Thomas Jefferson’s Birthday

Office Information

Oswego Township
99 Boulder Hill Pass, Montgomery, IL
Open Monday – Friday, 8:00 – 3:30

Highway Department
1150 Route 25, Oswego, IL
630-264-4587

Supervisor: 630-554-3211
Assessor: 630-554-3214
Fax: 630-554-2950

Verify Residency

Oswego Township occupies a 6 mile square plus additional land to the south of the Fox River in the northeast corner of Kendall County, Illinois.

Verify your residency here