Wyoming Sales Tax Rates by City & County
Counties are the primary source of local variation in Wyoming, layering a general-purpose county rate plus, in some counties, a separate specific-purpose tax that voters approved for a fixed term. Wyoming's data set covers 25 local jurisdictions, from Park County (unincorporated areas) at 4.00% up to Teton County — unincorporated/special area at 7.00%.
Combined Rate
10.550%
| Detail | Value |
|---|---|
| ZIP Code | 98101 |
| State | WA |
| Data as of | 2026-08-04 |
Source: official Streamlined Sales Tax rate & boundary files (data as of 2026-08-04).
Combined Rate
10.550%ZIP-level rates cover the 24 Streamlined Sales Tax member states. Outside those states we fall back to the statewide base rate — never an invented local figure.
Edit inputs ↑Wyoming sales tax rates by city
| City | County | Combined Rate | vs. State Base | ZIP Codes |
|---|---|---|---|---|
| Casper | Natrona County | 5.00% | +1.000% | 3 |
Wyoming county & unincorporated-area rates
Rates that apply outside any named city — the county's own blanket rate for its unincorporated area, plus a small number of special-purpose codes the source data can't attach a place name to but can still attribute to a county.
| Area | Combined Rate | ZIP Codes |
|---|---|---|
| Albany County (unincorporated areas) | 5.00% | 13 |
| Big Horn County (unincorporated areas) | 5.00% | 14 |
| Campbell County (unincorporated areas) | 5.00% | 9 |
| Carbon County (unincorporated areas) | 6.00% | 13 |
| Converse County (unincorporated areas) | 5.00% | 6 |
| Crook County (unincorporated areas) | 5.00% | 11 |
| Fremont County (unincorporated areas) | 5.00% | 15 |
| Goshen County (unincorporated areas) | 5.25% | 14 |
| Hot Springs County (unincorporated areas) | 6.00% | 2 |
| Johnson County (unincorporated areas) | 5.00% | 7 |
| Laramie County (unincorporated areas) | 5.00% | 19 |
| Lincoln County (unincorporated areas) | 5.00% | 16 |
| Natrona County (unincorporated areas) | 5.00% | 15 |
| Niobrara County (unincorporated areas) | 6.00% | 6 |
| Park County (unincorporated areas) | 4.00% | 12 |
| Platte County (unincorporated areas) | 6.00% | 5 |
| Sheridan County (unincorporated areas) | 6.00% | 12 |
| Sublette County (unincorporated areas) | 4.00% | 6 |
| Sweetwater County (unincorporated areas) | 6.00% | 12 |
| Teton County — unincorporated/special area | 7.00% | 1 |
| Teton County (unincorporated areas) | 7.00% | 7 |
| Uinta County (unincorporated areas) | 5.00% | 7 |
| Washakie County (unincorporated areas) | 5.00% | 2 |
| Weston County (unincorporated areas) | 5.00% | 6 |
Highest & lowest Wyoming rates
The ten highest and ten lowest distinct combined rates published anywhere in this data set.
Highest
| Jurisdiction | Rate |
|---|---|
| Teton County — unincorporated/special area | 7.00% |
| Carbon County (unincorporated areas) | 6.00% |
| Goshen County (unincorporated areas) | 5.25% |
| Casper | 5.00% |
| Park County (unincorporated areas) | 4.00% |
Lowest
| Jurisdiction | Rate |
|---|---|
| Park County (unincorporated areas) | 4.00% |
| Casper | 5.00% |
| Goshen County (unincorporated areas) | 5.25% |
| Carbon County (unincorporated areas) | 6.00% |
| Teton County — unincorporated/special area | 7.00% |
How Wyoming's rate is built
Every combined rate in the tables above starts from the same 4.00% statewide base component, per this data set. Wyoming's data doesn't record any special-district add-ons beyond the county/city layer itself — every jurisdiction's rate is just its own local rate on top of the state base.
Rate distribution across Wyoming
Every distinct combined rate published in this data set, and how many jurisdictions charge it.
| Combined Rate | Jurisdictions |
|---|---|
| 4.00% | 2 |
| 5.00% | 14 |
| 5.25% | 1 |
| 6.00% | 6 |
| 7.00% | 2 |
Where this data comes from
Rates come from the official Streamlined Sales and Use Tax Agreement (SSUTA) "Rate and Boundary" files that Wyoming, as an SST member state, is required to publish free to the public under SSUTA §§305 and 307 (streamlinedsalestax.org). Jurisdiction names (city, county, and county-subdivision) are matched against U.S. Census Bureau Gazetteer name files by FIPS code — this page invents no jurisdiction names of its own. The data set behind this page was last pulled 2026-08-04; SST posts updated files ahead of each calendar quarter and issues mid-quarter corrections when a jurisdiction changes its rate.
Need a single ZIP code instead of the full table? Use the sales tax rate by ZIP code lookup, or the general sales tax calculator for a quick estimate with grocery exemptions.
Compare with other states: South Dakota , Nebraska , Utah .
Frequently asked questions
What's the sales tax rate in Laramie County (unincorporated areas)?
Laramie County (unincorporated areas) has a combined sales tax rate of 5.00%, per the official Streamlined Sales Tax data as of 2026-08-04. It's the largest jurisdiction in this data set by ZIP-code coverage, used here as the best available size proxy since the SST files don't publish population figures.
Why do sales tax rates vary within the same ZIP code in Wyoming?
A combined rate is a stack, not a single number: the state's own component (4.00% per this data set) plus whatever the county, city, and any special district (transit, tourism, public safety) each add on top. ZIP codes were drawn by the Postal Service to route mail, not to follow city or county lines, so a single ZIP can straddle more than one of those taxing boundaries — which is why the ZIP-code calculator above sometimes shows a range instead of one figure.
How often is this Wyoming sales tax data updated?
The underlying data set was last pulled 2026-08-04. This site checks for a refresh monthly, but the Streamlined Sales Tax Governing Board itself only republishes member-state rate and boundary files on a quarterly cadence (ahead of each calendar quarter, with mid-quarter corrections when a jurisdiction changes its rate) — so most months there is nothing new to pull.
Are groceries taxed differently in Wyoming?
Statewide, Wyoming exempts groceries from the general sales tax (per Wyoming's own base-rate table) — none of the jurisdictions in this ZIP-level data set publish a separate reduced grocery rate distinct from that exemption.
Which Wyoming jurisdiction has the highest combined sales tax rate?
Teton County — unincorporated/special area (Teton County — unincorporated/special area), at 7.00% combined, per the official Streamlined Sales Tax data as of 2026-08-04. At the other end, Park County (unincorporated areas) sits at 4.00% — see the highest & lowest table below for the full top-10 spread each way.
Sources
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