Below is a list of spay/neuter clinics in Illinois, Southern Wisconsin and Northwest Indiana. Most of these clinics provide spay/neuter and vaccine services, but (with some exceptions) are not full-service veterinary clinics. If you have a sick or injured cat, you may need to seek a full-service private veterinarian. Please reach out to clinics directly for pricing, services and availability. Most clinics require feral cats to be in humane traps, for the safety of clinic staff, and require that all cats in traps receive an ear tip.

Please understand that we update this list as often as we can. If you have any additions or changes, we appreciate your feedback at

A lot of cat traps inside covered with blankets