Short-term kit
Air Chek Short-Term radon test kit you hang, lab fee included
- Lab fee included
In home: 72 to 168 hours
Locations and reports
Radon Levels in Daggett County, Utah
EPA puts Daggett County in Zone 2, its middle radon zone, and only 4 radon tests from it are 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
51.0%
Uintah County
- Uintah
- 51.0%
- Summit
- 32.6%
3 of 5 neighbours have 30+ tests, 2023
Nearest county
51.0%
Uintah County, 53 miles
- Uintah
- 51.0%
- Utah
- 36.1%
Share at 4+ pCi/L, 104 tests, 2023
Ground above low
100.0%
Level with Utah
- Daggett
- 100.0%
- Utah
- 100.0%
Share of land USGS rates moderate or high potential
Tests reported
4
Too few for a share
- Daggett
- 4
- Needed
- 30
2023
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Daggett 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
Daggett County, At a glance
Daggett County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Daggett County is a
USGS geologic potential: Moderate across 94% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Daggett County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2018 | 0.0% |
| 2023 | 50.0% |
2023: 50.0%. 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 4 tests were reported to CDC for Daggett 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: 2008 to 2023 (every CDC figure on file).
Daggett County, Compared
Daggett County radon figures, compared
Calculated by Radon411CDC's largest figure for Daggett County rests on 4 tests in 2023, 2 of them at or above 4 pCi/L, so each test moves its share by 25.0 points and no rank or comparison is drawn from it. Results reached as high as 25.4 pCi/L, with a middle value of 6.3 pCi/L.
Of the counties bordering it, 3 have a figure in 2023: Uintah County reported the largest share at or above 4 pCi/L, 51.0%, and Summit County the smallest, 32.6%, with Duchesne County at 39.5% between. Farther out, Wasatch County (95 miles away) at 51.9%, Carbon County (103 miles away) at 23.2% and Morgan County (109 miles away) at 59.4% 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 Daggett County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 94% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Daggett County, Geology
The ground under Daggett County
PredictedMost of the ground under Daggett County is one class on USGS's geologic map: 93.7% of its land is moderate radon potential, with 6.3% high. The map puts 93.6% of Daggett County in the area it calls Uinta Mountains and 6.3% in Northern Rocky Mountains. USGS gives the first a radon index of 10, in the moderate band (9 to 11), and the second 13, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Uinta Mountains | Cretaceous marine shales with Tertiary continental sedimentary rocks on the southern flank. | Moderate | 10 | 93.6% |
| Northern Rocky Mountains | Tertiary sandstone, mudstone, limestone. | High | 13 | 6.3% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Daggett County beside the ground around it
Utah as a whole has more high-potential ground than Daggett County: 32.8% of its land, against 6.3% here. Every one of the 5 counties that border it has more high-potential ground, Sweetwater County, WY the most at 99.6%.
The map rates the ground, not the air in any home.
Local help
Daggett County, Local resources
Radon testing and mitigation in Daggett 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
Daggett County, Questions
Questions about radon in Daggett County
Are radon levels high in Daggett County?
In 2023, 50.0% of the radon tests reported to CDC for Daggett County, Utah were at or above 4 pCi/L, and the median reported pre-mitigation result was 6.3 pCi/L. Of the counties bordering it, 3 have a figure in 2023: Uintah County reported the largest share at or above 4 pCi/L, 51.0%, and Summit County the smallest, 32.6%, with Duchesne County at 39.5% between.
Which counties border Daggett County?
Daggett County borders 5 counties: Summit County, UT, Duchesne County, UT, Uintah County, UT, Sweetwater County, WY and Moffat County, CO.
Products
Daggett County, Products
Testing a home in Daggett County
No CDC figure names Daggett County; the nearest county with one, Uintah County (53 miles away), reported 51.0% of its tests at or above 4 pCi/L in 2023, the only reading nearby until a test of this home. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Daggett County; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Monitor
RadonScan USB-powered radon monitor with a color screen
- C-NRPP 2024/25: Not included
- Plug-in
- Alarm
- Screen
First reading: Within 5 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Daggett County, Bordering counties
Counties bordering Daggett County
Calculated by Radon411- Radon levels in Uintah County, UTEPA zone 1
51.0%at or above 4 pCi/L
Median 4.2 pCi/L · 104 tests
- Radon levels in Duchesne County, UTEPA zone 1
39.5%at or above 4 pCi/L
Median 3.2 pCi/L · 81 tests
- Radon levels in Summit County, UTEPA zone 2
32.6%at or above 4 pCi/L
Median 2.4 pCi/L · 417 tests
- Radon levels in Moffat County, COEPA zone 1
30.8%at or above 4 pCi/L
Median 2.4 pCi/L · 13 tests
- Radon levels in Sweetwater County, WYEPA zone 1
No CDC figure for 2023; its page reads it against its own neighbours.
Daggett County, Cities and towns
Cities and towns in Daggett County
About 934 people live in Daggett County by the Census Bureau's estimate for July 1, 2025, 17 fewer than in 2020 (−1.8%). Spread over its land, that is 1.3 people to the square mile. Its largest town, Manila, has 317 residents, 33.9% of the total. Together its 2 incorporated places hold 48.4% of those residents; the other 51.6% live outside any of them. Reported testing is thin here: 4 tests over 2023, or 4.3 for every 1,000 residents (2025 estimate), where Utah as a whole comes to 7.7.
From Manila to Dutch John, CDC publishes no figure by town: each reads Daggett County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Manila | 317 | +1.0% | 33.9% |
| Dutch John | 135 | −4.3% | 14.5% |
2 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).
Daggett County, Homes
Homes in Daggett County
Of Daggett County's 1,155 homes, 58% are detached houses, against 67% across Utah; 42% are mobile homes. The homes are older than Utah's as a whole: half were built before 1980 (1991 for Utah), and 6% date from before 1960. Owners live in 83% of the occupied homes (Utah: 71%), so for most households a test and a fix are their own to order.
| Homes | Daggett County | Utah |
|---|---|---|
| Housing units | 1,155 | 1,193,082 |
| Detached houses | 58% | 67% |
| In buildings of 5 or more | 0% | 16% |
| Mobile homes | 42% | 3% |
| Built before 1960 | 6% | 16% |
| Built since 2000 | 28% | 37% |
| Middle year built | 1980 | 1991 |
| Owner-occupied | 83% | 71% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.