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Radon Levels in Searcy County, Arkansas

EPA puts Searcy County in Zone 2, its middle radon zone, and only 4 radon tests from it are on file with CDC (2008 to 2017, laboratory totals). Homes with elevated levels occur in all three zones, so only a test measures yours.

Data checked By Radon411Methodology

  • Nearest county

    6.8%

    Pulaski County, 82 miles

    Pulaski
    6.8%
    Arkansas
    22.7%

    Share at 4+ pCi/L, 103 tests, 2007 to 2016

  • Ground above low

    73.5%

    52.2 pts above Arkansas

    Searcy
    73.5%
    Arkansas
    21.3%

    Share of land USGS rates moderate or high potential

  • Tests reported

    4

    Too few for a share

    Searcy
    4
    Needed
    30

    2008 to 2017, laboratory

  • EPA radon zone

    Zone 2

    Moderate potential

    1. 1
    2. Zone 2
    3. 3

    1 highest, 3 lowest

    EPA predicts 2 to 4 pCi/L indoors

Read a result for Searcy County

Starts at EPA's action level

4.0pCi/L

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

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 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

Searcy County, At a glance

Searcy County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Searcy County is a county: EPA's forecast for it as a whole is an average indoor of 2 to 4 pCi/L (75 to 150 Bq/m³). It describes no single address, and homes above EPA's are found in every zone, this one included.

USGS geologic potential: Moderate across 73% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Searcy County, 2008 to 2017, laboratory

CDC holds 4 reported tests for Searcy County over the 2008 to 2017 laboratory totals, with a median of 3.5 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Searcy County beside the counties around it is how this page reads it.

What these figures count

Only 4 tests were reported to CDC for Searcy County over 2008 to 2017 (laboratory totals), 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: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).

How to read these figures

Searcy County, Compared

Searcy County radon figures, compared

Calculated by Radon411

CDC's largest figure for Searcy County rests on 4 tests over the 2008 to 2017 laboratory totals, 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 6.5 pCi/L, with a middle value of 3.5 pCi/L.

The nearest counties with a figure are Pulaski County (82 miles away) at 6.8%, Washington County (85 miles away) at 14.3% and Saline County (87 miles away) at 31.9%. Pooled across 60 Arkansas counties, 22.7% of reported tests reached that level; across every county in the country with a figure, 35.8%.

Statewide for the same period, Garland County reported the highest share (45.8%) and Pulaski County the lowest (6.8%). EPA's 1993 map puts Searcy County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 73% of the county's land moderate radon potential.

Arkansas, the United States and the counties around Searcy County, 2007 to 2016, laboratory
AreaTestsAt or above 4 pCi/LMedian
Arkansas, pooled60 counties, pooled68722.7%Not pooled
United States, pooled2,666 counties, pooled1,939,02535.8%Not pooled
Garland Countyhighest in the state4845.8%2.9 pCi/L
Pulaski Countylowest in the state1036.8%0.9 pCi/L
Baxter County, ARborders it2065.0%5.3 pCi/L
Boone County, ARborders it2334.8%3.3 pCi/L
Pope County, ARborders it1315.4%2.7 pCi/L
Van Buren County, ARborders it60.0%2.6 pCi/L
Stone County, ARborders it70.0%1.1 pCi/L
Marion County, ARborders it10.0%0.1 pCi/L
Newton County, ARborders it10.0%3.0 pCi/L
The nearest Arkansas counties to Searcy County with 30 or more tests, 2007 to 2016, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Pulaski County82 mi1036.8%0.9 pCi/L
Washington County85 mi5614.3%2.2 pCi/L
Saline County87 mi4731.9%2.2 pCi/L
Benton County92 mi14531.0%1.8 pCi/L
Garland County95 mi4845.8%2.9 pCi/L
Searcy County ten-year laboratory totals, against Arkansas' pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestArkansas, pooledChange from the row before
2008 to 2017450.0%3.5 pCi/L6.5 pCi/L23.2%Level
2007 to 2016450.0%3.5 pCi/L6.5 pCi/L22.7%Level
2006 to 2015450.0%3.5 pCi/L6.5 pCi/L22.5%Level
2005 to 2014450.0%3.5 pCi/L6.5 pCi/L24.3%First on file

Pooled shares: Radon411's sum of CDC's county counts for one period.

Searcy County, Geology

The ground under Searcy County

Predicted

USGS's geologic map splits Searcy County: 73.5% of its land is moderate radon potential and 26.5% low. The map puts 58.3% of Searcy County in the area it calls Springfield Plateau and 26.5% in Boston Mountains, 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 8, in the low band (5 to 8).

USGS's geologic areas under Searcy County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Springfield PlateauMississippian limestone, shale, and sandstone.Moderate958.3%
Boston MountainsMississippian and Pennsylvanian sandstones and shales.Low826.5%
Salem PlateauOrdovician dolomite.Moderate915.1%

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

Searcy County beside the ground around it

Searcy County has more moderate-potential ground than Arkansas as a whole: 73.5% of its land against 21.3%. Of the 7 counties that border it, 3 have more moderate-potential ground, Baxter County the most at 100%.

Share of land by USGS radon potential: Searcy County, the 7 counties bordering it and Arkansas
AreaEPA zoneLow potentialModerate potentialHigh potential
Searcy CountyZone 226.5%73.5%None
Van Buren CountyZone 3100%NoneNone
Marion CountyZone 2None100%None
Stone CountyZone 236.9%63.1%None
Newton CountyZone 351.2%48.8%None
Baxter CountyZone 2None100%None
Boone CountyZone 25.2%94.8%None
Pope CountyZone 3100%NoneNone
Arkansas75 counties, pooled by land areaVaries78.7%21.3%None

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

What it means

Searcy County, Questions

Questions about radon in Searcy County

Are radon levels high in Searcy County?

Over the 2008 to 2017 laboratory totals, 50.0% of the radon tests reported to CDC for Searcy County, Arkansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.5 pCi/L. Of the 5 nearest counties with a figure, within 95 miles, the share of tests at or above 4 pCi/L runs from 6.8% to 45.8%.

Which counties border Searcy County?

Searcy County borders 7 counties: Van Buren County, Marion County, Stone County, Newton County, Baxter County, Boone County and Pope County.

Products

Searcy County, Products

Testing a home in Searcy County

No CDC figure names Searcy County; the nearest county with one, Pulaski County (82 miles away), reported 6.8% of its tests at or above 4 pCi/L over the 2007 to 2016 laboratory totals, 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 Searcy County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Searcy County homes, compared

Explore

Searcy County, Bordering counties

Counties bordering Searcy County

Calculated by Radon411

Searcy County, Cities and towns

Cities and towns in Searcy County

Searcy County's population has barely moved since 2020: 7,848 residents on July 1, 2025 against 7,845 then, by the Census Bureau's estimates. That works out to 12 people per square mile of land. No town dominates: Marshall, the largest, has 1,320 residents, 16.8% of the total. Testing is reported here more often than across the state: CDC's 4 reported tests for 2008 to 2017 come to 0.5 for every 1,000 residents (2025 estimate), against 0.2 for Arkansas.

From Marshall to Gilbert, CDC publishes no figure by town: each reads Searcy County's.

The cities and towns in Searcy County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Marshall1,320−1.0%16.8%
Leslie371−0.5%4.7%
St. Joe132+2.3%1.7%
Pindall100+1.0%1.3%
Big Flatextends beyond Searcy County87+1.2%Counted whole
Gilbert25Level0.3%

6 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). A place that extends beyond Searcy County is counted whole, so it has no share.

Searcy County, Homes

Homes in Searcy County

Searcy County is a place of houses on their own lots: 75% of its 4,721 homes are detached single-family houses, against 70% across Arkansas. Half of its homes were built before 1980, close to Arkansas' 1987: 22% date from before 1960 and 19% from 2000 or later. Owners live in 75% of the occupied homes (Arkansas: 66%), so for most households a test and a fix are their own to order.

Homes in Searcy County, Arkansas, 2019 to 2023
HomesSearcy CountyArkansas
Housing units4,7211,382,664
Detached houses75%70%
In buildings of 5 or more2%10%
Mobile homes20%11%
Built before 196022%14%
Built since 200019%28%
Middle year built19801987
Owner-occupied75%66%

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