Sales Tax in Rock Springs, Wyoming in 2025
The combined sales tax rate for Rock Springs, Wyoming is 6.00%. Your total sales tax rate is the sum of the Wyoming state tax (4.00%), the Sweetwater County sales tax 2.00%. There is no special tax in Rock Springs.
But aren't you tired of tracking sales tax rates manually? You can use Zamp instead to streamline and safeguard your compliance.
We'll walk you through how the sales tax rate is determined for Rock Springs and address some common questions you may have. We'll also cover how to collect, audit, and remit sales tax in Rock Springs.
Plus, we’ll share the best solution that will ensure you are always compliant across the entire sales tax lifecycle.
Disclaimer: Our sales tax data is updated on a quarterly basis.
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Rock Springs Sales Tax Rate 2025
Rock Springs is located in Sweetwater County in Wyoming, United States, and has a sales tax rate of 6.00%. This includes local and state sales tax rates.
Here is the breakdown of the Rock Springs's sales tax:
| Tax Jurisdiction | Sales Tax Rate |
| State Tax | 4.00% |
| County Tax | 2.00% |
| Combined Rate | 6.00% |
This rate applies to the following zip codes in Rock Springs:
| District | Zip Codes | Combined Sales Tax Rate |
| Sweetwater County | 82901, 82902 | 6.00% |
How Does the Rock Springs Sales Tax Compare to the Rest of Wyoming?
Rock Springs’s 6.00% sales tax rate is the highest rate you can find in Wyoming. It is 2.00% higher than Wyoming’s lowest rate, which is 4.00% and can be found in Cody, among other places.
To give you a better idea, here’s a comparison of Rock Springs sales tax rates with a few other cities in Wyoming:
| City | Sales Tax Rates |
| Wilson | 7.00% |
| Saratoga | 6.00% |
| Rock Springs | 6.00% |
| Rock River | 6.00% |
| Big Piney | 4.00% |
What Creates Sales Tax Nexus in Rock Springs?
Rock Springs follows the same sales tax nexus rules as Wyoming, with no extra exemptions.
Read More: Check out this detailed guide on Sales Tax in Wyoming.
You have sales tax nexus in Rock Springs if you fulfill any of these conditions:
- Physical nexus: Businesses that operate a physical storefront and sell tangible personal property.
- Economic nexus: Remote sellers with more than $100,000 in gross sales in Wyoming during the current or previous calendar year.
Learn more about sales tax nexus and when you’re required to collect sales tax.
What Products Are Exempt from Rock Springs Sales Tax?
Rock Springs applies the same sales tax rules as Wyoming's.
The following items are exempt from sales tax in Rock Springs:
- Sales of livestock and feed used for raising livestock or poultry for sale
- Sales of seeds, roots, bulbs, young plants, and fertilizers applied to land for growing products intended for sale are exempt.
- Sales of power or fuel used directly in manufacturing, processing, or agricultural operations by businesses engaged in those activities are exempt.
- Intrastate transportation of sick, injured, or deceased individuals by a public utility or other provider using an ambulance.
- Sales of some medicines sold under a prescription, including oxygen, prosthetic devices, and hearing aid.
Who Needs a Sales Permit in Rock Springs?
If your business sells items covered by an imposition statute (law that defines which sales must be taxed) in Rock Springs, you must register for a Wyoming sales tax license and collect the applicable tax.
How to File and Pay Sales Tax in Rock Springs
You can file Rock Springs sales tax returns using the these methods:
- Automated: Let Zamp handle your Wyoming sales tax filing and remittance so you won’t have to deal with sales tax returns ever again.
- File online: Pay online at the Wyoming Internet Filing System Website.