Short-term kit
RA400 short-term liquid scintillation radon test kit, lab fee included
- Lab fee included
Method: Liquid scintillation
In home: 48 to 96 hours
Locations and reports
Radon Levels in Guadalupe County, New Mexico
EPA puts Guadalupe County in Zone 2, its middle radon zone. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
44.4%
San Miguel County
- San Miguel
- 44.4%
- Lincoln
- 20.6%
2 of 5 neighbours have 30+ tests, 2006 to 2015
Nearest county
44.4%
San Miguel County, 43 miles
- San Miguel
- 44.4%
- New Mexico
- 30.3%
Share at 4+ pCi/L, 36 tests, 2006 to 2015
Ground above low
100.0%
7.4 pts above New Mexico
- Guadalupe
- 100.0%
- New Mexico
- 92.6%
Share of land USGS rates moderate or high potential
Tests reported
0
None published
A home here needs its own test
EPA radon zone
Zone 2
Moderate potential
- 1
- Zone 2
- 3
1 highest, 3 lowest
EPA predicts 2 to 4 pCi/L indoors
Read a result for Guadalupe 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
Guadalupe County, At a glance
Guadalupe County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Guadalupe County is a
USGS geologic potential: Moderate across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
No CDC test figures here
CDC has published no radon test figures for Guadalupe County. Of the counties bordering it, 2 have a figure over the 2006 to 2015 laboratory totals: San Miguel County reported the largest share at or above 4 pCi/L, 44.4%, and Lincoln County the smallest, 20.6%.
Guadalupe County, Compared
Guadalupe County radon figures, compared
Calculated by Radon411Guadalupe County has no radon test figure of its own from CDC, whose counts over the 2006 to 2015 laboratory totals name 30 other New Mexico counties and leave it out. 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%.
Of the counties bordering it, 2 have a figure over the 2006 to 2015 laboratory totals: San Miguel County reported the largest share at or above 4 pCi/L, 44.4%, and Lincoln County the smallest, 20.6%. Farther out, Santa Fe County (80 miles away) at 32.5%, Bernalillo County (107 miles away) at 25.2% and Los Alamos County (110 miles away) at 38.3% have figures too. 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 Guadalupe County in Zone 2, its middle label: a predicted county average between 2 and 4 pCi/L. USGS geology rates 100% of the county's land moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Guadalupe County, Geology
The ground under Guadalupe County
PredictedUSGS's geologic map puts all of Guadalupe County's mapped land in one class: moderate radon potential. The map puts 84.0% of Guadalupe County in the area it calls Great Plains Pecos Valley Section and 15.6% in Basin and Range Sacramento Section. USGS gives the first a radon index of 9 and the second 10, both in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Great Plains Pecos Valley Section | Triassic sandstone, siltstone, mudstone, Quaternary alluvial and eolian sand and silt. | Moderate | 9 | 84.0% |
| Basin and Range Sacramento Section | Paleozoic marine limestones and shales. | Moderate | 10 | 15.6% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Guadalupe County beside the ground around it
Across New Mexico 19.2% of the land is rated high; none of Guadalupe County's is. Of the 5 counties that border it, 3 have more high-potential ground, San Miguel County the most at 16.9%.
The map rates the ground, not the air in any home.
Local help
Guadalupe County, Local resources
Radon testing and mitigation in Guadalupe County
- New Mexico Indoor Radon Outreach ProgramNew Mexico Indoor Radon Outreach Program, run by New Mexico Environment Department, does not license radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in New Mexico.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
The New Mexico Environment Department seasonally distributes free radon testing kits to the public on a first-come, first-served basis.
- Compare kits
- See the New Mexico directoryNo professionals are listed in New Mexico yet. The state program can point you to registered testers and mitigators.
What New Mexico's program says
- Phone
- (505) 476-8600
- radon.questions@env.nm.gov
- Licensing of radon professionals
There is not currently a certification program within the state.
What it means
Guadalupe County, Questions
Questions about radon in Guadalupe County
Are radon levels high in Guadalupe County?
No CDC testing statistics are published here for Guadalupe County, New Mexico yet. Of the counties bordering it, 2 have a figure over the 2006 to 2015 laboratory totals: San Miguel County reported the largest share at or above 4 pCi/L, 44.4%, and Lincoln County the smallest, 20.6%.
Which counties border Guadalupe County?
Guadalupe County borders 5 counties: De Baca County, San Miguel County, Quay County, Torrance County and Lincoln County.
Products
Guadalupe County, Products
Testing a home in Guadalupe County
No CDC figure names Guadalupe County; the nearest county with one, San Miguel County (43 miles away), reported 44.4% 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 Guadalupe County; a long-term test tells the year-round average.
Test kits and monitors3
See every kit and monitor
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
Monitor
RadonPro Wi-Fi radon monitor with a built-in Geiger counter
- C-NRPP 2024/25: Not included
- Plug-in
- Wi-Fi
- Alarm
- Screen, app
First reading: Within 5 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Guadalupe County, Bordering counties
Counties bordering Guadalupe County
Calculated by Radon411- Radon levels in Quay CountyEPA zone 2
66.7%at or above 4 pCi/L
Median 5.0 pCi/L · 3 tests
- Radon levels in San Miguel CountyEPA zone 1
44.4%at or above 4 pCi/L
Median 3.5 pCi/L · 36 tests
- Radon levels in Lincoln CountyEPA zone 2
20.6%at or above 4 pCi/L
Median 1.9 pCi/L · 34 tests
- Radon levels in Torrance CountyEPA zone 2
10.0%at or above 4 pCi/L
Median 2.0 pCi/L · 10 tests
- Radon levels in De Baca CountyEPA zone 2
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Guadalupe County, Cities and towns
Cities and towns in Guadalupe County
About 4,343 people live in Guadalupe County by the Census Bureau's estimate for July 1, 2025, 97 fewer than in 2020 (−2.2%). Spread over its land, that is 1.4 people to the square mile. Santa Rosa alone is home to 2,802 of them, 64.5% of the total. Together its 2 incorporated places hold 70.8% of those residents; the other 29.2% live outside any of them. CDC publishes no radon test count for Guadalupe County; across New Mexico its counts for 2006 to 2015 come to 2.0 tests for every 1,000 residents (2025 estimate).
From Santa Rosa to Vaughn, CDC publishes no figure by town: each reads Guadalupe County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Santa Rosa | 2,802 | −1.7% | 64.5% |
| Vaughn | 272 | −2.9% | 6.3% |
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).
Guadalupe County, Homes
Homes in Guadalupe County
Of Guadalupe County's 2,156 homes, 61% are detached houses, against 65% across New Mexico; 27% are mobile homes. The homes are older than New Mexico's as a whole: half were built before 1975 (1984 for New Mexico), and 34% date from before 1960. Owners live in 78% of the occupied homes (New Mexico: 69%), so for most households a test and a fix are their own to order.
| Homes | Guadalupe County | New Mexico |
|---|---|---|
| Housing units | 2,156 | 949,524 |
| Detached houses | 61% | 65% |
| In buildings of 5 or more | 2% | 10% |
| Mobile homes | 27% | 16% |
| Built before 1960 | 34% | 17% |
| Built since 2000 | 15% | 24% |
| Middle year built | 1975 | 1984 |
| Owner-occupied | 78% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.