2026 Property Tax Due Dates
March 1
First half (5% discount if paid by Feb 15)
October 15
Second half
Payment Methods
Online, Mail, In-Person
Williams County Treasurer
Phone
(701) 577-4530How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Williams County Treasurer
In Person
Visit the Treasurer's office
Other Counties in North Dakota
About Williams County
Williams County is located on the western border of the U.S. state of North Dakota, next to Montana. As of the 2020 census, the population was 40,950, and was estimated to be 40,763 in 2024, making it the fifth-most populous county in North Dakota. The county seat and the largest city is Williston.
Source: Wikipedia — content available under CC BY-SA 4.0
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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.