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
Locations and reports
Radon Levels in Eureka County, Nevada
EPA puts Eureka County in Zone 1, its highest radon zone, and only 6 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
40.3%
Elko County
- Elko
- 40.3%
- Nye
- 11.1%
3 of 4 neighbours have 30+ tests, 2008 to 2017
Nearest county
39.1%
White Pine County, 82 miles
- White Pine
- 39.1%
- Nevada
- 22.8%
Share at 4+ pCi/L, 69 tests, 2008 to 2017
Ground above low
100.0%
7.9 pts above Nevada
- Eureka
- 100.0%
- Nevada
- 92.1%
Share of land USGS rates moderate or high potential
Tests reported
6
Too few for a share
- Eureka
- 6
- Needed
- 30
2008 to 2017, laboratory
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Read a result for Eureka 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
Eureka County, At a glance
Eureka County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Eureka County in
USGS geologic potential: Moderate across 75% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Eureka County, 2008 to 2017, laboratory
CDC holds 6 reported tests for Eureka County over the 2008 to 2017 laboratory totals, with a median of 0.1 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Eureka County beside the counties around it is how this page reads it.
What these figures count
Only 6 tests were reported to CDC for Eureka 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).
Eureka County, Compared
Eureka County radon figures, compared
Calculated by Radon411CDC's largest figure for Eureka County rests on 6 tests over the 2008 to 2017 laboratory totals, 0 of them at or above 4 pCi/L, so each test moves its share by 16.7 points and no rank or comparison is drawn from it. Results reached as high as 1.3 pCi/L, with a middle value of 0.1 pCi/L.
Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Elko County reported the largest share at or above 4 pCi/L, 40.3%, and Nye County the smallest, 11.1%, with White Pine County at 39.1% between. Farther out, Churchill County (113 miles away) at 12.4%, Humboldt County (138 miles away) at 32.3% and Lyon County (170 miles away) at 30.4% have figures too. Pooled across 16 Nevada counties, 22.8% of reported tests reached that level; across every county in the country with a figure, 35.7%.
Statewide for the same period, Carson City reported the highest share (40.6%) and Clark County the lowest (8.1%). EPA's 1993 map puts Eureka County in Zone 1, the map's highest label: a predicted county average above 4 pCi/L. USGS geology rates 75% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Eureka County, State data
Nevada's own radon test data
MeasuredWhat Nevada's own agencies publish about radon tests in Eureka County, with their period. These are not CDC's figures and are never added to them.
MeasuredState figures, not CDC's
What the Nevada Radon Education Program reports for the ZIP codes in Eureka County
The Nevada Radon Education Program publishes its figures by ZIP code, not by county. These are the 4 ZIP codes that lie wholly or partly in Eureka County, each with the state's own figures for it. Period: 1989-2015.
| ZIP code | What the state reports |
|---|---|
| 89316 | average 5.9 pCi/L |
| 89820 | average 2.2 pCi/L |
| 89821 | average 1.8 pCi/L |
| 89822 | average 4.3 pCi/L |
- NBMG says the results are based on independently tested homes, not scientific sampling.
- The service publishes an average for each ZIP code but no count of tests.
- Site specific testing is the only way to determine local radon concentrations.
- A ZIP code that crosses the county line is listed whole; its figures cover all of it.
Measured: Nevada Radon Education Program data, 1989-2015.
Eureka County, Geology
The ground under Eureka County
PredictedMost of the ground under Eureka County is one class on USGS's geologic map: 75.5% of its land is moderate radon potential, with 24.5% high. The map puts 75.5% of Eureka County in the area it calls Great Basin and 24.5% in Great Basin. 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 |
|---|---|---|---|---|
| Great Basin | Sandstone, shale, limestone, mafic volcanic rocks. | Moderate | 11 | 75.5% |
| Great Basin | Cenozoic tuffaceous sedimentary rocks.Local areas of uranium-rich rhyolite. | High | 12 | 24.5% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Eureka County beside the ground around it
On high-potential ground Eureka County is close to Nevada as a whole: 24.5% of its land against 17.3%. Of the 4 counties that border it, 2 have more high-potential ground, Lander County the most at 34.0%.
The map rates the ground, not the air in any home.
Local help
Eureka County, Local resources
Radon testing and mitigation in Eureka County
- Nevada Radon Education ProgramNevada Radon Education Program, run by University Of Nevada, Reno, offers free or discounted test kits, and answers questions about testing and mitigation in Nevada.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
The program offers literature, maps, educational presentations and low-cost radon test kits.
- Compare kits
- Professionals in Nevada20 professionals are listed in Nevada.
What Nevada's program says
- chrisk@unr.edu
What it means
Eureka County, Questions
Questions about radon in Eureka County
Are radon levels high in Eureka County?
Over the 2008 to 2017 laboratory totals, 0.0% of the radon tests reported to CDC for Eureka County, Nevada were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.1 pCi/L. Of the counties bordering it, 3 have a figure over the 2008 to 2017 laboratory totals: Elko County reported the largest share at or above 4 pCi/L, 40.3%, and Nye County the smallest, 11.1%, with White Pine County at 39.1% between.
Which counties border Eureka County?
Eureka County borders 4 counties: Lander County, White Pine County, Elko County and Nye County.
Products
Eureka County, Products
Testing a home in Eureka County
No CDC figure names Eureka County; the nearest county with one, White Pine County (82 miles away), reported 39.1% 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 1 the year-round level in Eureka 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
RM-65 rechargeable radon detector with a color screen and alarm
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
Short-term kit
RA100 short-term liquid scintillation radon test kit
- Lab fee extra
Method: Liquid scintillation
In home: 48 to 96 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Eureka County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Eureka County
Explore
Eureka County, Bordering counties
Counties bordering Eureka County
Calculated by Radon411- Radon levels in Elko CountyEPA zone 2
40.3%at or above 4 pCi/L
Median 3.1 pCi/L · 159 tests
- Radon levels in White Pine CountyEPA zone 1
39.1%at or above 4 pCi/L
Median 3.1 pCi/L · 69 tests
- Radon levels in Lander CountyEPA zone 1
29.4%at or above 4 pCi/L
Median 2.8 pCi/L · 17 tests
- Radon levels in Nye CountyEPA zone 2
11.1%at or above 4 pCi/L
Median 1.3 pCi/L · 81 tests
Eureka County, Residents
Who lives in Eureka County
The Census Bureau estimates 1,867 residents in Eureka County for July 1, 2025, 15 more than in 2020 (+0.8%). Spread over its land, that is 0.4 people to the square mile. CDC's 6 reported tests for 2008 to 2017 work out to 3.2 per 1,000 residents (2025 estimate), close to Nevada's 3.3.
Census lists no incorporated place in Eureka County: every home in it reads the county's figures.
Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).
Eureka County, Homes
Homes in Eureka County
Mobile homes are 57% of Eureka County's 1,020 homes and detached houses 39%, against 60% across Nevada. The homes are older than Nevada's as a whole: half were built before 1983 (1996 for Nevada), and 17% date from before 1960. Owners live in 85% of the occupied homes (Nevada: 59%), so for most households a test and a fix are their own to order.
| Homes | Eureka County | Nevada |
|---|---|---|
| Housing units | 1,020 | 1,307,338 |
| Detached houses | 39% | 60% |
| In buildings of 5 or more | 0% | 22% |
| Mobile homes | 57% | 6% |
| Built before 1960 | 17% | 5% |
| Built since 2000 | 33% | 40% |
| Middle year built | 1983 | 1996 |
| Owner-occupied | 85% | 59% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.