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Radon in Ivins, Utah

EPA puts Washington County, where Ivins is, in Zone 2, its middle radon zone, and most reported tests there come back low, though 9.9% of 657 (2023) reached 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

How to test this homeFind a certified tester

  • Share at 4+ pCi/L

    9.9%

    26.2 pts below UT

    Washington
    9.9%
    Utah
    36.1%

    Washington, 22nd of 22 in UT, 2023

  • Median result

    1.3pCi/L

    Below action level

    Washington
    1.3 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of Washington's tests, 2023

  • Nearest county

    21.1%

    Iron, 52 miles

    Iron
    21.1%
    Washington
    9.9%

    213 tests, 2023

  • EPA radon zone

    Zone 2

    Moderate potential

    1. 1
    2. Zone 2
    3. 3

    1 highest, 3 lowest

    Washington, where Ivins is

  • Tests reported

    657

    In Washington

    Washington
    657
    Iron
    213

    Reported to CDC before any fix, 2023

Read a result for Ivins

Starts at Washington County's median, 1.3 pCi/L

1.3pCi/L

EPA’s own thresholds; the figures are the area’s, never this home’s.

EPA’s reading of 1.3 pCi/L

Below 2 pCi/L

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 4 and aboveEPA says fix it

This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Washington County's median reported result, 2023.

Interpret this reading

The data

Ivins, What is published

What is published for Ivins

Information:

Every figure for Ivins is a county's

Radon data is published by county, not by city, so for Ivins it is Washington County's: its EPA zone (Zone 2) and the 657 tests reported to CDC for 2023. Only a test tells you about one home.

Ivins covers 9.4 square miles of land, all of it in Washington County. About 11,546 people live there, 1,223 to the square mile.

Ivins, Counties

The county Ivins lies in

Measured

Washington County's EPA zone and the figures CDC publishes for it, 2023.

Washington CountyZone 2Moderate predicted potential

9.9%
Reported tests at or above 4 pCi/L
1.3 pCi/L
Median reported result
657 tests
Tests reported to CDC
10
Annual years on file

Washington County ranks 22nd of 22 Utah counties with 30 or more tests for that period, 26.2 points below the 36.1% pooled across Utah's counties, 23.5 points below the national pool of 33.4%.

Measured from the middle of Ivins, the nearest counties with a CDC figure for 2023 are Iron County (52 miles, 21.1% of 213 tests), Beaver County (85 miles, 66.7% of 42 tests) and Millard County (135 miles, 58.2% of 55 tests). Across the 8 nearest, the share at or above 4 pCi/L runs from 21.1% to 66.7%; the farthest of them, Tooele County, is 228 miles away at 51.0%.

No business in the directory gives Ivins as its address; the Utah list covers it. Utah's other cities with a page of their own: Salt Lake City.

The counties around Ivins

By distance from the middle of Ivins; counties with 30 or more tests.

Nearest counties to Ivins with 30 or more tests
CountyDistanceTestsAt or above 4 pCi/LMedian
Iron County52 mi21321.1%2.1 pCi/L
Beaver County85 mi4266.7%9.3 pCi/L
Millard County135 mi5558.2%4.4 pCi/L
Sevier County149 mi10157.4%4.9 pCi/L
Juab County181 mi4963.3%5.0 pCi/L
Sanpete County190 mi15060.0%4.6 pCi/L
Emery County205 mi3938.5%2.7 pCi/L
Tooele County228 mi57351.0%4.1 pCi/L

Predicted: EPA Map of Radon Zones, by county. Measured: CDC tracking data, by county, 2023.

Ivins, Geology

The ground under Ivins

Predicted

USGS's geologic map puts all of Ivins' mapped land in one class: moderate radon potential. All of it lies in the area the map calls Colorado Plateau, to which USGS gives a radon index of 9, in the moderate band (9 to 11).

USGS's geologic areas under Ivins
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Colorado PlateauPaleozoic and Mesozoic sandstone, shale, limestone.Moderate9100%

Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.

Ivins beside its county and Utah

The ground under Ivins is close to Washington County's as a whole: 100% rated moderate against 99.7%. Across Utah 32.8% of the land is rated high; none of Ivins' is.

Share of land by USGS radon potential: Ivins, the county it lies in and Utah
AreaEPA zoneLow potentialModerate potentialHigh potential
IvinsBy countyNone100%None
Washington CountyZone 20.3%99.7%None
Utah29 counties, pooled by land areaVariesNone67.2%32.8%

The map rates the ground, not the air in any home.

Ivins, Homes

Homes in Ivins

Ivins is a place of houses on their own lots: 91% of its 4,397 homes are detached single-family houses, against 74% across Washington County. Half of its homes were built before 2004, close to Washington County's 2002: 0% date from before 1960 and 60% from 2000 or later. Owners live in 78% of the occupied homes (Washington County: 73%), so for most households a test and a fix are their own to order.

Homes in Ivins, Washington County, Utah, 2019 to 2023
HomesIvinsWashington CountyUtah
Housing units4,39778,9931,193,082
Detached houses91%74%67%
In buildings of 5 or more2%9%16%
Mobile homes3%4%3%
Built before 19600%3%16%
Built since 200060%55%37%
Middle year built200420021991
Owner-occupied78%73%71%

Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.

Local help

Ivins, Local resources

Local resources for Ivins

Who to ask in Utah: its radon program, test kits and professionals.

The program's own words on licensing and disclosure are on the Utah page.

What it means

Ivins, Questions

Questions about radon in Ivins

What radon zone is Ivins in?

Ivins has no zone of its own: it shares Washington County's, Zone 2, the map's middle class: a predicted county average of 2 to 4 pCi/L.

What are radon levels in Ivins?

Reported levels around Ivins run low: 9.9% of 657 tests from Washington County for 2023 reached 4 pCi/L. The median reported result was 1.3 pCi/L. Low is not none.

Should I test my home in Ivins?

Yes, even here. Washington County reported 65 of 657 tests at or above 4 pCi/L. That is below Utah's pooled 36.1%, and still not a reason to skip it, and ranks Washington County 22nd of the 22 Utah counties with 30 or more tests. Testing found those homes; the county's low share did not. How to test a home.

What ground is Ivins built on, as far as radon goes?

USGS's geologic map puts all of Ivins on one named area, "Colorado Plateau", rated moderate for radon potential, radon index 9.

Is radon higher in the counties around Ivins?

Higher, in every direction measured: all 8 of the nearest counties with a figure report a larger share of high tests than Washington County's 9.9%, up to Beaver County (66.7%, 85 miles off).

The answers use the published figures of Washington County, the county Ivins lies in.

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