Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Locations and reports
Radon Levels in Hettinger County, North Dakota
EPA puts Hettinger County in Zone 1, its highest 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
Share at 4+ pCi/L
58.8%
4.8 pts above ND
- Hettinger
- 58.8%
- ND
- 54.0%
34 tests, 2005 to 2014
Median result
5.6pCi/L
Action level reached
- Hettinger
- 5.6 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2005 to 2014
Tests reported
34
35th of 39 by tests
- Hettinger
- 34
- Burleigh
- 1,312
Reported to CDC before any fix, 2005 to 2014
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Rank in ND
21 of 39
Middle half
- Hettinger
- 58.8%
- Billings
- 90.9%
By share, of 39 with 30+ tests
Read a result for Hettinger County
Starts at Hettinger County's median, 5.6 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 5.6 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. Hettinger County's median reported result, 2005 to 2014.
The data
Hettinger County, At a glance
Hettinger County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Hettinger County in
USGS geologic potential: High across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Hettinger County, 2008 to 2017, laboratory
CDC holds 16 reported tests for Hettinger County over the 2008 to 2017 laboratory totals, with a median of 5.8 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Hettinger County beside the counties around it is how this page reads it.
What these figures count
Only 16 tests were reported to CDC for Hettinger 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).
Hettinger County, Compared
Hettinger County radon figures, compared
Calculated by Radon411More than half: 58.8% of the 34 radon tests reported to CDC for Hettinger County over the 2005 to 2014 laboratory totals read at least 4 pCi/L. That places it 21st of 39 North Dakota counties with 30 or more tests for the same period. That is 4.8 points above the 54.0% pooled from 53 North Dakota counties.
The newest figure, over the 2008 to 2017 laboratory totals, counts only 16 tests (62.5% at or above 4 pCi/L), too few to compare, so this reading uses the 34-test figure.
The median result, 5.6 pCi/L, sits above EPA's 4 pCi/L action level, and the top reported result was 25.3 pCi/L. The rest split 17.6% under 2 pCi/L and 23.5% from 2 to 4 (North Dakota: 22.0% and 23.9%). Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 58.8% share point the same way here.
All 2 of its bordering counties with figures ran higher, led by Grant County at 66.7%; the lowest of them, Stark County, reported 62.2%. Statewide for the same period, Billings County reported the highest share (90.9%) and Williams County the lowest (35.1%).
CDC's ten-year totals for Hettinger County went from 34 tests (2005 to 2014) to 16 (2008 to 2017), the share going from 58.8% to 62.5%.
Nationally, every county with a figure for the same period pools to 36.0%; Hettinger County sits 22.8 points above it.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Hettinger County, Geology
The ground under Hettinger County
PredictedUSGS's geologic map puts all of Hettinger County's mapped land in one class: high radon potential. All of it lies in the area the map calls Great Plains (Unglaciated), to which USGS gives a radon index of 13, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Great Plains (Unglaciated) | Tertiary and Upper Cretaceous sandstones, shales, and locally, coal-bearing units. | High | 13 | 99.8% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Hettinger County beside the ground around it
On high-potential ground Hettinger County is close to North Dakota as a whole: 100% of its land against 98.9%. Of the 4 counties that border it, none has as large a share of high-potential ground; Adams County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Hettinger County, Local resources
Radon testing and mitigation in Hettinger County
- North Dakota's radon programNorth Dakota Department of Environmental QualityNorth Dakota's radon program offers free or discounted test kits, and answers questions about testing and mitigation in North Dakota.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
Notice: The DEQ is out of free radon test kits.
- Compare kits
- Professionals in North Dakota47 professionals are listed in North Dakota.
What North Dakota's program says
- Phone
- 701-328-5166
- jOtto@nd.gov
What it means
Hettinger County, Questions
Questions about radon in Hettinger County
Are radon levels high in Hettinger County?
Over the 2008 to 2017 laboratory totals, 62.5% of the radon tests reported to CDC for Hettinger County, North Dakota were at or above 4 pCi/L, and the median reported pre-mitigation result was 5.8 pCi/L. Of 39 North Dakota counties with 30 or more tests for the same period, 20 reported a higher share; pooled, the state comes to 54.0%.
Which counties border Hettinger County?
Hettinger County borders 4 counties: Adams County, Stark County, Grant County and Slope County.
Products
Hettinger County, Products
Testing a home in Hettinger County
In Hettinger County, 58.8% of 34 tests reported to CDC over the 2005 to 2014 laboratory totals reached 4 pCi/L, against 54.0% pooled across North Dakota. In Zone 1 the year-round level in Hettinger County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.
Test kits and monitors3
See every kit and monitor
Monitor
EcoQube Flex battery digital radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Bluetooth
- Alarm
- Screen, app
Method: Ion chamber
First reading: Within 15 minutes
Short-term kit
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Hettinger County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Hettinger County
Explore
Hettinger County, Bordering counties
Counties bordering Hettinger County
Calculated by Radon411- Radon levels in Slope CountyEPA zone 1
76.5%at or above 4 pCi/L
Median 16.0 pCi/L · 17 tests · 17.7 points above Hettinger County
- Radon levels in Adams CountyEPA zone 1
74.1%at or above 4 pCi/L
Median 7.8 pCi/L · 27 tests · 15.3 points above Hettinger County
- Radon levels in Grant CountyEPA zone 1
66.7%at or above 4 pCi/L
Median 6.0 pCi/L · 30 tests · 7.9 points above Hettinger County
- Radon levels in Stark CountyEPA zone 1
62.2%at or above 4 pCi/L
Median 5.1 pCi/L · 405 tests · 3.4 points above Hettinger County
Hettinger County, Cities and towns
Cities and towns in Hettinger County
Hettinger County's population has barely moved since 2020: 2,492 residents on July 1, 2025 against 2,483 then, by the Census Bureau's estimates. Spread over its land, that is 2.2 people to the square mile. Its largest town, New England, has 717 residents, 28.8% of the total. Together its 3 incorporated places hold 61.4% of those residents; the other 38.6% live outside any of them. Testing is reported here more often than across the state: CDC's 34 reported tests for 2005 to 2014 come to 13.6 for every 1,000 residents (2025 estimate), against 8.2 for North Dakota.
From New England to Regent, CDC publishes no figure by town: each reads Hettinger County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| New England | 717 | +3.8% | 28.8% |
| Mott | 645 | −0.9% | 25.9% |
| Regent | 167 | −1.8% | 6.7% |
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).
Hettinger County, Homes
Homes in Hettinger County
Hettinger County is a place of houses on their own lots: 83% of its 1,438 homes are detached single-family houses, against 57% across North Dakota. The homes are older than North Dakota's as a whole: half were built before 1961 (1981 for North Dakota), and 48% date from before 1960. Owners live in 80% of the occupied homes (North Dakota: 63%), so for most households a test and a fix are their own to order.
| Homes | Hettinger County | North Dakota |
|---|---|---|
| Housing units | 1,438 | 374,866 |
| Detached houses | 83% | 57% |
| In buildings of 5 or more | 7% | 25% |
| Mobile homes | 7% | 7% |
| Built before 1960 | 48% | 24% |
| Built since 2000 | 10% | 31% |
| Middle year built | 1961 | 1981 |
| Owner-occupied | 80% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.