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Sangamon County, IL Animal Ordinances: Mandatory Spay/Neuter (2026)

Significant Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Trigger
Animal bites a person
Mandate
Spay/neuter and microchip after confinement
Fine
$250 flat fine
Confinement standard
Per Illinois Animal Control Act § 13

Summary

Sangamon County requires any dog or cat that bites someone to be examined, spayed or neutered, and microchipped once its confinement and observation period ends.

City-specific rules exist: Springfield has its own mandatory spay/neuter rules that differ from Sangamon County's county-level regulations. If you live in Springfield, check the city-specific page instead.

Animals that bite shall be confined and observed in accordance with Section 13 of the Illinois Animal Control Act. At the end of the confinement period, dogs and cats shall be examined by a licensed veterinarian, spayed or neutered and microchipped. Any person in violation of this section shall be fined two hundred fifty dollars.

Full Breakdown

Under the county's animal bite provision, any animal that bites shall be confined and observed for the period set by the Illinois Animal Control Act. At the end of that confinement, dogs and cats must be examined by a licensed veterinarian, spayed or neutered, and microchipped: regardless of whether the bite also leads to a separate dangerous- or vicious-dog finding. The mandate applies to unincorporated Sangamon County through the county's animal control program and carries its own fixed fine for noncompliance.

Violations & Fines

Fixed fine of $250 for any person who fails to comply with the confinement, spay/neuter, and microchip requirement under § 6.04.073.1.

Frequently Asked Questions

Does this apply even if the bite doesn't lead to a vicious-dog case?
Yes. Section 6.04.073.1 applies to any biting animal's confinement and post-observation spay/neuter and microchip requirement, independent of a separate vicious- or dangerous-dog proceeding.
Who confirms the animal has been altered?
A licensed veterinarian must examine the dog or cat at the end of the confinement period and perform the spay/neuter and microchipping the section requires.

Sources & Official References

Other rules in Sangamon County

All Sangamon County rules

Compare Sangamon County to another location·View the Illinois animal ordinances overview

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