Illinois animal ordinances overview
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