Short-term kit
Radon Short Term Test Kit short-term charcoal radon test kit, lab fee included
- Lab fee included
Method: Charcoal
In home: 2 to 7 days
Locations and reports
Radon Levels in Floyd County, Indiana
EPA puts Floyd County in Zone 2, its middle radon zone, and high results are common there: 42.4% of the 316 radon tests reported to CDC (2008 to 2017, laboratory totals) came back 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
Share at 4+ pCi/L
42.4%
3.5 pts above IN
- Floyd
- 42.4%
- Indiana
- 38.9%
316 tests, 2008 to 2017
Median result
3.3pCi/L
Below action level
- Floyd
- 3.3 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2008 to 2017
Tests reported
316
21st of 69 by tests
- Floyd
- 316
- St. Joseph
- 7,346
Reported to CDC before any fix, 2008 to 2017
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Rank in Indiana
36 of 69
Middle half
- Floyd
- 42.4%
- Miami
- 63.3%
By share, of 69 with 30+ tests
Read a result for Floyd County
Starts at Floyd County's median, 3.3 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 3.3 pCi/L
Between 2 and 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 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. Floyd County's median reported result, 2008 to 2017.
The data
Floyd County, At a glance
Floyd County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Floyd County is a
USGS geologic potential: Moderate across 96% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Floyd County, 2008 to 2017, laboratory
Under 2 pCi/L: 30%2 to 4 pCi/L: 28%4 pCi/L and above: 42%
Of 316 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 95 | 30.1% |
| 2 to 4 pCi/L | 87 | 27.5% |
| 4 pCi/L and above | 134 | 42.4% |
What these figures count
These are the 316 tests reported to CDC for Floyd County over 2008 to 2017 (laboratory totals), 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: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).
Floyd County, Compared
Floyd County radon figures, compared
Calculated by Radon411In Floyd County, about 4 in 10 reported tests over the 2008 to 2017 laboratory totals (134 of 316) were at or above EPA's action level. Against the national pool of 35.7%, the gap is 6.7 points higher. Across 92 Indiana counties pooled together, 38.9% of tests reached that level, so Floyd County runs 3.5 points above its state.
Of 4 neighbours with a figure, 2 reported a larger share at or above 4 pCi/L and 2 a smaller one; the spread is 39.4% (Jefferson County, KY) to 62.4% (Harrison County). By share, Floyd County is 36th of 69 Indiana counties with 30 or more tests for the same period.
Half the tests came in under 3.3 pCi/L and half over it; the single highest reached 56.0 pCi/L. Below the action level, 95 tests (30.1%) came in under 2 pCi/L, against 32.8% statewide, and 87 tests (27.5%) fell between 2 and 4, against 28.3% statewide.
Zone 2 on EPA's map (predicted average between 2 and 4 pCi/L) and a 42.4% share point the same way here. USGS geology rates 96% of the county's land moderate radon potential. CDC also counts 19 tests taken after mitigation in Floyd County for the same period: tests in homes where a fix was already in.
CDC's ten-year totals for Floyd County went from 238 tests (2005 to 2014) to 316 (2008 to 2017), the share going from 44.1% to 42.4%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Floyd County, Geology
The ground under Floyd County
PredictedMost of the ground under Floyd County is one class on USGS's geologic map: 95.7% of its land is moderate radon potential, with 4.3% high. 95.7% of it lies in the area the map calls Crawford Upland/Mitchell Plain/Norman Upland, to which USGS gives a radon index of 11, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Crawford Upland/Mitchell Plain/Norman Upland | Unglaciated, underlain by karsted Mississippian carbonate rocks. | Moderate | 11 | 95.7% |
| New Albany Shale | New Albany black shale. | High | 12 | 4.3% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Floyd County beside the ground around it
Indiana as a whole has more high-potential ground than Floyd County: 56.6% of its land, against 4.3% here. Of the 4 counties that border it, 2 have more high-potential ground, Jefferson County, KY the most at 55.1%.
The map rates the ground, not the air in any home.
Local help
Floyd County, Local resources
Radon testing and mitigation in Floyd County
- Indiana's radon programIndiana Department of HealthIndiana's radon program licenses or certifies radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in Indiana.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
To purchase a low-cost radon short term or long term test kit, please visit the American Lung Association
- Compare kits
- Professionals in Indiana17 professionals are listed in Indiana.
What Indiana's program says
- Phone
- 1-800-272-9723
- Licensing of radon professionals
According to the Indiana Radon Rule, 410 IAC 5.1, everyone who is serving Indiana by doing radon testing, analysis and mitigation (radon reduction) in residential structures must be certified by the Indiana State Department of Health.
What it means
Floyd County, Questions
Questions about radon in Floyd County
Are radon levels high in Floyd County?
Over the 2008 to 2017 laboratory totals, 42.4% of the radon tests reported to CDC for Floyd County, Indiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.3 pCi/L. Of 69 Indiana counties with 30 or more tests for the same period, 35 reported a higher share; pooled, the state comes to 38.9%.
Which counties border Floyd County?
Floyd County borders 4 counties: Clark County, IN, Harrison County, IN, Jefferson County, KY and Washington County, IN.
Products
Floyd County, Products
Testing a home in Floyd County
In Floyd County, 42.4% of 316 tests reported to CDC over the 2008 to 2017 laboratory totals reached 4 pCi/L, against 38.9% pooled across Indiana. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Floyd County; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
MonitorX-Sense
XR0B-SR battery digital radon monitor with an alarm
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Alpha spectrometry
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Floyd County, Bordering counties
Counties bordering Floyd County
Calculated by Radon411- Radon levels in Harrison County, INEPA zone 1
62.4%at or above 4 pCi/L
Median 5.5 pCi/L · 221 tests · 20.0 points above Floyd County
- Radon levels in Clark County, INEPA zone 1
47.7%at or above 4 pCi/L
Median 3.6 pCi/L · 512 tests · 5.3 points above Floyd County
- Radon levels in Washington County, INEPA zone 1
42.1%at or above 4 pCi/L
Median 3.5 pCi/L · 38 tests · 0.3 points below Floyd County
- Radon levels in Jefferson County, KYEPA zone 1
39.4%at or above 4 pCi/L
Median 2.7 pCi/L · 6,590 tests · 3.0 points below Floyd County
Floyd County, Cities and towns
Cities and towns in Floyd County
The Census Bureau estimates 82,153 residents in Floyd County for July 1, 2025, 1,634 more than in 2020 (+2.0%). That works out to 553 people per square mile of land. Its largest town, New Albany, has 37,463 residents, 45.6% of the total. Together its 3 incorporated places hold 52.1% of those residents; the other 47.9% live outside any of them. Reported testing is thin here: 316 tests over 2008 to 2017, or 3.8 for every 1,000 residents (2025 estimate), where Indiana as a whole comes to 6.2.
From New Albany to Greenville, CDC publishes no figure by town: each reads Floyd County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| New Albany | 37,463 | −0.9% | 45.6% |
| Georgetown | 3,855 | +0.7% | 4.7% |
| Greenville | 1,452 | +5.0% | 1.8% |
3 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).
Floyd County, Homes
Homes in Floyd County
Floyd County is a place of houses on their own lots: 75% of its 34,603 homes are detached single-family houses, against 73% across Indiana. Half of its homes were built before 1978, close to Indiana's 1976: 31% date from before 1960 and 20% from 2000 or later. 73% of occupied homes are lived in by their owner (Indiana: 70%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Floyd County | Indiana |
|---|---|---|
| Housing units | 34,603 | 2,953,344 |
| Detached houses | 75% | 73% |
| In buildings of 5 or more | 13% | 13% |
| Mobile homes | 3% | 4% |
| Built before 1960 | 31% | 32% |
| Built since 2000 | 20% | 21% |
| Middle year built | 1978 | 1976 |
| Owner-occupied | 73% | 70% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.