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St. Clair County, IL Animal Ordinances: Cat Rules (2026)

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

Key Facts

Registration required
Cats 4 months+
Altered cat fee
$10 per year
Unaltered cat fee
$20 per year
Rabies shot
Required, licensed vet
Cat leash law
None county-wide

Summary

St. Clair County requires every cat four months or older to be registered annually and rabies-vaccinated. There is no county cat leash law, but cats found running at large can be impounded and redeemed like dogs. Cities may add their own cat rules.

These county ordinances apply to unincorporated areas of St. Clair County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

Every person who is or has been a resident of this County for thirty (30) days or more and who is the owner of any dog or cat, four (4) months or more of age, shall cause such dog or cat to be registered and shall pay an annual fee.

Full Breakdown

Under 3-3-1, any resident owner of a cat four months or older 'shall cause such cat to be registered' and pay an annual fee - $10 for a spayed/neutered cat and $20 for an unaltered cat. Section 3-4-1 requires every cat four months or older, not confined at all times, to be rabies-inoculated by a licensed veterinarian at state-set intervals. Impounded cats are handled like dogs (3-4-4): the owner must show current registration and rabies proof and pay board of $5 per day to redeem. The Code does not impose a cat leash requirement, but keeping cats does not exempt owners from nuisance and rabies-observation rules (3-4-8) after a bite.

Violations & Fines

Owners who fail to register a cat after 60 days' actual notice may face court proceedings (3-3-1). General violations are a petty offense fined $75-$200 for the first or second offense (3-4-14).

Frequently Asked Questions

Do I have to register my cat?
Yes. Every cat four months or older owned by a county resident must be registered annually - $10 if spayed/neutered, $20 if unaltered - and kept rabies-vaccinated.
Can my cat roam outdoors?
There is no county cat leash law, but a roaming cat can be impounded, and after any bite the county's rabies-observation rules apply to cats as well as dogs.

Sources & Official References

Other rules in St. Clair County

All St. Clair County rules

Compare St. Clair County to another location·View the Illinois animal ordinances overview

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