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Contact us

We'd love to hear from you! Please email us using the form below.

This form is not intended for making research requests or inquiring about donating artifacts to the museum.

For information on our Research Center or to start a research request, view our Research Center guidelines and request form

For information on donating items to the museum, view our artifact donation guidelines and artifact donation form

For information on volunteering with us, view our volunteer form

PHONE: 815-923-2267    MAIL: P.O. Box 434     ADDRESS: 6422 MAIN ST. UNION IL 60180


Our Address

6422 Main St.,
P.O. Box 434, Union, IL 60180
Phone: (815) 923-2267

Museum Hours

The Museum reopens on March 16, 2024, at 11 AM. Admission is free to members; $5 for adults and $3 for students and seniors.

Research Library Hours

The library hours are 9 a.m to 4:30 p.m. Monday through Friday year round. An Appointment is required at least 24 hours in advance. Visit our Research Library or call 815-923-2267 for more information, and to schedule an appointment.

Society Office Hours

The Historical Society office is by appointment only, please call 815-923-2267.

The Museum and Offices are closed New Year's Eve, New Year's Day, Good Friday, Memorial Day, Fourth of July, Labor Day, Thanksgiving and "Black Friday," Christmas Eve and Christmas.

The McHenry County Historical Society has a wide array of volunteer opportunities available for those who are interested.