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Radon Levels in Reno County, Kansas

EPA puts Reno County in Zone 2, its middle radon zone, and 25.4% of its 240 reported radon tests (2022) were at or above 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

    25.4%

    6.6 pts below KS

    Reno
    25.4%
    Kansas
    32.0%

    240 tests, 2022

  • Median result

    2.2pCi/L

    Below action level

    Reno
    2.2 pCi/L
    EPA
    4.0 pCi/L

    Midpoint of the tests, 2022

  • Tests reported

    240

    11th of 38 by tests

    Reno
    240
    Johnson
    5,240

    Reported to CDC before any fix, 2022

  • 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

  • Rank in Kansas

    31 of 38

    Lowest quarter

    Reno
    25.4%
    Mitchell
    57.4%

    By share, of 38 with 30+ tests

Read a result for Reno County

Starts at Reno County's median, 2.2 pCi/L

2.2pCi/L

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

EPA’s reading of 2.2 pCi/L

Between 2 and 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 between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Reno County's median reported result, 2022.

Interpret this readingWhat a fix costs

The data

Reno County, At a glance

Reno County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Reno 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 Reno County, 2022

Share of reported tests at or above 4 pCi/L, by year, Reno County
Share of reported tests at or above 4 pCi/L, by year, Reno County
YearShare of reported tests at or above 4 pCi/L
201621.1%
201721.6%
201825.4%
201920.8%
202017.8%
202118.1%
202225.4%

2022: 25.4%. Across these years the share ran from 17.8% to 25.4%. Each column counts radon tests reported to CDC that year, not homes.

What these figures count

These are the 240 tests reported to CDC for Reno County over 2022, many from homes being sold or already suspected of a problem: they describe the county's reported tests, not this house.

Measured: CDC tracking data. Figure above: 2022. Measured data period: 2016 to 2022 (every CDC figure on file).

How to read these figures

Reno County, Compared

Reno County radon figures, compared

Calculated by Radon411

Reno County's 240 reported tests in 2022 had a middle value of 2.2 pCi/L and a maximum of 28.5 pCi/L, and 25.4% reached 4 pCi/L. Kansas as a whole (96 Kansas counties, pooled) comes to 32.0%: 6.6 points higher than here.

Among its state's counties it ranks 31st of 38 Kansas counties with 30 or more tests for the same period. Statewide for the same period, Mitchell County reported the highest share (57.4%) and Crawford County the lowest (5.9%).

Below the action level, 99 tests (41.3%) came in under 2 pCi/L, against 45.8% statewide, and 80 tests (33.3%) fell between 2 and 4, against 22.1% statewide. The busiest year on file was 2021, with 648 tests reported; the quietest, 2016, had 227.

EPA's 1993 zone map puts Reno County in Zone 2, a predicted county average between 2 and 4 pCi/L. USGS geology rates 73% of the county's land moderate radon potential.

Next door, the shares run from 18.4% in Sedgwick County to 51.6% in McPherson County, with Sedgwick County below Reno County. Over 7 years of annual figures the share rose 4.3 points, from 21.1% in 2016 to 25.4% in 2022; its peak was 25.4% in 2018.

CDC also counts 18 tests taken after mitigation in Reno County for the same period: tests in homes where a fix was already in.

Share of reported tests at or above 4 pCi/L by year, Reno County against Kansas2016 to 2022, years with 30 or more tests: Reno County 21.1% to 25.4%, the state's pooled share 32.0% in 2022.
Reno CountyKansas, pooled
Share of reported tests at or above 4 pCi/L by year, Reno County against Kansas: data table
YearTestsReno County, at or above 4 pCi/LKansas, pooled
201622721.1%35.4%
201729621.6%37.3%
201831525.4%37.3%
201930320.8%33.7%
202031517.8%31.3%
202164818.1%31.8%
202224025.4%32.0%
Reno County against Kansas, the United States and nearby counties, 2022
AreaTestsAt or above 4 pCi/LMedianDifference from Reno County
Reno County24025.4%2.2 pCi/LThis county
Kansas, pooled96 counties, pooled18,38532.0%Not pooled+6.6 points
United States, pooled853 counties, pooled333,14023.9%Not pooled−1.5 points
Mitchell Countyhighest in the state4757.4%6.2 pCi/L+32.0 points
Crawford Countylowest in the state345.9%0.8 pCi/L−19.5 points
McPherson County, KSborders it21551.6%4.1 pCi/L+26.2 points
Stafford County, KSborders it650.0%4.2 pCi/L+24.6 points
Harvey County, KSborders it23234.1%2.8 pCi/L+8.7 points
Pratt County, KSborders it2128.6%2.2 pCi/L+3.2 points
Rice County, KSborders it5328.3%1.8 pCi/L+2.9 points
Kingman County, KSborders it2119.0%2.1 pCi/L−6.4 points
Sedgwick County, KSborders it4,91118.4%1.3 pCi/L−7.0 points
Where Reno County's reported results fell, 2022, beside Kansas and the United States
ResultReno County testsReno County shareKansas shareU.S. shareAgainst Kansas
Under 2 pCi/L9941.3%45.8%54.5%−4.5 points
2 to 4 pCi/L8033.3%22.1%21.7%+11.2 points
4 pCi/L and above6125.4%32.0%23.9%−6.6 points
Reno County ranked among the 38 Kansas counties with 30 or more tests, by share at or above 4 pCi/L, 2022
CountyRankTestsAt or above 4 pCi/LMedian
Wabaunsee County26 of 383129.0%2.2 pCi/L
Rice County27 of 385328.3%1.8 pCi/L
Leavenworth County28 of 3851526.8%1.9 pCi/L
Douglas County29 of 3886825.8%1.8 pCi/L
Butler County30 of 3855025.5%2.1 pCi/L
Reno County31 of 3824025.4%2.2 pCi/L
Pottawatomie County32 of 3820625.2%1.7 pCi/L
Geary County33 of 3836525.2%1.9 pCi/L
Finney County34 of 387623.7%3.0 pCi/L
Sedgwick County35 of 384,91118.4%1.3 pCi/L
Montgomery County36 of 386911.6%0.8 pCi/L
Reno County radon tests by year, against Kansas' pooled share
YearTestsAt or above 4 pCi/LMedianHighestKansas, pooledChange from the row before
202224025.4%2.2 pCi/L28.5 pCi/L32.0%+7.3 points
202164818.1%1.9 pCi/L12.3 pCi/L31.8%+0.3 points
202031517.8%1.8 pCi/L18.0 pCi/L31.3%−3.0 points
201930320.8%2.0 pCi/L22.9 pCi/L33.7%−4.6 points
201831525.4%2.0 pCi/L21.8 pCi/L37.3%+3.8 points
201729621.6%2.2 pCi/L15.7 pCi/L37.3%+0.5 points
201622721.1%2.4 pCi/L47.9 pCi/L35.4%First on file

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

Reno County, Geology

The ground under Reno County

Predicted

USGS's geologic map splits Reno County: 72.7% of its land is moderate radon potential and 27.3% high. The map puts 38.8% of Reno County in the area it calls Glaciated Area and 33.9% in Arkansas River Lowlands, with one smaller area beside them. USGS gives the first a radon index of 9 and the second 10, both in the moderate band (9 to 11).

USGS's geologic areas under Reno County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Glaciated AreaGlacial till underlain by Pennsylvanian and Permian marine and nonmarine sedimentary shale, sandstone, limestone, coal.Moderate938.8%
Arkansas River LowlandsDune sands and alluvium.Moderate1033.9%
Ogallala FormationTertiary sandstone, in part covered by windblown eolian sand and loess deposits.High1226.9%

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

Reno County beside the ground around it

Kansas as a whole has more high-potential ground than Reno County: 59.9% of its land, against 27.3% here. Of the 7 counties that border it, 4 have more high-potential ground, Rice County the most at 83.3%.

Share of land by USGS radon potential: Reno County, the 7 counties bordering it and Kansas
AreaEPA zoneLow potentialModerate potentialHigh potential
Reno CountyZone 2None72.7%27.3%
Rice CountyZone 1None16.7%83.3%
Kingman CountyZone 1None48.2%51.8%
McPherson CountyZone 1None52.1%47.9%
Stafford CountyZone 2None97.8%2.2%
Harvey CountyZone 2None100%None
Sedgwick CountyZone 2None100%None
Pratt CountyZone 1None28.4%71.6%
Kansas105 counties, pooled by land areaVariesNone40.1%59.9%

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

Local help

Reno County, Local resources

Radon testing and mitigation in Reno County

Listed radon businesses with an address in Reno County:

Listed radon professionals by town: Hutchinson, Nickerson

What Kansas's program says
Phone
(800) 693-5343

What it means

Reno County, Questions

Questions about radon in Reno County

Are radon levels high in Reno County?

In 2022, 25.4% of the radon tests reported to CDC for Reno County, Kansas were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.2 pCi/L. Of 38 Kansas counties with 30 or more tests for the same period, 30 reported a higher share; pooled, the state comes to 32.0%.

Which counties border Reno County?

Reno County borders 7 counties: Rice County, Kingman County, McPherson County, Stafford County, Harvey County, Sedgwick County and Pratt County.

Products

Reno County, Products

Testing a home in Reno County

In Reno County, 25.4% of 240 tests reported to CDC in 2022 reached 4 pCi/L, against 32.0% pooled across Kansas. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Reno County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Reno County homes, compared

Explore

Reno County, Bordering counties

Counties bordering Reno County

Calculated by Radon411

Reno County, Cities and towns

Cities and towns in Reno County

About 61,539 people live in Reno County by the Census Bureau's estimate for July 1, 2025, 352 fewer than in 2020 (−0.6%). That works out to 49 people per square mile of land. Hutchinson alone is home to 39,595 of them, 64.3% of the total. Together its 15 incorporated places hold 78.1% of those residents; the other 21.9% live outside any of them. Reported testing is thin here: 240 tests over 2022, or 3.9 for every 1,000 residents (2025 estimate), where Kansas as a whole comes to 6.2.

From Hutchinson to Langdon, CDC publishes no figure by town: each reads Reno County's.

The 12 largest cities and towns in Reno County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Hutchinson39,595−1.0%64.3%
South Hutchinson2,516−0.3%4.1%
Buhler1,320−0.3%2.1%
Haven1,169+0.3%1.9%
Nickerson1,051−1.4%1.7%
Pretty Prairie652−1.4%1.1%
Arlington430−1.1%0.7%
The Highlands352+0.9%0.6%
Turon308+0.3%0.5%
Sylvia212Level0.3%
Partridge210Level0.3%
Plevna83−1.2%0.1%
  • Abbyville
  • Willowbrook
  • Langdon

15 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).

Reno County, Homes

Homes in Reno County

Reno County is a place of houses on their own lots: 79% of its 28,309 homes are detached single-family houses, against 72% across Kansas. The homes are older than Kansas' as a whole: half were built before 1963 (1975 for Kansas), and 47% date from before 1960. 69% of occupied homes are lived in by their owner (Kansas: 67%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Reno County, Kansas, 2019 to 2023
HomesReno CountyKansas
Housing units28,3091,285,221
Detached houses79%72%
In buildings of 5 or more9%13%
Mobile homes3%4%
Built before 196047%33%
Built since 200010%20%
Middle year built19631975
Owner-occupied69%67%

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