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 Floyd County, Texas
EPA puts Floyd 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
88.4%
61.1 pts above Texas
- Floyd
- 88.4%
- 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 Floyd 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
Floyd County, At a glance
Floyd County at a glance
Predicted: EPA radon zone
EPA Zone 2: moderate predicted potential
Floyd County is a
USGS geologic potential: Moderate across 88% 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 Floyd 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.
Floyd County, Compared
Floyd County radon figures, compared
Calculated by Radon411CDC's county radon counts over the 2007 to 2016 laboratory totals cover 140 Texas counties, and Floyd County is not among them: no year's figure and no ten-year laboratory total names 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 (70 miles away) at 71.4%, Potter County (98 miles away) at 20.0% and Midland County (158 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 Floyd 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 moderate radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Floyd County, Geology
The ground under Floyd County
PredictedMost of the ground under Floyd County is one class on USGS's geologic map: 88.4% of its land is moderate radon potential, with 11.6% low. The map puts 88.4% of Floyd County in the area it calls Northern High Plains and Plateaus and 11.6% in Central Texas. USGS gives the first a radon index of 10, in the moderate band (9 to 11), and the second 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Northern High Plains and Plateaus | Tertiary sandstone, siltstone, shale. | Moderate | 10 | 88.4% |
| Central Texas | Cretaceous through Quaternary marine sandstone, shale, chalk, limestone, siltstone, clay, and lignite. | Low | 7 | 11.6% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Floyd County beside the ground around it
Across Texas 0.5% of the land is rated high; none of Floyd County's is. Of the 7 counties that border it, 4 have more moderate-potential ground, Crosby County the most at 100%.
The map rates the ground, not the air in any home.
Local help
Floyd County, Local resources
Radon testing and mitigation in Floyd 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
Floyd County, Questions
Questions about radon in Floyd County
Are radon levels high in Floyd County?
No CDC testing statistics are published here for Floyd 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 Floyd County?
Floyd County borders 7 counties: Motley County, Hale County, Crosby County, Briscoe County, Swisher County, Dickens County and Lubbock County.
Products
Floyd County, Products
Testing a home in Floyd County
No CDC figure names Floyd 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 Floyd 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
Hello Radon C battery radon monitor with an e-ink screen
- C-NRPP 2024/25: Not included
- Battery
- Screen
Method: Alpha spectrometry
First reading: Within 24 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Floyd County, Bordering counties
Counties bordering Floyd County
Calculated by Radon411- Radon levels in Swisher CountyEPA zone 2
100.0%at or above 4 pCi/L
Median 7.8 pCi/L · 6 tests
- 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 Motley CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Crosby CountyEPA zone 2
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Briscoe CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
- Radon levels in Dickens CountyEPA zone 3
No CDC figure for 2007 to 2016; its page reads it against its own neighbours.
Floyd County, Cities and towns
Cities and towns in Floyd County
Floyd County has been losing residents: from 5,369 in 2020 to 4,881 on July 1, 2025, a fall of 9.1% by the Census Bureau's estimates. Spread over its land, that is 4.9 people to the square mile. Its largest town, Floydada, has 2,420 residents, 49.6% of the total. Together its 2 incorporated places hold 77.0% of those residents; the other 23.0% live outside any of them. CDC publishes no radon test count for Floyd County; across Texas its counts for 2007 to 2016 come to 0.1 tests for every 1,000 residents (2025 estimate).
From Floydada to Lockney, CDC publishes no figure by town: each reads Floyd County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Floydada | 2,420 | −9.0% | 49.6% |
| Lockney | 1,340 | −9.8% | 27.5% |
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).
Floyd County, Homes
Homes in Floyd County
Floyd County is a place of houses on their own lots: 92% of its 2,601 homes are detached single-family houses, against 65% across Texas. The homes are older than Texas' as a whole: half were built before 1960 (1990 for Texas), and 49% date from before 1960. Owners live in 75% of the occupied homes (Texas: 63%), so for most households a test and a fix are their own to order.
| Homes | Floyd County | Texas |
|---|---|---|
| Housing units | 2,601 | 11,890,808 |
| Detached houses | 92% | 65% |
| In buildings of 5 or more | 1% | 21% |
| Mobile homes | 3% | 7% |
| Built before 1960 | 49% | 13% |
| Built since 2000 | 5% | 37% |
| Middle year built | 1960 | 1990 |
| Owner-occupied | 75% | 63% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.