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Radon Levels in Luna County, New Mexico

EPA puts Luna County in Zone 2, its middle radon zone, and only 5 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

    16.3%

    Doña Ana County

    Doña Ana
    16.3%

    1 of 4 neighbours have 30+ tests, 2006 to 2015

  • Nearest county

    16.3%

    Doña Ana County, 55 miles

    Doña Ana
    16.3%
    New Mexico
    30.3%

    Share at 4+ pCi/L, 104 tests, 2006 to 2015

  • Ground above low

    11.7%

    80.9 pts below New Mexico

    Luna
    11.7%
    New Mexico
    92.6%

    Share of land USGS rates moderate or high potential

  • Tests reported

    16

    Too few for a share

    Luna
    16
    Needed
    30

    2005 to 2014, laboratory

  • EPA radon zone

    Zone 2

    Moderate potential

    1. 1
    2. Zone 2
    3. 3

    1 highest, 3 lowest

    EPA predicts 2 to 4 pCi/L indoors

Read a result for Luna County

Starts at EPA's action level

4.0pCi/L

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

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 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

Luna County, At a glance

Luna County at a glance

Predicted: EPA radon zone

EPA Zone 2: moderate predicted potential

Luna County is a county: EPA's forecast for it as a whole is an average indoor of 2 to 4 pCi/L (75 to 150 Bq/m³). It describes no single address, and homes above EPA's are found in every zone, this one included.

USGS geologic potential: Low across 88% of the county's area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Luna County, 2008 to 2017, laboratory

CDC holds 5 reported tests for Luna County over the 2008 to 2017 laboratory totals, with a median of 2.5 pCi/L: too few to describe a county (Radon411 reads a share from 30 tests up). Luna County beside the counties around it is how this page reads it.

What these figures count

Only 5 tests were reported to CDC for Luna 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).

How to read these figures

Luna County, Compared

Luna County radon figures, compared

Calculated by Radon411

CDC's largest figure for Luna County rests on 16 tests over the 2005 to 2014 laboratory totals, 5 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 6.6 pCi/L, with a middle value of 2.5 pCi/L.

Doña Ana County, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 16.3% of its tests at or above 4 pCi/L. Farther out, Otero County (121 miles away) at 10.7%, Lincoln County (171 miles away) at 20.6% and Bernalillo County (207 miles away) at 25.2% have figures too. Pooled across 30 New Mexico counties, 30.3% of reported tests reached that level; across every county in the country with a figure, 36.3%.

Statewide for the same period, Taos County reported the highest share (71.9%) and Otero County the lowest (10.7%). EPA's 1993 map puts Luna County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 88% of the county's land low radon potential.

New Mexico, the United States and the counties around Luna County, 2006 to 2015, laboratory
AreaTestsAt or above 4 pCi/LMedian
New Mexico, pooled30 counties, pooled4,25130.3%Not pooled
United States, pooled2,669 counties, pooled1,805,52836.3%Not pooled
Taos Countyhighest in the state9671.9%7.7 pCi/L
Otero Countylowest in the state5610.7%1.1 pCi/L
Grant County, NMborders it2040.0%2.2 pCi/L
Doña Ana County, NMborders it10416.3%1.4 pCi/L
Sierra County, NMborders it70.0%1.4 pCi/L
The nearest New Mexico counties to Luna County with 30 or more tests, 2006 to 2015, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Doña Ana County55 mi10416.3%1.4 pCi/L
Otero County121 mi5610.7%1.1 pCi/L
Lincoln County171 mi3420.6%1.9 pCi/L
Bernalillo County207 mi1,34225.2%2.1 pCi/L
McKinley County236 mi3141.9%2.9 pCi/L
Sandoval County247 mi15024.7%2.0 pCi/L
Santa Fe County251 mi2,01932.5%2.8 pCi/L
Lea County257 mi3611.1%1.9 pCi/L
Luna County ten-year laboratory totals, against New Mexico's pooled share
PeriodTestsAt or above 4 pCi/LMedianHighestNew Mexico, pooledChange from the row before
2008 to 2017540.0%2.5 pCi/L6.6 pCi/L28.5%+10.0 points
2007 to 20161030.0%2.8 pCi/L6.6 pCi/L30.0%Level
2006 to 20151030.0%2.8 pCi/L6.6 pCi/L30.3%−1.3 points
2005 to 20141631.3%2.5 pCi/L6.6 pCi/L29.7%First on file

Pooled shares: Radon411's sum of CDC's county counts for one period.

Luna County, Geology

The ground under Luna County

Predicted

Most of the ground under Luna County is one class on USGS's geologic map: 88.3% of its land is low radon potential, with 11.7% moderate. The map puts 88.3% of Luna County in the area it calls Basin and Range Southern Mexican Highland and 11.7% in Datil-Mogollon Volcanic Field. USGS gives the first a radon index of 8, in the low band (5 to 8), and the second 11, in the moderate band (9 to 11).

USGS's geologic areas under Luna County
AreaThe rock, in USGS's wordsPotentialRadon indexShare of land
Basin and Range Southern Mexican HighlandVolcanic, plutonic, and lesser sandstone, shale, limestone; Quaternary velley-fill alluvium.Low888.3%
Datil-Mogollon Volcanic FieldSilicic to intermediate volcanic and volcaniclastic rocks, basin-fill gravel, sand, silt.Moderate1111.7%

Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.

Luna County beside the ground around it

Across New Mexico 19.2% of the land is rated high; none of Luna County's is. Of the 4 counties that border it, 2 have more high-potential ground, Sierra County the most at 50.4%.

Share of land by USGS radon potential: Luna County, the 4 counties bordering it and New Mexico
AreaEPA zoneLow potentialModerate potentialHigh potential
Luna CountyZone 288.3%11.7%None
Grant CountyZone 217.8%82.2%None
Doña Ana CountyZone 239.4%17.4%43.2%
Hidalgo CountyZone 295.6%4.3%None
Sierra CountyZone 21.1%48.6%50.4%
New Mexico33 counties, pooled by land areaVaries7.4%73.4%19.2%

The map rates the ground, not the air in any home.

What it means

Luna County, Questions

Questions about radon in Luna County

Are radon levels high in Luna County?

Over the 2008 to 2017 laboratory totals, 40.0% of the radon tests reported to CDC for Luna County, New Mexico were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.5 pCi/L. Doña Ana County, the one bordering county with a figure over the 2006 to 2015 laboratory totals, reported 16.3% of its tests at or above 4 pCi/L.

Which counties border Luna County?

Luna County borders 4 counties: Grant County, Doña Ana County, Hidalgo County and Sierra County.

Products

Luna County, Products

Testing a home in Luna County

No CDC figure names Luna County; the nearest county with one, Doña Ana County (55 miles away), reported 16.3% of its tests at or above 4 pCi/L over the 2006 to 2015 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 Luna County; a long-term test tells the year-round average.

Test kits and monitors3

See every kit and monitor

Best radon monitors for Luna County homes, compared

Explore

Luna County, Bordering counties

Counties bordering Luna County

Calculated by Radon411

Luna County, Cities and towns

Cities and towns in Luna County

Luna County's population has barely moved since 2020: 25,407 residents on July 1, 2025 against 25,452 then, by the Census Bureau's estimates. Spread over its land, that is 8.6 people to the square mile. Deming alone is home to 14,944 of them, 58.8% of the total. Together its 2 incorporated places hold 64.7% of those residents; the other 35.3% live outside any of them. Reported testing is thin here: 16 tests over 2005 to 2014, or 0.6 for every 1,000 residents (2025 estimate), where New Mexico as a whole comes to 2.2.

From Deming to Columbus, CDC publishes no figure by town: each reads Luna County's.

The cities and towns in Luna County by residents, July 1, 2025
PlaceResidentsSince 2020Share of residents
Deming14,944−1.6%58.8%
Columbus1,484+3.1%5.8%

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).

Luna County, Homes

Homes in Luna County

Of Luna County's 11,567 homes, 56% are detached houses, against 65% across New Mexico; 32% are mobile homes. Half of its homes were built before 1979, close to New Mexico's 1984: 20% date from before 1960 and 16% from 2000 or later. 69% of occupied homes are lived in by their owner (New Mexico: 69%); in the rest a tenant can run a test, but a fix is the landlord's to make.

Homes in Luna County, New Mexico, 2019 to 2023
HomesLuna CountyNew Mexico
Housing units11,567949,524
Detached houses56%65%
In buildings of 5 or more6%10%
Mobile homes32%16%
Built before 196020%17%
Built since 200016%24%
Middle year built19791984
Owner-occupied69%69%

Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.