Springfield, IL Animal Ordinances: Mandatory Spay/Neuter (2026)
Key Facts
- Trigger
- Dog judicially found vicious under Sec. 91.39
- Deadline
- Spay/neuter and microchip within 10 days
- Cost
- At the owner's expense
- Impoundment fine
- $1,000 to release an unconfined vicious dog
- Appeal window
- 15 working days before euthanasia may proceed
- Enforcing agency
- Springfield PD / Sangamon County Animal Control
Summary
Springfield has no general spay/neuter mandate for pet dogs and cats, but City Code Sec. 91.19(g) forces the issue once a dog is adjudicated vicious: within ten days of that finding, the owner must have the dog spayed or neutered, at the owner's own expense, and microchipped. Animal control enforces the mandate alongside the confinement rules that come with a vicious-dog finding.
(g)If a dog is found to be a vicious dog, the dog shall be spayed or neutered within ten days of the finding at the expense of its owner and microchipped.
Official source re-checked September 7, 2026: no newer edition of the code had been published (publisher’s edition: Code of Ordinances: Supplement 82).
Full Breakdown
Once an animal is adjudicated vicious under Sec. 39, Sec. 19 imposes standing conditions on the owner, and one is medical: subsection (g) requires the dog be spayed or neutered within ten days of the vicious finding, at the owner's expense, and microchipped at the same time. This sits alongside the dog's confinement duties: it must stay in an ordered enclosure with a red-lettered sign reading "DECLARED VICIOUS ANIMAL, SANGAMON COUNTY ANIMAL CONTROL DIVISION" posted at each enclosure entrance. The dog may leave the enclosure only for veterinary care, in a life-threatening emergency, or under a court order requiring it be muzzled and leashed (six feet maximum) under the direct control of the adult owner.
A vicious dog found outside its enclosure and unmuzzled is impounded, and the owner must pay a $1,000 fine before the city releases it. If the owner does not appeal the impoundment order to the circuit court within 15 working days, the dog may be euthanized; filing a notice of appeal automatically stays that order pending the outcome. Springfield police and Sangamon County Animal Control administer these requirements. The spay/neuter and microchip mandate functions as a permanent condition attached to a dog the city has already found dangerous, not as a citywide licensing rule for the general pet population.
Violations & Fines
Missing the ten-day spay/neuter and microchip deadline compounds noncompliance with Sec. 91.19's confinement and signage rules. An unconfined, unmuzzled vicious dog is impounded on sight, and the owner owes a $1,000 fine before release. Missing the 15-working-day appeal deadline after impoundment lets the dog be euthanized; filing an appeal in circuit court automatically pauses that outcome while it is pending.
Frequently Asked Questions
Does Springfield require all dogs and cats to be spayed or neutered?
What happens if the ten-day deadline is missed?
Who pays for the spay/neuter and microchip?
Sources & Official References
Other rules in Springfield
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