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
Locations and reports
Radon Levels in Kane County, Utah
EPA puts Kane County in Zone 2, its middle radon zone, and only 19 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
21.1%
Iron County
- Iron
- 21.1%
- Washington
- 9.9%
2 of 6 neighbours have 30+ tests, 2023
Nearest county
21.1%
Iron County, 87 miles
- Iron
- 21.1%
- Utah
- 36.1%
Share at 4+ pCi/L, 213 tests, 2023
Ground above low
100.0%
Level with Utah
- Kane
- 100.0%
- Utah
- 100.0%
Share of land USGS rates moderate or high potential
Tests reported
22
Too few for a share
- Kane
- 22
- Needed
- 30
2016
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 Kane 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
Kane County, At a glance
Kane County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Kane County is a
USGS geologic potential: Moderate across 96% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Kane County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 25.0% |
| 2015 | 50.0% |
| 2016 | 13.6% |
| 2017 | 12.5% |
| 2018 | 43.8% |
| 2020 | 25.0% |
| 2021 | 0.0% |
| 2022 | 28.6% |
| 2023 | 15.8% |
2023: 15.8%. 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 19 tests were reported to CDC for Kane 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).
Kane County, Compared
Kane County radon figures, compared
Calculated by Radon411CDC's largest figure for Kane County rests on 22 tests in 2016, 3 of them at or above 4 pCi/L, so each test moves its share by 4.5 points and no rank or comparison is drawn from it. Results reached as high as 22.2 pCi/L, with a middle value of 2.2 pCi/L.
Of the counties bordering it, 2 have a figure in 2023: Iron County reported the largest share at or above 4 pCi/L, 21.1%, and Washington County the smallest, 9.9%. Farther out, Sevier County (101 miles away) at 57.4%, Beaver County (104 miles away) at 66.7% and Emery County (135 miles away) at 38.5% 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 Kane County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 96% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Kane County, Geology
The ground under Kane County
PredictedMost of the ground under Kane County is one class on USGS's geologic map: 96.3% of its land is moderate radon potential, with 3.7% high. The map puts 94.1% of Kane County in the area it calls Colorado Plateau and 3.7% in High Plateau, with one smaller area beside them. USGS gives the first a radon index of 9, 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 |
|---|---|---|---|---|
| Colorado Plateau | Paleozoic and Mesozoic sandstone, shale, limestone. | Moderate | 9 | 94.1% |
| High Plateau | Tertiary volcanic and volcaniclastic rocks. | High | 13 | 3.7% |
| Colorado Plateau | Paleozoic sadstone, shale, and limestones, some Precambrian gneiss, metasedimentary rocks, granites. | Moderate | 9 | 2.1% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Kane County beside the ground around it
Utah as a whole has more high-potential ground than Kane County: 32.8% of its land, against 3.7% here. Of the 6 counties that border it, 3 have more high-potential ground, Iron County the most at 36.3%.
The map rates the ground, not the air in any home.
Local help
Kane County, Local resources
Radon testing and mitigation in Kane 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
Kane County, Questions
Questions about radon in Kane County
Are radon levels high in Kane County?
In 2023, 15.8% of the radon tests reported to CDC for Kane County, Utah were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.8 pCi/L. Of the counties bordering it, 2 have a figure in 2023: Iron County reported the largest share at or above 4 pCi/L, 21.1%, and Washington County the smallest, 9.9%.
Which counties border Kane County?
Kane County borders 6 counties: Garfield County, UT, Iron County, UT, Washington County, UT, Coconino County, AZ, San Juan County, UT and Mohave County, AZ.
Products
Kane County, Products
Testing a home in Kane County
No CDC figure names Kane County; the nearest county with one, Iron County (87 miles away), reported 21.1% 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 Kane County; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
Monitor
Hello Radon C battery radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Screen
Method: Alpha spectrometry
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Kane County, Bordering counties
Counties bordering Kane County
Calculated by Radon411- Radon levels in San Juan County, UTEPA zone 2
52.6%at or above 4 pCi/L
Median 4.0 pCi/L · 19 tests
- Radon levels in Garfield County, UTEPA zone 2
40.0%at or above 4 pCi/L
Median 3.7 pCi/L · 15 tests
- Radon levels in Iron County, UTEPA zone 2
21.1%at or above 4 pCi/L
Median 2.1 pCi/L · 213 tests
- Radon levels in Washington County, UTEPA zone 2
9.9%at or above 4 pCi/L
Median 1.3 pCi/L · 657 tests
- Radon levels in Coconino County, AZEPA zone 2
No CDC figure for 2023; its page reads it against its own neighbours.
- Radon levels in Mohave County, AZEPA zone 2
No CDC figure for 2023; its page reads it against its own neighbours.
Kane County, Cities and towns
Cities and towns in Kane County
Kane County is growing: the Census Bureau puts it at 8,597 residents on July 1, 2025, up 11.7% from 7,697 in 2020. Spread over its land, that is 2.2 people to the square mile. Kanab alone is home to 5,332 of them, 62.0% of the total. Together its 5 incorporated places hold 80.6% of those residents; the other 19.4% live outside any of them. CDC's 22 reported tests for 2016 work out to 2.6 per 1,000 residents (2025 estimate), close to Utah's 2.5.
From Kanab to Alton, CDC publishes no figure by town: each reads Kane County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Kanab | 5,332 | +13.1% | 62.0% |
| Orderville | 602 | +1.0% | 7.0% |
| Big Water | 532 | +19.3% | 6.2% |
| Glendale | 339 | +9.4% | 3.9% |
| Alton | 120 | +0.8% | 1.4% |
5 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).
Kane County, Homes
Homes in Kane County
Kane County is a place of houses on their own lots: 85% of its 6,264 homes are detached single-family houses, against 67% across Utah. Half of its homes were built before 1994, close to Utah's 1991: 9% date from before 1960 and 36% from 2000 or later. Owners live in 82% of the occupied homes (Utah: 71%), so for most households a test and a fix are their own to order.
| Homes | Kane County | Utah |
|---|---|---|
| Housing units | 6,264 | 1,193,082 |
| Detached houses | 85% | 67% |
| In buildings of 5 or more | 2% | 16% |
| Mobile homes | 10% | 3% |
| Built before 1960 | 9% | 16% |
| Built since 2000 | 36% | 37% |
| Middle year built | 1994 | 1991 |
| Owner-occupied | 82% | 71% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.