
Short-term kitKidde
442020 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 3 days
Locations and reports
EPA puts Keya Paha County in Zone 2, its middle radon zone, and only 9 radon tests from it are on file with CDC (2020). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
59.6%
Boyd County
4 of 8 neighbours have 30+ tests, 2008 to 2017
Nearest county
41.9%
Brown County, 33 miles
Share at 4+ pCi/L, 62 tests, 2008 to 2017
Ground above low
100.0%
28.2 pts above Nebraska
Share of land USGS rates moderate or high potential
Tests reported
18
Too few for a share
2019
EPA radon zone
Zone 2
Moderate potential
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Keya Paha 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
Keya Paha County, At a glance
Predicted: EPA radon zone
Keya Paha County is a
USGS geologic potential: Moderate across 92% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 20.0% |
| 2015 | 0.0% |
| 2016 | 100.0% |
| 2017 | 0.0% |
| 2019 | 33.3% |
| 2020 | 66.7% |
2020: 66.7%. Across these years the share ran from 0.0% to 100.0%. Each column counts radon tests reported to CDC that year, not homes.
Only 9 tests were reported to CDC for Keya Paha County over 2020, 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: 2020. Measured data period: 2005 to 2020 (every CDC figure on file).
Keya Paha County, Compared
CDC's largest figure for Keya Paha County rests on 18 tests in 2019, 6 of them at or above 4 pCi/L, so each test moves its share by 5.6 points and no rank or comparison is drawn from it. Results reached as high as 6.2 pCi/L, with a middle value of 1.8 pCi/L.
Of the counties bordering it, 4 have a figure over the 2008 to 2017 laboratory totals: Boyd County reported the largest share at or above 4 pCi/L, 59.6%, and Cherry County the smallest, 13.3%, with Holt County at 42.7% and Brown County at 41.9% between. Farther out, Knox County (94 miles away) at 68.8%, Antelope County (97 miles away) at 71.3% and Valley County (98 miles away) at 52.4% have figures too. Pooled across 93 Nebraska counties, 58.5% of reported tests reached that level; across every county in the country with a figure, 35.7%.
Statewide for the same period, Clay County reported the highest share (85.1%) and Cherry County the lowest (13.3%). EPA's 1993 map puts Keya Paha County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 92% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Keya Paha County, Geology
Most of the ground under Keya Paha County is one class on USGS's geologic map: 92.2% of its land is moderate radon potential, with 7.8% high. The map puts 92.0% of Keya Paha County in the area it calls Pierre Shale and 7.8% in Sharon Springs. USGS gives the first a radon index of 11, in the moderate band (9 to 11), and the second 12, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Pierre Shale | Cretaceous marine shale | Moderate | 11 | 92.0% |
| Sharon Springs | Cretaceous Pierre Shale bedrock, including the uranium-bearing Sharon Springs Member. | High | 12 | 7.8% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Nebraska as a whole has more high-potential ground than Keya Paha County: 40.9% of its land, against 7.8% here. Of the 8 counties that border it, 1 has more high-potential ground, Boyd County the most at 95.1%.
The map rates the ground, not the air in any home.
Local help
Keya Paha County, Local resources
Some local programs distribute radon kits for free or a reduced cost.
If radon testing is done in schools, offices, or other places of work, it must be done by a licensed radon measurement business.
What it means
Keya Paha County, Questions
In 2020, 66.7% of the radon tests reported to CDC for Keya Paha County, Nebraska were at or above 4 pCi/L, and the median reported pre-mitigation result was 6.9 pCi/L. Of the counties bordering it, 4 have a figure over the 2008 to 2017 laboratory totals: Boyd County reported the largest share at or above 4 pCi/L, 59.6%, and Cherry County the smallest, 13.3%, with Holt County at 42.7% and Brown County at 41.9% between.
Keya Paha County borders 8 counties: Tripp County, SD, Brown County, NE, Rock County, NE, Gregory County, SD, Holt County, NE, Todd County, SD, Boyd County, NE and Cherry County, NE.
Products
Keya Paha County, Products
No CDC figure names Keya Paha County; the nearest county with one, Brown County (33 miles away), reported 41.9% 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 Keya Paha County; a long-term test tells the year-round average.
Test kits and monitors: 1 of 3
Explore
Keya Paha County, Bordering counties
100.0%at or above 4 pCi/L
Median 4.7 pCi/L · 1 test
66.7%at or above 4 pCi/L
Median 5.3 pCi/L · 15 tests
59.6%at or above 4 pCi/L
Median 4.6 pCi/L · 47 tests
55.6%at or above 4 pCi/L
Median 4.2 pCi/L · 9 tests
42.7%at or above 4 pCi/L
Median 3.3 pCi/L · 349 tests
41.9%at or above 4 pCi/L
Median 3.7 pCi/L · 62 tests
13.3%at or above 4 pCi/L
Median 1.7 pCi/L · 30 tests
4.2%at or above 4 pCi/L
Median 1.2 pCi/L · 24 tests
Keya Paha County, Cities and towns
The Census Bureau estimates 792 residents in Keya Paha County for July 1, 2025, 32 more than in 2020 (+4.2%). Spread over its land, that is 1.0 people to the square mile. Its largest town, Springview, has 241 residents, 30.4% of the total. Together its 2 incorporated places hold 31.8% of those residents; the other 68.2% live outside any of them. CDC's 18 reported tests for 2019 work out to 22.7 per 1,000 residents (2025 estimate), close to Nebraska's 25.7.
From Springview to Burton, CDC publishes no figure by town: each reads Keya Paha County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Springview | 241 | +3.9% | 30.4% |
| Burton | 11 | Level | 1.4% |
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).
Keya Paha County, Homes
Keya Paha County is a place of houses on their own lots: 90% of its 495 homes are detached single-family houses, against 72% across Nebraska. The homes are older than Nebraska's as a whole: half were built before 1967 (1975 for Nebraska), and 44% date from before 1960. Owners live in 80% of the occupied homes (Nebraska: 67%), so for most households a test and a fix are their own to order.
| Homes | Keya Paha County | Nebraska |
|---|---|---|
| Housing units | 495 | 855,631 |
| Detached houses | 90% | 72% |
| In buildings of 5 or more | 0% | 17% |
| Mobile homes | 6% | 3% |
| Built before 1960 | 44% | 32% |
| Built since 2000 | 25% | 22% |
| Middle year built | 1967 | 1975 |
| Owner-occupied | 80% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.