McHenry County Department of Health - Animal Control

Veterinary Public Health Division

100 North Virginia Street
Crystal Lake, IL 60014
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(815) 459-6222

Business Hours
M,T,TH,F: 8:00-4:30

Adoption Hours
M,T,TH,F: 10:30-4:30

HeartPawPrintBIGRabies Vaccination and Microchip Clinic

 This clinic has been postponed and will be rescheduled.  The rescheduled date will be posted here when it is available.


Help our pets! Click here to see our Wish List  

Check out our Adoptable Pets and adoption process here.


How To:

Adopt a New Pet

Find a Veterinarian

Dealing with Wildlife

Report Animal Bites

Kids and Animal Safety (Eng and Esp)

Report Animal Cruelty

Volunteer with MCAC

Learn about Rabies

Learn about Tick-borne diseases

Learn about Common Animal Illnesses

Register, Spay/Neuter, and Microchip Your Pet

Weather & Pets

Canine and Feline Body Language (in Eng and Esp)


McHenry County Animal Control and Adoption Center (MCAC) is the location of the McHenry County Department of Health Veterinary Division. MCDH Veterinary Division's  Animal Control Officers provide code enforcement of McHenry County’s Animal Control Ordinance Article XVII. Effective animal control activities protect people and pets. Community outreach services include education on dog bite prevention, humane care for animals, and pet adoptions. MCAC houses stray animals for the county, and provides dog licensing.

Animal Control Officers respond to citizen complaints about violations of Article XVII. Each year, MCDH Veterinary Division conducts thousands of investigations, ranging from minor code violations to felony animal cruelty. When possible, voluntary compliance is sought through educating owners about animal care responsibilities. If compliance is not obtained, MCDH Veterinary Division officers have the ability to issue tickets for violations of Article XVII. Officers also pick up stray, sick and injured animals.

If you are aware of a situation where public health or safety is in jeopardy, or an animal is the subject of neglect or cruelty, you are urged to contact MCDH Veterinary Division at (815) 459-6222 to report what you have seen, heard, or experienced. An Animal Control Officer will be dispatched to investigate and follow up on the situation. 


Learn more about Canine Influenza, from the American Veterinary Medical Association. 

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