
Short-term kitempowerDX
Standard Radon Test short-term mail-in radon test kit
- Lab fee included
Method: Passive sampler
In home: 48 to 96 hours
Locations and reports
EPA puts Switzerland County in Zone 2, its middle radon zone, and only 15 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
Highest bordering
45.8%
Jefferson County
3 of 6 neighbours have 30+ tests, 2008 to 2017
Nearest county
45.8%
Jefferson County, 22 miles
Share at 4+ pCi/L, 72 tests, 2008 to 2017
Ground above low
100.0%
Level with Indiana
Share of land USGS rates moderate or high potential
Tests reported
15
Too few for a share
2008 to 2017, laboratory
EPA radon zone
Zone 2
Moderate potential
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Switzerland County
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
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
Switzerland County, At a glance
Predicted: EPA radon zone
Switzerland County is a
USGS geologic potential: Moderate across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
CDC holds 15 reported tests for Switzerland County over the 2008 to 2017 laboratory totals, with a median of 1.5 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Switzerland County beside the counties around it is how this page reads it.
Only 15 tests were reported to CDC for Switzerland 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).
Switzerland County, Compared
CDC's largest figure for Switzerland County rests on 15 tests over the 2008 to 2017 laboratory totals, 5 of them at or above 4 pCi/L, so each test moves its share by 6.7 points and no rank or comparison is drawn from it. Results reached as high as 23.9 pCi/L, with a middle value of 1.5 pCi/L.
Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Jefferson County reported the largest share at or above 4 pCi/L, 45.8%, and Ripley County the smallest, 35.3%, with Boone County, KY at 42.9% between. Farther out, Dearborn County (22 miles away) at 30.1%, Jennings County (34 miles away) at 35.1% and Franklin County (41 miles away) at 28.0% have figures too. Pooled across 92 Indiana counties, 38.9% of reported tests reached that level; across every county in the country with a figure, 35.7%.
Statewide for the same period, Miami County reported the highest share (63.3%) and Jasper County the lowest (14.1%). EPA's 1993 map puts Switzerland County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Switzerland County, Geology
USGS's geologic map puts all of Switzerland County's mapped land in one class: moderate radon potential. All of it lies in the area the map calls Dearborn Upland, to which USGS gives a radon index of 10, in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Dearborn Upland | Ordovician through Devonian limestone, dolostone, and gray shale, and pre-Wisconsinan glacial deposits. | Moderate | 10 | 99.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Across Indiana 56.6% of the land is rated high; none of Switzerland County's is. Of the 6 counties that border it, 1 has more high-potential ground, Jefferson County the most at 23.8%.
The map rates the ground, not the air in any home.
Local help
Switzerland County, Local resources
To purchase a low-cost radon short term or long term test kit, please visit the American Lung Association
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
Switzerland County, Questions
Over the 2008 to 2017 laboratory totals, 33.3% of the radon tests reported to CDC for Switzerland County, Indiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.5 pCi/L. Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Jefferson County reported the largest share at or above 4 pCi/L, 45.8%, and Ripley County the smallest, 35.3%, with Boone County, KY at 42.9% between.
Switzerland County borders 6 counties: Gallatin County, KY, Carroll County, KY, Ohio County, IN, Boone County, KY, Ripley County, IN and Jefferson County, IN.
Products
Switzerland County, Products
No CDC figure names Switzerland County; the nearest county with one, Jefferson County (22 miles away), reported 45.8% of its tests at or above 4 pCi/L over the 2008 to 2017 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 Switzerland County; a long-term test tells the year-round average.
Test kits and monitors: 1 of 3
Explore
Switzerland County, Bordering counties
52.4%at or above 4 pCi/L
Median 4.1 pCi/L · 21 tests
45.8%at or above 4 pCi/L
Median 3.1 pCi/L · 72 tests
42.9%at or above 4 pCi/L
Median 3.5 pCi/L · 1,434 tests
38.5%at or above 4 pCi/L
Median 3.5 pCi/L · 26 tests
35.3%at or above 4 pCi/L
Median 2.9 pCi/L · 68 tests
25.0%at or above 4 pCi/L
Median 2.5 pCi/L · 24 tests
Switzerland County, Cities and towns
The Census Bureau estimates 10,037 residents in Switzerland County for July 1, 2025, 297 more than in 2020 (+3.0%). That works out to 45 people per square mile of land. No town dominates: Vevay, the largest, has 1,760 residents, 17.5% of the total. Together its 2 incorporated places hold 19.6% of those residents; the other 80.4% live outside any of them. Reported testing is thin here: 15 tests over 2008 to 2017, or 1.5 for every 1,000 residents (2025 estimate), where Indiana as a whole comes to 6.2.
From Vevay to Patriot, CDC publishes no figure by town: each reads Switzerland County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Vevay | 1,760 | +1.6% | 17.5% |
| Patriot | 209 | +5.0% | 2.1% |
2 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).
Switzerland County, Homes
Switzerland County is a place of houses on their own lots: 75% of its 4,399 homes are detached single-family houses, against 73% across Indiana. Much of Switzerland County is recent building: 24% of its homes have gone up since 2000 and the middle year built is 1988, against 1976 for Indiana. Owners live in 80% of the occupied homes (Indiana: 70%), so for most households a test and a fix are their own to order.
| Homes | Switzerland County | Indiana |
|---|---|---|
| Housing units | 4,399 | 2,953,344 |
| Detached houses | 75% | 73% |
| In buildings of 5 or more | 5% | 13% |
| Mobile homes | 16% | 4% |
| Built before 1960 | 25% | 32% |
| Built since 2000 | 24% | 21% |
| Middle year built | 1988 | 1976 |
| Owner-occupied | 80% | 70% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.