Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Locations and reports
Radon Levels in Piute County, Utah
EPA puts Piute County in Zone 1, its highest radon zone, and only 1 radon test from it is on file with CDC (2023). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
66.7%
Beaver County
- Beaver
- 66.7%
- Sevier
- 57.4%
2 of 4 neighbours have 30+ tests, 2023
Nearest county
57.4%
Sevier County, 33 miles
- Sevier
- 57.4%
- Utah
- 36.1%
Share at 4+ pCi/L, 101 tests, 2023
Ground above low
100.0%
Level with Utah
- Piute
- 100.0%
- Utah
- 100.0%
Share of land USGS rates moderate or high potential
Tests reported
3
Too few for a share
- Piute
- 3
- Needed
- 30
2022
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Read a result for Piute County
Starts at EPA's action level
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 4.0 pCi/L
At or above 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher.
The data
Piute County, At a glance
Piute County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Piute County in
USGS geologic potential: High across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Piute County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2015 | 50.0% |
| 2016 | 0.0% |
| 2017 | 0.0% |
| 2022 | 0.0% |
| 2023 | 0.0% |
2023: 0.0%. Across these years the share ran from 0.0% to 50.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 1 test was reported to CDC for Piute County over 2023, and tests are often run on homes being sold or already suspected of a problem: so few describe neither the county nor this house.
Measured: CDC tracking data. Figure above: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).
Piute County, Compared
Piute County radon figures, compared
Calculated by Radon411CDC's largest figure for Piute County rests on 3 tests in 2022, 0 of them at or above 4 pCi/L, so each test moves its share by 33.3 points and no rank or comparison is drawn from it. Results reached as high as 0.7 pCi/L, with a middle value of 0.7 pCi/L.
Of the counties bordering it, 2 have a figure in 2023: Beaver County reported the largest share at or above 4 pCi/L, 66.7%, and Sevier County the smallest, 57.4%. Farther out, Iron County (71 miles away) at 21.1%, Millard County (73 miles away) at 58.2% and Sanpete County (77 miles away) at 60.0% have figures too. Pooled across 29 Utah counties, 36.1% of reported tests reached that level; across every county in the country with a figure, 33.4%.
Statewide for the same period, Beaver County reported the highest share (66.7%) and Washington County the lowest (9.9%). EPA's 1993 map puts Piute County in Zone 1, the map's highest label: a predicted county average above 4 pCi/L. USGS geology rates 100% of the county's land high radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Piute County, Geology
The ground under Piute County
PredictedUSGS's geologic map puts all of Piute County's mapped land in one class: high radon potential. All of it lies in the area the map calls High Plateau, to which USGS gives a radon index of 13, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| High Plateau | Tertiary volcanic and volcaniclastic rocks. | High | 13 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Piute County beside the ground around it
Piute County has more high-potential ground than Utah as a whole: 100% of its land against 32.8%. Of the 4 counties that border it, none has as large a share of high-potential ground; Sevier County comes nearest at 96.7%.
The map rates the ground, not the air in any home.
Local help
Piute County, Local resources
Radon testing and mitigation in Piute County
- Indoor Radon ProgramIndoor Radon Program, run by Utah Department of Environmental Quality, states the rule for disclosing radon when a home is sold, and answers questions about testing and mitigation in Utah.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- See the Utah directoryNo professionals are listed in Utah yet. The state program can point you to registered testers and mitigators.
What Utah's program says
- Phone
- (801) 536-0091
- Disclosure when a home is sold or rented
Utah requires that sellers disclose "Hazardous Conditions: Are there any hazardous conditions on the Property such as Radon gas in house or well?"
What it means
Piute County, Questions
Questions about radon in Piute County
Are radon levels high in Piute County?
In 2023, 0.0% of the radon tests reported to CDC for Piute County, Utah were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.3 pCi/L. Of the counties bordering it, 2 have a figure in 2023: Beaver County reported the largest share at or above 4 pCi/L, 66.7%, and Sevier County the smallest, 57.4%.
Which counties border Piute County?
Piute County borders 4 counties: Sevier County, Garfield County, Beaver County and Wayne County.
Products
Piute County, Products
Testing a home in Piute County
No CDC figure names Piute County; the nearest county with one, Sevier County (33 miles away), reported 57.4% of its tests at or above 4 pCi/L in 2023, the only reading nearby until a test of this home. In Zone 1 the year-round level in Piute County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.
Test kits and monitors3
See every kit and monitor
Monitor
Corentium Home battery digital radon detector
- C-NRPP 2024/25: Approved
- Battery
- Screen
Method: Alpha spectrometry
Short-term kit
RA400 short-term liquid scintillation radon test kit, lab fee included
- Lab fee included
Method: Liquid scintillation
In home: 48 to 96 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Piute County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Piute County
Explore
Piute County, Bordering counties
Counties bordering Piute County
Calculated by Radon411- Radon levels in Wayne CountyEPA zone 2
70.4%at or above 4 pCi/L
Median 5.5 pCi/L · 27 tests
- Radon levels in Beaver CountyEPA zone 2
66.7%at or above 4 pCi/L
Median 9.3 pCi/L · 42 tests
- Radon levels in Sevier CountyEPA zone 1
57.4%at or above 4 pCi/L
Median 4.9 pCi/L · 101 tests
- Radon levels in Garfield CountyEPA zone 2
40.0%at or above 4 pCi/L
Median 3.7 pCi/L · 15 tests
Piute County, Cities and towns
Cities and towns in Piute County
The Census Bureau estimates 1,509 residents in Piute County for July 1, 2025, 69 more than in 2020 (+4.8%). Spread over its land, that is 2.0 people to the square mile. Its largest town, Circleville, has 517 residents, 34.3% of the total. Together its 4 incorporated places hold 88.4% of those residents; the other 11.6% live outside any of them. Reported testing is thin here: 3 tests over 2022, or 2.0 for every 1,000 residents (2025 estimate), where Utah as a whole comes to 11.6.
From Circleville to Kingston, CDC publishes no figure by town: each reads Piute County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Circleville | 517 | −5.5% | 34.3% |
| Marysvale | 485 | +34.3% | 32.1% |
| Junction | 203 | −4.2% | 13.5% |
| Kingston | 129 | −5.1% | 8.5% |
4 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).
Piute County, Homes
Homes in Piute County
Piute County is a place of houses on their own lots: 88% of its 892 homes are detached single-family houses, against 67% across Utah. The homes are older than Utah's as a whole: half were built before 1976 (1991 for Utah), and 36% date from before 1960. Owners live in 93% of the occupied homes (Utah: 71%), so for most households a test and a fix are their own to order.
| Homes | Piute County | Utah |
|---|---|---|
| Housing units | 892 | 1,193,082 |
| Detached houses | 88% | 67% |
| In buildings of 5 or more | 0% | 16% |
| Mobile homes | 10% | 3% |
| Built before 1960 | 36% | 16% |
| Built since 2000 | 28% | 37% |
| Middle year built | 1976 | 1991 |
| Owner-occupied | 93% | 71% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.