Skip to main content
History of Clinton County
Understanding County Government
Links of Interest
Board of Supervisors
Clinton County Justice Coordinating Commission
Clinton County Medical Examiner
Clinton Jackson Early Childhood Iowa
Community Supports Department
Secondary Road Department
Community Student Loan Assistance Program
Prescription Discount Card
How do I...?
Find Polling Locations
Clerk of Court
Clinton County Community Student Loan Assistance Program
Motor Vehicle Registration
Clinton County Emergency Notification System
Permit to Carry Weapons Applications
Request to Public Records
Secure Email Portal
Clinton County Policies
Property Tax Information
Tax statements are mailed once annually in August.
Taxes may be paid in one lump sum on or before September 30th or may be paid in two (2) installments, by September 30th and March 31st each year.
Special assessments must always be paid by September 30th.
Any taxes or special assessments not paid by the 3rd Monday in June will be sold at the annual tax sale.
Elderly/Disabled Credit, Rent Reimbursement, Mobile Home, and Special Assessment credit forms are available after January 1st each year and must be returned to the Treasurer's Office before June 1st annually.
Property Taxes can be paid in person at either of our office locations.
Clinton Treasurer's Office
Monday thru Thursday 8:00 a.m. to 4:30 p.m.,
Friday 8:30 a.m. to 4:30 p.m.
DeWitt Satellite Office hours
Tuesday and Thursday: 8:30 a.m. thru 11:00 am, and 12:00 pm thru 4:00 p.m.
Wednesday: 8:30 a.m. thru 4:00 p.m.
For property tax payments and information, please visit