Office Update 3-1-2021

We are open to visitors Monday through Thursday

8:30 a.m. to 4:30 p.m. (closed noon to 1 p.m.)

DuPage: 630-955-1123  |  Kane: 630-584-6166  |  Kendall: 630-553-5823

Call your office for assistance or contact the appropriate staff member using the county directories below.

Visitors and staff must follow these safety protocolsThis is in accordance with Illinois Department of Public Health and University of Illinois protocols. By visiting our offices, you affirm you have assessed your own health and you are not experiencing any COVID-19 symptoms.

Need assistance? Have a question? We are still working to serve our communities! Click on your county below to access a directory for your local offices and staff members. This includes email addresses, office numbers, and alternate phone numbers.

  • DuPage County (staff based in the Naperville office)
  • Kane County (staff based in the St. Charles office, including unit-wide Extension Educators)
  • Kendall County (staff based in the Yorkville office)


Find a variety of online programming 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