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Radon Levels in Kane County, Utah

Zone 2Moderate predicted potential4,112 square miles · 6 bordering counties

What this means for you

  • Your area: EPA rates Kane County Zone 2, the middle of its three radon zones. That is a prediction for the whole county, and homes with elevated levels occur in all three zones.
  • Local tests: Of 19 radon tests reported to CDC for Kane County (2023), 15.8% were at or above 4 pCi/L, EPA's action level.
  • Your home: The only way to know your home’s level is to test it.

pCi/L (picocuries per liter) is the unit radon is measured in. EPA recommends fixing a home at 4 pCi/L or above, its action level.

In 2023, 15.8% of the radon tests reported to CDC for Kane County, Utah came back at or above the EPA action level of 4 pCi/L, and the median result was 1.8 pCi/L. EPA's Map of Radon Zones places the county in Zone 2, moderate predicted potential. Radon levels vary from home to home, so only a test measures the level in yours.

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

EPA predicts an average indoor of 2 to 4 pCi/L (75 to 150 Bq/m³) across the county as a whole.

This is a county-level geologic prediction. It is not a measurement of any address, and houses with elevated radon are found in all three zones.

USGS geologic potential: Moderate across 96% of the county's land area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Kane County, 2023

Tests reported
19
At or above 4 pCi/L
15.8%
Median result
1.8 pCi/L
Reported results by concentration band, Kane County, 2023
Under 2 pCi/L: 58%2 to 4 pCi/L: 26%4 pCi/L and above: 16%

Of 19 pre-mitigation tests reported to CDC, not homes in this area. CDC publishes the share in each band, not a count per band, so the per-band counts in the table are calculated by Radon411 and rounded to add up to the published total.

Reported results by concentration band, Kane County, 2023: data table
Result bandTests Calculated by Radon411Share Measured
Under 2 pCi/L1157.9%
2 to 4 pCi/L526.3%
4 pCi/L and above315.8%

Distribution of tested buildings, not this house. People testing before a sale, or because they suspect a problem, are over-represented in any reported testing data.

Measured: CDC tracking data. Figure above: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).

Kane County, In figures

Kane County in figures

What the published data says about Kane County, in words. A zone and a share of tests describe an area, never the level in any one home.

    • Predicted

      Predicted

      EPA places Kane County in Zone 2, moderate predicted potential, as it does 21 other counties of Utah's 29.

      Of the 6 bordering counties, EPA places Coconino County, Garfield County, Iron County, Mohave County, San Juan County and Washington County in Zone 2.

  • Reported tests

    Measured

    CDC has annual figures for Kane County for 9 years, 2014 to 2023. In 2023, 15.8% of 19 reported tests were at or above 4 pCi/L.

    Across those years the share ranged from 0.0% (2021) to 50.0% (2015). Few tests in a year can move it a long way.

  • Local record

    Utah's radon program is the Indoor Radon Program, run by Utah Department of Environmental Quality; its contacts are under Local resources.

    The county's largest incorporated places are Kanab, Orderville and Big Water; the figures here cover them as part of the county.

Kane County, Reported testing

Reported testing over time

Measured
Reported radon test results by year, Kane County, pCi/LLogarithmic scale: each step up the axis multiplies the level, so the median and the single highest result can share one chart. The darker gridline is EPA's action level, 4 pCi/L.
Median reported resultHighest reported result
Reported radon test results by year, Kane County, pCi/L: data table
YearMedian reported resultHighest reported resultShare of tests at or above 4 pCi/L
20143.4 pCi/L4.3 pCi/L25.0%
20153.9 pCi/L21.5 pCi/L50.0%
20162.2 pCi/L22.2 pCi/L13.6%
20172.1 pCi/L23.3 pCi/L12.5%
20183.3 pCi/L26.1 pCi/L43.8%
2019No dataNo dataNo data
20201.2 pCi/L6.8 pCi/L25.0%
20212.4 pCi/L2.7 pCi/L0.0%
20221.4 pCi/L5.5 pCi/L28.6%
20231.8 pCi/L16.1 pCi/L15.8%

What these figures count

Every percentage here is a share of radon tests reported to CDC for Kane County in 2023. It is not a share of homes in Kane County, and it is not a random sample: it counts only the tests people chose to run and that were reported.

The shares and the median are calculated from pre-mitigation tests (19 for 2023).

Kane County, Comparison

How Kane County compares

Measured

Kane County's own published CDC figures beside those of the counties that border it, for the same period.

Share of reported tests at or above 4 pCi/L

Measured

2023, highest first. Each county’s own published CDC figure.

  1. San Juan CountyUT19 tests52.6%
  2. Garfield CountyUT15 tests40.0%
  3. Iron CountyUT213 tests21.1%
  4. Kane CountyThis page19 tests15.8%
  5. Washington CountyUT657 tests9.9%

Median reported result

Measured

2023, highest first. Each county’s own published CDC figure.

  1. San Juan CountyUT19 tests4.0 pCi/L
  2. Garfield CountyUT15 tests3.7 pCi/L
  3. Iron CountyUT213 tests2.1 pCi/L
  4. Kane CountyThis page19 tests1.8 pCi/L
  5. Washington CountyUT657 tests1.3 pCi/L

Each figure is that county’s own published CDC figure for 2023, counting radon tests reported to CDC, not homes. Kane County is this page. Nothing is averaged or combined across counties. The test count beside each county is CDC’s published number of pre-mitigation tests behind its figures. Figures from few tests can swing widely from year to year. No published CDC figure for 2023: Coconino County, AZ; Mohave County, AZ. Every Utah county’s own figure is in the Utah county table.

CDC publishes this figure only for counties here, so there is no state or national number to compare Kane County, Utah with.

Kane County, Bordering counties

Counties bordering Kane County

Calculated by Radon411

6 counties share a boundary with Kane County, computed from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county’s report can be worth reading alongside this one.

Kane County, Local resources

Local resources in Utah

Who to ask in Utah: the state's radon program, test kits and professionals.

Indoor Radon Program

Utah Department of Environmental Quality

Utah’s radon program answers questions about testing, mitigation and the rules where you live.

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?"
Visit the program's page(opens in a new tab)

Test kits

Ask the program whether it has free or discounted kits, or compare kits you can buy.

Radon professionals

No professionals are listed in Utah yet. The state program can point you to registered testers and mitigators.

See the Utah directory

Kane County, Cities and towns

Cities and towns in Kane County

The radon figures on this page are for Kane County as a whole. They do not differ by city or town.

  • Kanab
  • Orderville
  • Big Water
  • Glendale
  • Alton

5 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files.

Kane County, Questions

Questions about radon in Kane County

Common questions8 questions, answered from the figures above

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. That is a share of reported tests, not of homes. EPA places Kane County in Zone 2, moderate predicted potential, a predicted average indoor screening level 2 to 4 pCi/L. Homes with elevated levels occur in all three zones, so the figures describe the area, not your house. Testing is the only way to know the radon level in a specific building.

What a radon level meansRadon in Utah

How do I get a radon test in Kane County?

EPA says you can test your home yourself or hire a qualified radon test company, and that either approach takes only a small amount of time and effort. No certified tester listed on Radon411 names Kane County as a service area yet. The Utah radon program is the place to ask about certified testers and any test kit offer it runs.

How to test a homeTest kits comparedFree and low-cost kits by stateUtah radon program

Who does radon mitigation in Kane County?

Radon411 has no certified mitigators listed for Utah yet. EPA recommends having a qualified contractor fix a home with a radon problem, because lowering high radon levels takes technical knowledge and special skills, and some states require the work to be done by a licensed or certified professional. Your state radon program is the place to check whether Utah requires one.

How radon mitigation worksWhat mitigation costsUtah radon program

What EPA radon zone is Kane County in?

EPA places Kane County, Utah in Zone 2, which EPA describes as moderate predicted potential for the area. A zone is a prediction for the whole county and never determines whether a particular home should be tested. EPA recommends testing every home regardless of zone.

Should I test my home in Kane County?

Yes. Testing is the only way to know the radon level in a specific building. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. How to test a home.

When is the best time of year to test?

EPA says short-term tests stay in the home from 2 to 90 days and that all radon tests should run a minimum of 48 hours; long-term tests stay more than 90 days. EPA's guides do not name a best season: they say radon levels tend to vary from day to day and season to season, so a long-term test is more likely than a short-term test to tell you the year-round average.

What does it cost to test?

EPA's Citizen's Guide calls testing easy and inexpensive, and EPA's Home Buyer's and Seller's Guide says passive short-term and long-term devices are generally inexpensive, while active devices may cost more. No national average price is published for this, so Radon411 does not give one. What testing costs.

Which counties border Kane County?

Kane County borders 6 counties, derived from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county's report can be relevant.

What these figures mean if you own, buy, sell or rent

The reported-test figures on this page describe Kane County, Utah in 2023. They describe tests other people carried out in other buildings, and none of them measures yours.

  • If you own your home

    Test the lowest lived-in level; a short-term kit screens in days, a long-term kit reflects the year.

    How to test a home
  • If you are buying

    Ask for past results and any system's post-mitigation test, and test during the sale.

    Buying a house: radon guide
  • If you are selling

    Testing before you list puts the timing in your hands; disclosure rules differ by state.

    Selling a house: radon guide
  • If you rent, or rent out a home

    A tenant can test; a fix is the owner's to make, and duties differ by state.

    Radon in rental homes

How long a test has to run, under what conditions, and what EPA says a result means: the testing standard, in full.

Kane County, Products

Testing and mitigation products

Whatever the figures for Kane County show, only a test tells you about one home.

Kane County / Next steps

What to do next

Informational. Follow EPA guidance. EPA says all radon tests should be taken for a minimum of 48 hours, with windows and doors closed from 12 hours before a short-term test.