2026 Property Tax Due Dates
November 10
First half (50%)
May 10
Second half (50%)
Payment Methods
Online, Mail, In-Person
Sweetwater County Treasurer
How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Sweetwater County Treasurer
In Person
Visit the Treasurer's office — 80 W Flaming Gorge Way, Suite 139, Green River WY 82935, Mon-Fri 8am - 5pm
Other Counties in Wyoming
About Sweetwater County
Sweetwater County is a county in southwestern Wyoming, United States. As of the 2020 United States census, the population was 42,272, making it the fourth-most populous county in Wyoming. Its county seat is Green River.
Source: Wikipedia — content available under CC BY-SA 4.0
Related Resources
Get Deadline Reminders
We'll email you 2 weeks 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.