Sales tax in Weston County, Wyoming
The sales tax rate in Weston County, Wyoming is 5%. That is a 4% state rate plus a 1% county rate, and it is the same at every address in the county.
What is the sales tax rate in Weston County?
| Wyoming state rate | 4% |
|---|---|
| Weston County rate | 1% |
| Combined rate | 5% |
Why the rate here is not the whole story
Wyoming's state sales and use tax is 4 percent and Weston County levies a 1 percent general purpose county option tax, for a total of 5 percent. Wyoming county option taxes are approved by a county-wide referendum and carry a term that expires, either on a date or once a set dollar amount has been collected, so a county's rate can change at the start of any calendar quarter and rates more than a few months old go stale. The county line is not the tax boundary in Wyoming: under W.S. 39-15-204(a)(vii) any city or town may levy its own tax of up to 1 percent inside its limits, and under W.S. 39-15-204(a)(v) a resort district may levy up to 3 percent inside its boundaries. No Wyoming city levies today, since Casper's 1 percent municipal tax ended on June 30, 2026, and only the two resort districts in Teton County do. Wyoming exempts food for domestic home consumption from both the state and the county tax under W.S. 39-15-105, so groceries are untaxed while prepared food, alcoholic beverages and tobacco are not. Wyoming also charges a separate statewide and local lodging tax, which is a different tax and is not included in any rate here. The Department's own address level rate lookup is marked as still under construction, so the linked page is its rate chart and zip code chart instead.
How do I find the exact rate for an address in Weston County?
The rate is the same across Weston County, but if you are collecting tax it is worth confirming against the source. Use Wyoming's own lookup. A vendor's calculator is not the state speaking.
Who has to collect sales tax in Weston County?
A seller with a physical presence in Wyoming collects at the rate for the address where the sale takes place. A remote seller collects once it passes Wyoming's economic nexus threshold, which is a separate question from the rate and is covered on our sales tax nexus checker. Marketplace facilitators generally collect on behalf of their sellers.
How does Weston County compare?
See Wyoming sales tax for the statewide picture, including the average local rate and what is exempt. Property tax is a separate tax with separate rules: property tax in Weston County.
Sources
- Weston County rates: Wyoming Department of Revenue, Excise Tax Division, Sale/Use and Lodging Tax Rates by Locality, effective date 07/01/2026, published at https://excise-tax-div.wyo.gov/sales-use-tax-rate-charts, cross-checked line by line against the Department's Streamlined Sales Tax rate and boundary file WYR-2026-Q3-JUN02, which carries a begin and end date for every jurisdiction
- Collected and verified September 9, 2026. Confidence: P on the rate components, P on the range (P read on a primary agency page, S strong but indirect, U unverified).