2026 Property Tax Due Dates
Installment 1
September 30
First half
Installment 2
March 31
Second half
Penalty: 1.5% per monthGrace period: None
Payment Methods
Online, Mail, In-Person
Grundy County Treasurer
Phone
(319) 824-3108How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Grundy County Treasurer
In Person
Visit the Treasurer's office
Other Counties in Iowa
About Grundy County
Grundy County is a county located in the U.S. state of Iowa. At the 2020 census, the population was 12,329, and was estimated to be 12,405 in 2024. The county seat and the largest city is Grundy Center.
Source: Wikipedia — content available under CC BY-SA 4.0
Related Resources
Get Deadline Reminders
We'll email you 336 hours before your property taxes are due.
Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.