Radon levels in Wyoming

Verified county-level radon indicators are available for 23 Wyoming counties. Select a county for its source period and sample details.

High results are most common in Sheridan County (70%) and least common in Uinta County (25%)Share of tests at or above 4 pCi/L by county · Radon test results from laboratories, 2008–2017 · 23 of 23 counties have data
Albany County: 28% of tests at or above 4 pCi/L · 394 testsBig Horn County: 42% of tests at or above 4 pCi/L · 99 testsCampbell County: 44% of tests at or above 4 pCi/L · 271 testsCarbon County: 41% of tests at or above 4 pCi/L · 80 testsConverse County: 62% of tests at or above 4 pCi/L · 130 testsCrook County: 59% of tests at or above 4 pCi/L · 51 testsFremont County: 56% of tests at or above 4 pCi/L · 618 testsGoshen County: 42% of tests at or above 4 pCi/L · 168 testsHot Springs County: 56% of tests at or above 4 pCi/L · 59 testsJohnson County: 35% of tests at or above 4 pCi/L · 135 testsLaramie County: 26% of tests at or above 4 pCi/L · 1,834 testsLincoln County: 68% of tests at or above 4 pCi/L · 142 testsNatrona County: 56% of tests at or above 4 pCi/L · 1,054 testsNiobrara County: 25% of tests at or above 4 pCi/L · 12 testsPark County: 43% of tests at or above 4 pCi/L · 505 testsPlatte County: 27% of tests at or above 4 pCi/L · 132 testsSheridan County: 70% of tests at or above 4 pCi/L · 846 testsSublette County: 50% of tests at or above 4 pCi/L · 60 testsSweetwater County: 50% of tests at or above 4 pCi/L · 409 testsTeton County: 45% of tests at or above 4 pCi/L · 278 testsUinta County: 25% of tests at or above 4 pCi/L · 199 testsWashakie County: 38% of tests at or above 4 pCi/L · 130 testsWeston County: 66% of tests at or above 4 pCi/L · 32 tests
  • Under 10%
  • 10–20%
  • 20–30%
  • 30–40%
  • 40% or more
  • No data

Counties

CountyTests% ≥ 4 pCi/LMedian (pCi/L)EPA zone (1993)Source
Albany County39428%2.7Zone 1Radon test results from laboratories through 2017
Big Horn County9942%3.5Zone 1Radon test results from laboratories through 2017
Campbell County27144%3.5Zone 1Radon test results from laboratories through 2017
Carbon County8041%3.0Zone 1Radon test results from laboratories through 2017
Converse County13062%4.8Zone 1Radon test results from laboratories through 2017
Crook County5159%5.1Zone 1Radon test results from laboratories through 2017
Fremont County61856%4.7Zone 1Radon test results from laboratories through 2017
Goshen County16842%3.3Zone 1Radon test results from laboratories through 2017
Hot Springs County5956%4.2Zone 1Radon test results from laboratories through 2017
Johnson County13535%3.1Zone 1Radon test results from laboratories through 2017
Laramie County1,83426%2.5Zone 1Radon test results from laboratories through 2017
Lincoln County14268%7.8Zone 1Radon test results from laboratories through 2017
Natrona County1,05456%4.3Zone 1Radon test results from laboratories through 2017
Niobrara County1225%3.5Zone 1Radon test results from laboratories through 2017
Park County50543%3.4Zone 1Radon test results from laboratories through 2017
Platte County13227%2.4Zone 2Radon test results from laboratories through 2017
Sheridan County84670%5.8Zone 1Radon test results from laboratories through 2017
Sublette County6050%4.0Zone 1Radon test results from laboratories through 2017
Sweetwater County40950%3.9Zone 1Radon test results from laboratories through 2017
Teton County27845%3.4Zone 1Radon test results from laboratories through 2017
Uinta County19925%2.2Zone 1Radon test results from laboratories through 2017
Washakie County13038%3.2Zone 1Radon test results from laboratories through 2017
Weston County3266%6.3Zone 2Radon test results from laboratories through 2017

Test your home

County figures show how often tests come back high, not the level in your home. Only a test tells you that: see how to test for radon.

Sponsored: we earn a commission on purchases through these links. We haven't tested Airthings monitors yet.

Prefer a digital monitor? See Airthings radon monitors, or enter code radonbycounty-10OFF at their discount store for 10% off.