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HomepageimageMcHenry County residents are touched every day by our services. Every time we eat in a restaurant, register our pets, build a well or septic system, need help for health care, or get our children vaccinated for school, the Health Department is involved to make us safer and healthier.

In addition to Environmental Health permits and inspections, Animal Control and Vital Records, we offer a variety of clinic services to the public.
  • Immunizations
  • TB control
  • Chronic and Communicable disease control
  • Hearing and vision screening for children
  • STD/HIV testing and counseling 


 Legionnaires' Disease

There have been a number of Legionnaires ’ disease cases reported in McHenry County during June and early July.  Illnesses have been reported in Union, the City of McHenry, Wonder Lake, Algonquin, Huntley and Crystal Lake.  People most at risk from Legionnaires Disease are those over the age of 50 and individuals with pre-existing health conditions. The symptoms are similar to those of pneumonia.  If you think you have been exposed to legionella bacteria and are symptomatic, see your health care provider.  Legionnaires’ disease is not spread person-to-person, but by breathing in contaminated mist or vapor.  Legionella bacteria occurs naturally in freshwater environments and more frequently in hot, humid weather. It can become a health concern when it grows and spreads in building water systems and other water sources.

Hot Weather Tips

Hot weather can be dangerous.  Try to stay inside during the hottest part of the day. More hot weather tips can be found here.


 Health Department to Consolidate WIC and FCM Locations

Beginning July 20th, the WIC and FCM programs will discontinue services at the McHenry Community Health Center. Services will be available at existing locations in Crystal Lake, Woodstock, and Harvard.  Office hours will be extended beginning in June at these locations.  For questions, contact the WIC main office at 815-334-4505 or Family Case Management at 815-334-4510. 

 2018 Anti-Tobacco Media Design Contest Winners

Congratulations to the 1st place and 2nd place winners of the 14th Annual Anti-Tobacco Media Design Contest! 

1st place winner: Pictured: Susan Karras, Director of Nursing; Jasmin Vilchis, contest winner; Joseph Gugle, Interim Public Health Administrator   

2018 winner tobacco media design contest Susan Karras, Jasmin Vilchis, Joseph Gugle

1st place entry:

2018 media contest 1st place billboard

2nd place winner:  Pictured:    Patrick Enright, Richmond Burton High School Principal; Sarah Ames, runner up;  Sunny Bengtson, MCDH representative   

2018 runner up tobacco media design contest 2018 Patrick Enright, Sarah Ames, Sunny Bengston


2nd place entry:

2018 media contest 2nd place billboard

Are you at risk for type 2 diabetes?     Take the test in English or Spanish
No Cost 6 Week Diabetes Self-Management Classes

Registration is open for Johnsburg (English speaking class) and Crystal Lake (English speaking class).

8/1/2018 Johnsburg (English speaking class) 6:00 pm - 8:30 pm
9/19/2018 MCDH Crystal Lake (English speaking class) 6:00 pm - 8:30 pm

Meeting Information



MCDH Main Office
Building A
2200 N. Seminary Ave.
Woodstock, IL  60098
Phone: 815.334.4510
Fax: 815.334.4635
After Hours: 815.344.7421
Email: Health@McHenryCountyIL.gov 
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MCDH Celebrating 50 Years

MCDH Celebrating 50 Years











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