Short-term kitempowerDX
Standard Radon Test short-term mail-in radon test kit
- Lab fee included
Method: Passive sampler
In home: 48 to 96 hours
Locations and reports
Radon Levels in Lamb County, Texas
EPA puts Lamb 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
57.8%
Lubbock County
- Lubbock
- 57.8%
1 of 7 neighbours have 30+ tests, 2007 to 2016
Nearest county
57.8%
Lubbock County, 44 miles
- Lubbock
- 57.8%
- Texas
- 10.4%
Share at 4+ pCi/L, 128 tests, 2007 to 2016
Ground above low
100.0%
72.7 pts above Texas
- Lamb
- 100.0%
- Texas
- 27.3%
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 Lamb 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
Lamb County, At a glance
Lamb County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Lamb 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 Lamb County. Lubbock County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 57.8% of its tests at or above 4 pCi/L.
Lamb County, Compared
Lamb County radon figures, compared
Calculated by Radon411No CDC figure names Lamb County, in any year or ten-year total; over the 2007 to 2016 laboratory totals, the agency's counts reach 140 Texas counties without it. Pooled across 140 Texas counties, 10.4% of reported tests reached that level; across every county in the country with a figure, 35.8%.
Lubbock County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 57.8% of its tests at or above 4 pCi/L. Farther out, Randall County (67 miles away) at 71.4%, Potter County (95 miles away) at 20.0% and Midland County (153 miles away) at 1.0% have figures too. Statewide for the same period, Randall County reported the highest share (71.4%) and Nueces County the lowest (0.0%).
EPA's 1993 map puts Lamb 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.
Lamb County, Geology
The ground under Lamb County
PredictedUSGS's geologic map puts all of Lamb County's mapped land in one class: moderate radon potential. The map puts 84.4% of Lamb County in the area it calls Northern High Plains and Plateaus and 15.6% in Great Plains Pecos Valley Section. USGS gives the first a radon index of 10 and the second 9, both in the moderate band (9 to 11).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Northern High Plains and Plateaus | Tertiary sandstone, siltstone, shale. | Moderate | 10 | 84.4% |
| Great Plains Pecos Valley Section | Quaternary alluvial and eolian sand and silt. | Moderate | 9 | 15.6% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Lamb County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Lamb County's is. Of the 7 counties that border it, none has as large a share of moderate-potential ground; Castro County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Lamb County, Local resources
Radon testing and mitigation in Lamb County
- Texas Radon GroupTexas Radon Group, run by Texas Tech University, does not license radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in Texas.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
The Texas Radon Group offers free radon test kits for Texas individuals who qualify.
- Compare kits
- Professionals in Texas7 professionals are listed in Texas.
What Texas's program says
- Licensing of radon professionals
There are no radon certification requirements for the State of Texas at this time, but the National Radon Proficiency Program lists radon testers and mitigators within Texas that have passed a rigorous national certification program.
What it means
Lamb County, Questions
Questions about radon in Lamb County
Are radon levels high in Lamb County?
No CDC testing statistics are published here for Lamb County, Texas yet. Lubbock County, the one bordering county with a figure over the 2007 to 2016 laboratory totals, reported 57.8% of its tests at or above 4 pCi/L.
Which counties border Lamb County?
Lamb County borders 7 counties: Bailey County, Hale County, Hockley County, Castro County, Cochran County, Parmer County and Lubbock County.
Products
Lamb County, Products
Testing a home in Lamb County
No CDC figure names Lamb County; the nearest county with one, Lubbock County (44 miles away), reported 57.8% of its tests at or above 4 pCi/L over the 2007 to 2016 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 Lamb 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
MonitorKidde
Radon Detector (RAB) battery digital radon detector with an alarm
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 12 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Lamb County, Bordering counties
Counties bordering Lamb County
Calculated by Radon411- Radon levels in Parmer CountyEPA zone 2
100.0%at or above 4 pCi/L
Median 10.6 pCi/L · 1 test
- Radon levels in Hale CountyEPA zone 2
83.3%at or above 4 pCi/L
Median 7.8 pCi/L · 12 tests
- Radon levels in Lubbock CountyEPA zone 2
57.8%at or above 4 pCi/L
Median 4.8 pCi/L · 128 tests
- Radon levels in Hockley CountyEPA zone 2
0.0%at or above 4 pCi/L
Median 2.7 pCi/L · 1 test
- Radon levels in Castro CountyEPA zone 2
0.0%at or above 4 pCi/L
Median 3.6 pCi/L · 1 test
- Radon levels in Bailey CountyEPA zone 2
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Cochran CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Lamb County, Cities and towns
Cities and towns in Lamb County
About 12,579 people live in Lamb County by the Census Bureau's estimate for July 1, 2025, 426 fewer than in 2020 (−3.3%). That works out to 12 people per square mile of land. Its largest town, Littlefield, has 5,675 residents, 45.1% of the total. Together its 6 incorporated places hold 81.0% of those residents; the other 19.0% live outside any of them. CDC publishes no radon test count for Lamb County; across Texas its counts for 2007 to 2016 come to 0.1 tests for every 1,000 residents (2025 estimate).
From Littlefield to Springlake, CDC publishes no figure by town: each reads Lamb County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Littlefield | 5,675 | −4.2% | 45.1% |
| Olton | 1,913 | −3.2% | 15.2% |
| Sudan | 932 | −1.2% | 7.4% |
| Earth | 893 | −0.8% | 7.1% |
| Amherst | 640 | −3.8% | 5.1% |
| Springlake | 138 | −3.5% | 1.1% |
6 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).
Lamb County, Homes
Homes in Lamb County
Lamb County is a place of houses on their own lots: 86% of its 5,893 homes are detached single-family houses, against 65% across Texas. The homes are older than Texas' as a whole: half were built before 1966 (1990 for Texas), and 35% date from before 1960. 72% of occupied homes are lived in by their owner (Texas: 63%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Lamb County | Texas |
|---|---|---|
| Housing units | 5,893 | 11,890,808 |
| Detached houses | 86% | 65% |
| In buildings of 5 or more | 1% | 21% |
| Mobile homes | 9% | 7% |
| Built before 1960 | 35% | 13% |
| Built since 2000 | 9% | 37% |
| Middle year built | 1966 | 1990 |
| Owner-occupied | 72% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.