Willett, Hofmann & Associates has offices in Northern Illinois and Southwest Wisconsin. 

The Dixon office, WHA's headquarters since 1962.

809 East 2nd Street
Dixon, IL 61021
Phone: (815) 284-3381
Fax: (815) 284-3385

The historic Lincoln-Douglas Center in Freeport,

home to the Freeport office since 2001.

10 North Galena Avenue, Suite 150
Freeport, IL 61032
Phone: (815) 232-3506
Fax: (815) 232-6515

The Rockford office, conveniently located near the airport.

57 Airport Drive
Rockford, IL 61109
Phone: (815) 964-2897
Fax: (815) 964-2899

STERLING OFFICE
212 3rd Street
Sterling, IL 61081
Phone: (815) 626-3861
Fax: (815) 626-5645

JOLIET OFFICE
1000 Essington Road
Joliet, IL 60435
Phone: (815) 725-4525

MONROE OFFICE
1625 Tenth Street, Suite 204
Monroe, WI 53566
Phone: (608) 329-4222