Skip to content

Locations and reports

Radon Levels in Logan County, Arkansas

EPA puts Logan County in Zone 3, its lowest 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

    45.8%

    Garland County, 55 miles

    Garland
    45.8%
    Arkansas
    22.7%

    Share at 4+ pCi/L, 48 tests, 2007 to 2016

  • Ground above low

    None

    21.3 pts below Arkansas

    Logan
    0.0%
    Arkansas
    21.3%

    Share of land USGS rates moderate or high potential

  • Tests reported

    5

    Too few for a share

    Logan
    5
    Needed
    30

    2007 to 2016, laboratory

  • EPA radon zone

    Zone 3

    Lower potential

    1. 1
    2. 2
    3. Zone 3

    1 highest, 3 lowest

    EPA predicts under 2 pCi/L indoors

Read a result for Logan 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

Logan County, At a glance

Logan County at a glance

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

is EPA's lowest class, and its forecast for Logan County as a whole is an average indoor of less than 2 pCi/L (less than 75 Bq/m³). A low zone clears no address in it: homes above EPA's turn up in all three zones.

USGS geologic potential: Low across 100% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

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

CDC holds 4 reported tests for Logan County over the 2008 to 2017 laboratory totals, with a median of 1.8 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Logan County beside the counties around it is how this page reads it.

What these figures count

Only 4 tests were reported to CDC for Logan 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

Logan County, Compared

Logan County radon figures, compared

Calculated by Radon411

CDC's largest figure for Logan County rests on 5 tests over the 2007 to 2016 laboratory totals, 1 of them at or above 4 pCi/L, so each test moves its share by 20.0 points and no rank or comparison is drawn from it. Results reached as high as 6.7 pCi/L, with a middle value of 2.1 pCi/L.

The nearest counties with a figure are Garland County (55 miles away) at 45.8%, Washington County (60 miles away) at 14.3% and Saline County (71 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 Logan County in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.

Arkansas, the United States and the counties around Logan 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
Johnson County, ARborders it366.7%9.7 pCi/L
Pope County, ARborders it1315.4%2.7 pCi/L
Sebastian County, ARborders it293.4%0.1 pCi/L
Franklin County, ARborders it10.0%0.1 pCi/L
Yell County, ARborders it20.0%0.5 pCi/L
The nearest Arkansas counties to Logan County with 30 or more tests, 2007 to 2016, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Garland County55 mi4845.8%2.9 pCi/L
Washington County60 mi5614.3%2.2 pCi/L
Saline County71 mi4731.9%2.2 pCi/L
Benton County83 mi14531.0%1.8 pCi/L
Pulaski County85 mi1036.8%0.9 pCi/L
Logan County ten-year laboratory totals, against Arkansas' pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestArkansas, pooledChange from the row before
2008 to 201740.0%1.8 pCi/L2.6 pCi/L23.2%−20.0 points
2007 to 2016520.0%2.1 pCi/L6.7 pCi/L22.7%−5.0 points
2006 to 2015425.0%1.8 pCi/L6.7 pCi/L22.5%Level
2005 to 2014425.0%1.8 pCi/L6.7 pCi/L24.3%First on file

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

Logan County, Geology

The ground under Logan County

Predicted

USGS's geologic map puts all of Logan County's mapped land in one class: low radon potential. All of it lies in the area the map calls Arkansas Valley, to which USGS gives a radon index of 8, in the low band (5 to 8).

USGS's geologic areas under Logan County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Arkansas ValleyMississippian and Pennsylvanian sandstones and shales.Low8100%

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

Logan County beside the ground around it

Across Arkansas 21.3% of the land is rated moderate; none of Logan County's is. None of the 6 counties that border it has any moderate-potential ground either.

Share of land by USGS radon potential: Logan County, the 6 counties bordering it and Arkansas
AreaEPA zoneLow potentialModerate potentialHigh potential
Logan CountyZone 3100%NoneNone
Yell CountyZone 3100%NoneNone
Franklin CountyZone 3100%NoneNone
Johnson CountyZone 3100%NoneNone
Sebastian CountyZone 3100%NoneNone
Pope CountyZone 3100%NoneNone
Scott 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

Logan County, Questions

Questions about radon in Logan County

Are radon levels high in Logan County?

Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Logan County, Arkansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.8 pCi/L. Of the 5 nearest counties with a figure, within 85 miles, the share of tests at or above 4 pCi/L runs from 6.8% to 45.8%.

Which counties border Logan County?

Logan County borders 6 counties: Yell County, Franklin County, Johnson County, Sebastian County, Pope County and Scott County.

Products

Logan County, Products

Testing a home in Logan County

No CDC figure names Logan County; the nearest county with one, Garland County (55 miles away), reported 45.8% 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. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in Logan County.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Logan County homes, compared

Explore

Logan County, Bordering counties

Counties bordering Logan County

Calculated by Radon411

Logan County, Cities and towns

Cities and towns in Logan County

The Census Bureau estimates 21,633 residents in Logan County for July 1, 2025, 525 more than in 2020 (+2.5%). That works out to 31 people per square mile of land. No town dominates: Booneville, the largest, has 3,836 residents, 17.7% of the total. Together its 9 incorporated places hold 42.1% of those residents; the other 57.9% live outside any of them. CDC's 5 reported tests for 2007 to 2016 work out to 0.2 per 1,000 residents (2025 estimate), close to Arkansas' 0.2.

From Booneville to Morrison Bluff, CDC publishes no figure by town: each reads Logan County's.

The cities and towns in Logan County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Booneville3,836+0.8%17.7%
Paris3,357+2.6%15.5%
Magazine758+1.7%3.5%
Subiaco403+2.8%1.9%
Scranton261+8.3%1.2%
Ratcliff163+0.6%0.8%
Caulksville159+3.2%0.7%
Blue Mountain83+2.5%0.4%
Morrison Bluff83+5.1%0.4%

9 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).

Logan County, Homes

Homes in Logan County

Logan County is a place of houses on their own lots: 83% of its 9,762 homes are detached single-family houses, against 70% across Arkansas. The homes are older than Arkansas' as a whole: half were built before 1979 (1987 for Arkansas), and 19% date from before 1960. Owners live in 77% of the occupied homes (Arkansas: 66%), so for most households a test and a fix are their own to order.

Homes in Logan County, Arkansas, 2019 to 2023
HomesLogan CountyArkansas
Housing units9,7621,382,664
Detached houses83%70%
In buildings of 5 or more2%10%
Mobile homes10%11%
Built before 196019%14%
Built since 200019%28%
Middle year built19791987
Owner-occupied77%66%

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