Serving DuPage, Kane and Kendall Counties

PLEASE NOTE: Starting Sept. 14, our local offices are open to visitors Monday, Tuesday and Thursday, from 8:30 a.m.-noon and 1-4:30 p.m. Appointments are recommended to ensure appropriate staff members are available.

  • When visiting our offices, face masks or face coverings (that cover both the nose and mouth) will be required.
  • All visitors must sign in and stay in the appropriate visitor/entry area. (Sign-in information will only be referenced if the health department requests the information for contact tracing.)
  • While visiting our offices, we ask that you practice social distancing, and wash or sanitize your hands before and after your visit.
  • The Master Gardener Help Desks will continue to be staffed virtually with each county available via email. Learn more here.

For more about visitor guidelines, new office schedules, and contact information, please click your local county below: DUPAGE – KANE – KENDALL

As you know, in-person events and meetings are very limited at this time. However, there is a variety of online programming available, and you can learn more on our Events page.

Scroll down for addresses and maps for each office.
Kane County Extension Office

535 South Randall Road
St. Charles, IL 60174-1591
Phone: 630-584-6166 
FAX: 630-584-4610
Hours: Monday - Friday 8:30 am to 4:30 pm
Master Gardener Help Desk

DuPage County Extension Office

1100 E. Warrenville Road
Suite 170
Naperville, IL 60563
Phone: 630-955-1123
FAX: 630-955-1180
Hours: Mon 11 am to 7 pm and Tue-Fri 8:30 am to 4:30 pm

Master Gardener Help Desk

Kendall County Extension Office

7775-B Illinois Route 47
Yorkville, IL 60560
Phone: 630-553-5823
FAX: 630-553-5871
Hours: Monday - Friday 8:30 am to 4:30 pm

Master Gardener Help Desk