Short-term kitKidde
442020 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 3 days
Locations and reports
Radon Levels in Bossier Parish, Louisiana
EPA puts Bossier Parish in Zone 3, its lowest radon zone, and only 3 radon tests from it are on file with CDC (2021). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
1.8%
0.8 pts below LA
- Bossier Parish
- 1.8%
- Louisiana
- 2.6%
168 tests, 2017
Median result
0.4pCi/L
Below action level
- Bossier Parish
- 0.4 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2017
Tests reported
168
4th of 10 by tests
- Bossier Parish
- 168
- Caddo Parish
- 435
Reported to CDC before any fix, 2017
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Rank in Louisiana
2 of 10
Top quarter
- Bossier Parish
- 1.8%
- Lafayette Parish
- 26.7%
By share, of 10 with 30+ tests
Read a result for Bossier Parish
Starts at Bossier Parish's median, 0.4 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 0.4 pCi/L
Below 2 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Bossier Parish's median reported result, 2017.
The data
Bossier Parish, At a glance
Bossier Parish at a glance
Predicted: EPA radon zone
EPA Zone 3: lower predicted potential
USGS geologic potential: Low across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Bossier Parish, 2021
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 0.0% |
| 2015 | 0.0% |
| 2016 | 0.0% |
| 2017 | 1.8% |
| 2018 | 11.1% |
| 2019 | 0.0% |
| 2020 | 0.0% |
| 2021 | 0.0% |
2021: 0.0%. Across these years the share ran from 0.0% to 11.1%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
Only 3 tests were reported to CDC for Bossier Parish over 2021, and tests are often run on homes being sold or already suspected of a problem: so few describe neither the parish nor this house.
Measured: CDC tracking data. Figure above: 2021. Measured data period: 2005 to 2021 (every CDC figure on file).
Bossier Parish, Compared
Bossier Parish radon figures, compared
Calculated by Radon411Only 3 of 168 radon tests reported for Bossier Parish in 2017 reached 4 pCi/L (1.8%). The median result, 0.4 pCi/L, sits below 2, well under EPA's 4 pCi/L action level, and the top reported result was 4.2 pCi/L.
The newest figure, in 2021, counts only 3 tests (0.0% at or above 4 pCi/L), too few to compare, so this reading uses the 168-test figure.
Across 23 Louisiana counties pooled together, 2.6% of tests reached that level, so Bossier Parish runs 0.8 points below its state. Against the national pool of 31.7%, the gap is 29.9 points lower. Its place in the state: 2nd of 10 Louisiana counties with 30 or more tests for the same period.
Zone 3 on EPA's map (predicted average under 2 pCi/L) and a 1.8% share point the same way here. Caddo Parish, the one bordering county with a figure for the same period, reported 0.0%.
Below the action level, 156 tests (92.9%) came in under 2 pCi/L, against 93.5% statewide, and 9 tests (5.4%) fell between 2 and 4, against 3.9% statewide. Over 3 years of annual figures the share held within 2 points, from 0.0% in 2016 to 0.0% in 2019; its peak was 1.8% in 2017. USGS geology rates 100% of the county's land low radon potential.
The busiest year on file was 2017, with 168 tests reported; the quietest, 2021, had 3.
Bossier ParishLouisiana, pooled
| Year | Tests | Bossier Parish, at or above 4 pCi/L | Louisiana, pooled |
|---|---|---|---|
| 2016 | 114 | 0.0% | 2.0% |
| 2017 | 168 | 1.8% | 2.6% |
| 2019 | 162 | 0.0% | 2.0% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Bossier Parish, Geology
The ground under Bossier Parish
PredictedUSGS's geologic map puts all of Bossier Parish's mapped land in one class: low radon potential. All of it lies in the area the map calls Old Uplands, to which USGS gives a radon index of 7, in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Old Uplands | Clays, silts, sands, and ironstone. | Low | 7 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Bossier Parish beside the ground around it
Neither Bossier Parish nor Louisiana as a whole has any land USGS rates above low potential. None of the 6 counties that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Bossier Parish, Local resources
Radon testing and mitigation in Bossier Parish
- Louisiana's radon programLouisiana Department of Environmental QualityLouisiana's radon program answers questions about testing, mitigation and the rules in Louisiana.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsAsk the program whether it has free or discounted kits, or compare kits you can buy.
- Compare kits
- See the Louisiana directoryNo professionals are listed in Louisiana yet. The state program can point you to registered testers and mitigators.
What it means
Bossier Parish, Questions
Questions about radon in Bossier Parish
Are radon levels high in Bossier Parish?
In 2021, 0.0% of the radon tests reported to CDC for Bossier Parish, Louisiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 2.7 pCi/L. Of 10 Louisiana counties with 30 or more tests for the same period, 1 reported a higher share; pooled, the state comes to 2.6%.
Which counties border Bossier Parish?
Bossier Parish borders 6 counties: Webster Parish, LA, Caddo Parish, LA, Bienville Parish, LA, Lafayette County, AR, Red River Parish, LA and Miller County, AR.
Products
Bossier Parish, Products
Testing a home in Bossier Parish
In Bossier Parish, 1.8% of 168 tests reported to CDC in 2017 reached 4 pCi/L, against 2.6% pooled across Louisiana. Zone 3 is the lowest label, yet homes at or above 4 pCi/L occur in every zone: a short-term kit (2 to 90 days) is the quick first check in Bossier Parish.
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
MonitorAEGTEST
HOUND-1085 palm-sized rechargeable radon detector
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Bossier Parish, Bordering counties
Counties bordering Bossier Parish
Calculated by Radon411- Radon levels in Caddo Parish, LAEPA zone 3
0.0%at or above 4 pCi/L
Median 0.4 pCi/L · 435 tests · 1.8 points below Bossier Parish
- Radon levels in Webster Parish, LAEPA zone 3
No CDC figure for 2017; its page reads it against its own neighbours.
- Radon levels in Bienville Parish, LAEPA zone 3
No CDC figure for 2017; its page reads it against its own neighbours.
- Radon levels in Lafayette County, AREPA zone 3
No CDC figure for 2017; its page reads it against its own neighbours.
- Radon levels in Red River Parish, LAEPA zone 3
No CDC figure for 2017; its page reads it against its own neighbours.
- Radon levels in Miller County, AREPA zone 3
No CDC figure for 2017; its page reads it against its own neighbours.
Bossier Parish, Cities and towns
Cities and towns in Bossier Parish
The Census Bureau estimates 131,867 residents in Bossier Parish for July 1, 2025, 3,220 more than in 2020 (+2.5%). That works out to 157 people per square mile of land. Shreveport, the largest place on its list (175,902 residents in all), extends beyond Bossier Parish, so no share of the total is worked out for it. Testing is reported here more often than across the state: CDC's 168 reported tests for 2017 come to 1.3 for every 1,000 residents (2025 estimate), against 0.3 for Louisiana.
From Shreveport to Plain Dealing, CDC publishes no figure by town: each reads Bossier Parish's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Shreveportextends beyond Bossier Parish | 175,902 | −5.8% | Counted whole |
| Bossier City | 63,259 | +0.9% | 48.0% |
| Haughton | 4,828 | +7.1% | 3.7% |
| Benton | 2,118 | +3.1% | 1.6% |
| Plain Dealing | 876 | −2.2% | 0.7% |
5 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). A place that extends beyond Bossier Parish is counted whole, so it has no share.
Bossier Parish, Homes
Homes in Bossier Parish
Of Bossier Parish's 56,122 homes, 68% are detached houses, against 65% across Louisiana; 12% are mobile homes. Half of its homes were built before 1989, close to Louisiana's 1982: 12% date from before 1960 and 38% from 2000 or later. 66% of occupied homes are lived in by their owner (Louisiana: 67%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Bossier Parish | Louisiana |
|---|---|---|
| Housing units | 56,122 | 2,094,002 |
| Detached houses | 68% | 65% |
| In buildings of 5 or more | 12% | 11% |
| Mobile homes | 12% | 13% |
| Built before 1960 | 12% | 19% |
| Built since 2000 | 38% | 27% |
| Middle year built | 1989 | 1982 |
| Owner-occupied | 66% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.