Short-term kit
RA100 short-term liquid scintillation radon test kit
- Lab fee extra
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
Radon Levels in Clinton County, New York
EPA puts Clinton County in Zone 2, its middle radon zone, and only 12 radon tests from it are on file with CDC (2023). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
6.6%
18.6 pts below NY
- Clinton
- 6.6%
- New York
- 25.2%
91 tests, 2006 to 2015
Median result
1.4pCi/L
Below action level
- Clinton
- 1.4 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2006 to 2015
Tests reported
91
60th of 61 by tests
- Clinton
- 91
- Erie
- 11,939
Reported to CDC before any fix, 2006 to 2015
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 New York
57 of 61
Lowest quarter
- Clinton
- 6.6%
- Chemung
- 52.6%
By share, of 61 with 30+ tests
Read a result for Clinton County
Starts at Clinton County's median, 1.4 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 1.4 pCi/L
Below 2 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Clinton County's median reported result, 2006 to 2015.
The data
Clinton County, At a glance
Clinton County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Clinton County is a
USGS geologic potential: Moderate across 65% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Clinton County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 5.3% |
| 2015 | 0.0% |
| 2016 | 25.0% |
| 2017 | 4.5% |
| 2018 | 9.5% |
| 2019 | 6.3% |
| 2020 | 16.1% |
| 2021 | 0.0% |
| 2022 | 0.0% |
| 2023 | 25.0% |
2023: 25.0%. Across these years the share ran from 0.0% to 25.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 12 tests were reported to CDC for Clinton County over 2023, 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: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).
Clinton County, Compared
Clinton County radon figures, compared
Calculated by Radon411Clinton County reports fewer high tests than New York overall. 6.6% of its 91 tests over the 2006 to 2015 laboratory totals were at or above 4 pCi/L. That is 18.6 points below the 25.2% pooled from 62 New York counties.
The newest figure, in 2023, counts only 12 tests (25.0% at or above 4 pCi/L), too few to compare, so this reading uses the 91-test figure.
Ordered from highest share down, it comes 57th of 61 New York counties with 30 or more tests for the same period. Nationally, every county with a figure for the same period pools to 36.3%; Clinton County sits 29.7 points below it.
Next door, the shares run from 8.2% in Essex County to 28.9% in Grand Isle County, VT. The reported tests do not follow EPA's Zone 2 label for Clinton County (predicted average between 2 and 4 pCi/L): 6.6% of them reached 4 pCi/L, fewer than that label suggests.
Half the tests came in under 1.4 pCi/L and half over it; the single highest reached 9.4 pCi/L. The rest split 67.0% under 2 pCi/L and 26.4% from 2 to 4 (New York: 51.5% and 23.3%). Year by year, 2019 opened at 6.3% and 2022 closed at 0.0% (down 6.3 points), with 2020 the high at 16.1%.
The busiest year on file was 2019, with 48 tests reported; the quietest, 2015, had 11.
Clinton CountyNew York, pooled
0.0% % of tests22.4% % of tests
| Year | Tests | Clinton County, at or above 4 pCi/L | New York, pooled |
|---|---|---|---|
| 2019 | 48 | 6.3% | 28.0% |
| 2020 | 31 | 16.1% | 22.7% |
| 2022 | 48 | 0.0% | 22.4% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Clinton County, State data
New York's own radon test data
MeasuredWhat New York's own agencies publish about radon tests in Clinton County, with their period. These are not CDC's figures and are never added to them.
MeasuredState figures, not CDC's
What the New York State Department of Health reports for Clinton County
Indoor air radon testing data (Environmental Public Health Tracker): short-term charcoal canister tests requested through the NYSDOH Radon Program, presented as five-year rolling averages. Period: 2015-2019. The publisher also lists 15 earlier periods.
Share at or above 4 pCi/L
8.1%
Average result
1.7 pCi/L
Tests behind these figures
24.8 tests a year on average
- Every figure is a five-year rolling average: the average result is the rolling average of each year's mean, and the test count is an average per year.
- The data only include tests requested through the NYSDOH Radon Program, and therefore may not capture all radon tests performed in a county.
- The data include both screening tests and post-mitigation tests, as it is not always possible to tell them apart.
- Radon testing by homeowners is optional in New York, so the values may not be representative of every home in the county.
- These figures describe tests reported to the New York State Department of Health in this area. They count a different set of tests than CDC's figures and are not a reading of any one home.
Measured: New York State Department of Health data, 2015-2019.
Clinton County, Geology
The ground under Clinton County
PredictedUSGS's geologic map splits Clinton County: 64.9% of its land is moderate radon potential and 35.0% low. The map puts 64.9% of Clinton County in the area it calls St. Lawrence Champlain-Lowlands and 34.1% in Adirondacks, with one smaller area beside them. USGS gives the first a radon index of 10, in the moderate band (9 to 11), and the second 8, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| St. Lawrence Champlain-Lowlands | Cambrian-Ordovician sedimentary rocks (conglomerates and sandstones). | Moderate | 10 | 64.9% |
| Adirondacks | Anorthosite and charnockitic gneisses. | Low | 8 | 34.1% |
| High Peaks | Anorthosite and charnockitic gneisses. | Low | 8 | 0.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Clinton County beside the ground around it
Across New York 48.9% of the land is rated high; none of Clinton County's is. Of the 4 counties that border it, none has as large a share of moderate-potential ground; Chittenden County, VT comes nearest at 55.7%.
The map rates the ground, not the air in any home.
Local help
Clinton County, Local resources
Radon testing and mitigation in Clinton County
- Radon ProgramRadon Program, run by New York State Department of Health, does not license radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in New York.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
Providing patients with information about how low-cost test kits may be obtained from the Radon Program.
- Compare kits
- Professionals in New York88 professionals are listed in New York.
What New York's program says
- Phone
- 518-402-7556
- radon@health.ny.gov
- Licensing of radon professionals
NYS does not certify or license radon testers.
What it means
Clinton County, Questions
Questions about radon in Clinton County
Are radon levels high in Clinton County?
In 2023, 25.0% of the radon tests reported to CDC for Clinton County, New York were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.8 pCi/L. Of 61 New York counties with 30 or more tests for the same period, 56 reported a higher share; pooled, the state comes to 25.2%.
Which counties border Clinton County?
Clinton County borders 4 counties: Grand Isle County, VT, Franklin County, NY, Chittenden County, VT and Essex County, NY.
Products
Clinton County, Products
Testing a home in Clinton County
In Clinton County, 6.6% of 91 tests reported to CDC over the 2006 to 2015 laboratory totals reached 4 pCi/L, against 25.2% pooled across New York. In Zone 2 a short-term kit (2 to 90 days) is the quick first check in Clinton 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
MonitorForensics Detectors
FD-65-RADON rechargeable radon detector with a color screen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Clinton County, Bordering counties
Counties bordering Clinton County
Calculated by Radon411- Radon levels in Grand Isle County, VTEPA zone 3
28.9%at or above 4 pCi/L
Median 2.3 pCi/L · 45 tests · 22.3 points above Clinton County
- Radon levels in Franklin County, NYEPA zone 3
25.7%at or above 4 pCi/L
Median 1.5 pCi/L · 35 tests · 19.1 points above Clinton County
- Radon levels in Chittenden County, VTEPA zone 3
13.6%at or above 4 pCi/L
Median 1.4 pCi/L · 2,364 tests · 7.0 points above Clinton County
- Radon levels in Essex County, NYEPA zone 3
8.2%at or above 4 pCi/L
Median 1.2 pCi/L · 110 tests · 1.6 points above Clinton County
Clinton County, Cities and towns
Cities and towns in Clinton County
About 78,138 people live in Clinton County by the Census Bureau's estimate for July 1, 2025, 1,575 fewer than in 2020 (−2.0%). That works out to 75 people per square mile of land. Its largest town, Plattsburgh, has 19,744 residents, 25.3% of the total. Together its 4 incorporated places hold 32.8% of those residents; the other 67.2% live outside any of them. Reported testing is thin here: 91 tests over 2006 to 2015, or 1.2 for every 1,000 residents (2025 estimate), where New York as a whole comes to 4.3.
From Plattsburgh to Champlain, CDC publishes no figure by town: each reads Clinton County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Plattsburgh | 19,744 | −0.4% | 25.3% |
| Dannemora | 2,562 | −22.3% | 3.3% |
| Rouses Point | 2,179 | −3.2% | 2.8% |
| Champlain | 1,122 | −3.4% | 1.4% |
4 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).
Clinton County, Homes
Homes in Clinton County
Of Clinton County's 37,461 homes, 61% are detached houses, against 41% across New York; 13% are mobile homes. Much of Clinton County is recent building: 17% of its homes have gone up since 2000 and the middle year built is 1974, against 1958 for New York. 69% of occupied homes are lived in by their owner (New York: 54%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Clinton County | New York |
|---|---|---|
| Housing units | 37,461 | 8,539,536 |
| Detached houses | 61% | 41% |
| In buildings of 5 or more | 11% | 34% |
| Mobile homes | 13% | 2% |
| Built before 1960 | 38% | 53% |
| Built since 2000 | 17% | 12% |
| Middle year built | 1974 | 1958 |
| Owner-occupied | 69% | 54% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.