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
Slope County Treasurer
Phone
(701) 879-6272How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Slope County Treasurer
In Person
Visit the Treasurer's office
Other Counties in North Dakota
About Slope County
Slope County is a county in the U.S. state of North Dakota. As of the 2020 census, the population was 706, and was estimated to be 660 in 2024, making it the least populous county in North Dakota and the 18th-least populous county in the United States. The county seat is Amidon and the largest city is Marmarth.
Source: Wikipedia — content available under CC BY-SA 4.0
Related Resources
Get Deadline Reminders
We'll email you 14 days 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.