Will County Treasurer
Will County Office Building
302 N. Chicago St.
Joliet, IL 60432 
Phone: 815-740-4675
Automated Tax Information Line: 815-740-4682
Fax: 815-740-4695
Email Will County Treasurer
Will County Treasurer website

Township Assessors
Debbi Mason
Lockport Township Assessor
222 E. 9th Street, Room 305
Lockport, IL 6041
Phone: 815-838-0780
Fax: 815-838-5479
Lockport Township Assessor website

Office Hours
Monday, Tuesday, Thursday, Friday
9 a.m. - 4 p.m.

Wednesday
9 a.m. - 12 p.m. (noon)

Dupage Township Assessor
John E. Randall
DuPage Township Assessor
241 Canterbury Lane 
Bolingbrook, IL 60440 
Phone: 630-759-1315
Fax: 630-759-6163
DuPage Township Assessor website

Office Hours
Monday - Friday
9 a.m. - 4 p.m.