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
Radon Levels in Newton County, Indiana
EPA puts Newton County in Zone 2, its middle radon zone, and only 16 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
61.8%
Benton County
- Benton
- 61.8%
- Jasper
- 14.1%
5 of 5 neighbours have 30+ tests, 2008 to 2017
Nearest county
14.1%
Jasper County, 15 miles
- Jasper
- 14.1%
- Indiana
- 38.9%
Share at 4+ pCi/L, 71 tests, 2008 to 2017
Ground above low
100.0%
Level with Indiana
- Newton
- 100.0%
- Indiana
- 100.0%
Share of land USGS rates moderate or high potential
Tests reported
16
Too few for a share
- Newton
- 16
- Needed
- 30
2008 to 2017, laboratory
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Newton County
Starts at EPA's action level
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
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 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
Newton County, At a glance
Newton County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Newton County is a
USGS geologic potential: Moderate across 51% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Newton County, 2008 to 2017, laboratory
CDC holds 16 reported tests for Newton County over the 2008 to 2017 laboratory totals, with a median of 1.6 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Newton County beside the counties around it is how this page reads it.
What these figures count
Only 16 tests were reported to CDC for Newton 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).
Newton County, Compared
Newton County radon figures, compared
Calculated by Radon411CDC's largest figure for Newton County rests on 16 tests over the 2008 to 2017 laboratory totals, 2 of them at or above 4 pCi/L, so each test moves its share by 6.3 points and no rank or comparison is drawn from it. Results reached as high as 8.5 pCi/L, with a middle value of 1.6 pCi/L.
Of the counties bordering it, 5 have a figure over the 2008 to 2017 laboratory totals: Benton County reported the largest share at or above 4 pCi/L, 61.8%, and Jasper County the smallest, 14.1%, with Kankakee County, IL at 42.5%, Iroquois County, IL at 28.0% and Lake County at 23.5% between. Farther out, White County (31 miles away) at 35.7%, Porter County (39 miles away) at 46.5% and Tippecanoe County (47 miles away) at 36.8% 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 Newton County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 51% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Newton County, Geology
The ground under Newton County
PredictedUSGS's geologic map splits Newton County: 50.9% of its land is moderate radon potential and 49.1% high. The map puts 50.9% of Newton County in the area it calls Kankakee Outwash and Lacustrine Plain and 49.1% in Huron-Erie Lobe. USGS gives the first a radon index of 10, in the moderate band (9 to 11), and the second 13, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Kankakee Outwash and Lacustrine Plain | Moraine deposits, outwash and dune sands. | Moderate | 10 | 50.9% |
| Huron-Erie Lobe | Calcareous clayey and loamy glacial deposits derived from marine carbonate and clastic sedimentary rocks. | High | 13 | 49.1% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Newton County beside the ground around it
On high-potential ground Newton County is close to Indiana as a whole: 49.1% of its land against 56.6%. Of the 5 counties that border it, 4 have more high-potential ground, Benton County the most at 100%.
The map rates the ground, not the air in any home.
Local help
Newton County, Local resources
Radon testing and mitigation in Newton 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
Newton County, Questions
Questions about radon in Newton County
Are radon levels high in Newton County?
Over the 2008 to 2017 laboratory totals, 12.5% of the radon tests reported to CDC for Newton County, Indiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.6 pCi/L. Of the counties bordering it, 5 have a figure over the 2008 to 2017 laboratory totals: Benton County reported the largest share at or above 4 pCi/L, 61.8%, and Jasper County the smallest, 14.1%, with Kankakee County, IL at 42.5%, Iroquois County, IL at 28.0% and Lake County at 23.5% between.
Which counties border Newton County?
Newton County borders 5 counties: Jasper County, IN, Benton County, IN, Iroquois County, IL, Kankakee County, IL and Lake County, IN.
Products
Newton County, Products
Testing a home in Newton County
No CDC figure names Newton County; the nearest county with one, Jasper County (15 miles away), reported 14.1% 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 Newton County; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
Long-term kit
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
Monitor
Corentium Home 2 battery digital radon monitor
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- Screen, app
Method: Alpha spectrometry
Readings: Every 60 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Newton County, Bordering counties
Counties bordering Newton County
Calculated by Radon411- Radon levels in Benton County, INEPA zone 1
61.8%at or above 4 pCi/L
Median 5.7 pCi/L · 34 tests
- Radon levels in Kankakee County, ILEPA zone 2
42.5%at or above 4 pCi/L
Median 3.3 pCi/L · 379 tests
- Radon levels in Iroquois County, ILEPA zone 1
28.0%at or above 4 pCi/L
Median 2.1 pCi/L · 410 tests
- Radon levels in Lake County, INEPA zone 2
23.5%at or above 4 pCi/L
Median 1.8 pCi/L · 1,198 tests
- Radon levels in Jasper County, INEPA zone 2
14.1%at or above 4 pCi/L
Median 1.2 pCi/L · 71 tests
Newton County, Cities and towns
Cities and towns in Newton County
The Census Bureau estimates 14,188 residents in Newton County for July 1, 2025, 401 more than in 2020 (+2.9%). That works out to 35 people per square mile of land. No town dominates: Kentland, the largest, has 1,631 residents, 11.5% of the total. Together its 5 incorporated places hold 33.5% of those residents; the other 66.5% live outside any of them. Reported testing is thin here: 16 tests over 2008 to 2017, or 1.1 for every 1,000 residents (2025 estimate), where Indiana as a whole comes to 6.2.
From Kentland to Mount Ayr, CDC publishes no figure by town: each reads Newton County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Kentland | 1,631 | −0.1% | 11.5% |
| Morocco | 1,084 | +0.9% | 7.6% |
| Goodland | 971 | −0.4% | 6.8% |
| Brook | 944 | +0.7% | 6.7% |
| Mount Ayr | 116 | Level | 0.8% |
5 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).
Newton County, Homes
Homes in Newton County
Newton County is a place of houses on their own lots: 87% of its 6,059 homes are detached single-family houses, against 73% across Indiana. Half of its homes were built before 1971, close to Indiana's 1976: 39% date from before 1960 and 13% from 2000 or later. 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 | Newton County | Indiana |
|---|---|---|
| Housing units | 6,059 | 2,953,344 |
| Detached houses | 87% | 73% |
| In buildings of 5 or more | 2% | 13% |
| Mobile homes | 7% | 4% |
| Built before 1960 | 39% | 32% |
| Built since 2000 | 13% | 21% |
| Middle year built | 1971 | 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.