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 Livingston Parish, Louisiana
EPA puts Livingston Parish in Zone 3, its lowest radon zone, and most reported tests there come back low, though 0.0% of 96 (2020) reached 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
0.0%
0.8 pts below LA
- Livingston Parish
- 0.0%
- Louisiana
- 0.8%
96 tests, 2020
Median result
0.7pCi/L
Below action level
- Livingston Parish
- 0.7 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2020
Tests reported
96
6th of 13 by tests
- Livingston Parish
- 96
- Jefferson Parish
- 339
Reported to CDC before any fix, 2020
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
3 of 13
Top quarter
- Livingston Parish
- 0.0%
- Lafayette Parish
- 19.0%
By share, of 13 with 30+ tests
Read a result for Livingston Parish
Starts at Livingston Parish's median, 0.7 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 0.7 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. Livingston Parish's median reported result, 2020.
The data
Livingston Parish, At a glance
Livingston 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 Livingston Parish, 2020
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 0.0% |
| 2016 | 0.0% |
| 2017 | 0.0% |
| 2018 | 0.0% |
| 2019 | 0.0% |
| 2020 | 0.0% |
2020: 0.0%. Across these years the share ran from 0.0% to 0.0%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 96 tests reported to CDC for Livingston Parish over 2020, many from homes being sold or already suspected of a problem: they describe the parish's reported tests, not this house.
Measured: CDC tracking data. Figure above: 2020. Measured data period: 2005 to 2020 (every CDC figure on file).
Livingston Parish, Compared
Livingston Parish radon figures, compared
Calculated by Radon411Only 0 of 96 radon tests reported for Livingston Parish in 2020 reached 4 pCi/L (0.0%). The median result, 0.7 pCi/L, sits below 2, well under EPA's 4 pCi/L action level, and the top reported result was 0.9 pCi/L.
Across 18 Louisiana counties pooled together, 0.8% of tests reached that level, so Livingston Parish runs 0.8 points below its state. Against the national pool of 25.5%, the gap is 25.5 points lower. Its place in the state: 3rd of 13 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 0.0% share point the same way here. East Baton Rouge Parish, the one bordering county with a figure for the same period, reported 0.0%.
Below the action level, 96 tests (100.0%) came in under 2 pCi/L, against 94.9% statewide, and 0 tests (0.0%) fell between 2 and 4, against 4.2% statewide. Over 4 years of annual figures the share held within 2 points, from 0.0% in 2016 to 0.0% in 2020; its peak was 0.0% in 2016. USGS geology rates 100% of the county's land low radon potential.
The busiest year on file was 2020, with 96 tests reported; the quietest, 2014, had 3.
Livingston ParishLouisiana, pooled
| Year | Tests | Livingston Parish, at or above 4 pCi/L | Louisiana, pooled |
|---|---|---|---|
| 2016 | 48 | 0.0% | 2.0% |
| 2017 | 30 | 0.0% | 2.6% |
| 2019 | 51 | 0.0% | 2.0% |
| 2020 | 96 | 0.0% | 0.8% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Livingston Parish, Geology
The ground under Livingston Parish
PredictedUSGS's geologic map puts all of Livingston Parish's mapped land in one class: low radon potential. The map puts 65.0% of Livingston Parish in the area it calls Terraces and 33.9% in Delta, with one smaller area beside them. USGS gives the first a radon index of 8 and the second 6, both in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Terraces | Clays, siltstone, and sandstone. | Low | 8 | 65.0% |
| Delta | Alluvium and marsh. | Low | 6 | 33.9% |
| Floodplain | Alluvium, marsh, silt, and clay. | Low | 7 | 1.1% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Livingston Parish beside the ground around it
Neither Livingston Parish nor Louisiana as a whole has any land USGS rates above low potential. None of the 5 parishes that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Livingston Parish, Local resources
Radon testing and mitigation in Livingston 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
Livingston Parish, Questions
Questions about radon in Livingston Parish
Are radon levels high in Livingston Parish?
In 2020, 0.0% of the radon tests reported to CDC for Livingston Parish, Louisiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.7 pCi/L. Of 13 Louisiana counties with 30 or more tests for the same period, 2 reported a higher share; pooled, the state comes to 0.8%.
Which counties border Livingston Parish?
Livingston Parish borders 5 parishes: Ascension Parish, Tangipahoa Parish, East Baton Rouge Parish, St. John the Baptist Parish and St. Helena Parish.
Products
Livingston Parish, Products
Testing a home in Livingston Parish
In Livingston Parish, 0.0% of 96 tests reported to CDC in 2020 reached 4 pCi/L, against 0.8% 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 Livingston 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
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
Livingston Parish, Bordering parishes
Parishes bordering Livingston Parish
Calculated by Radon411- Radon levels in East Baton Rouge ParishEPA zone 3
0.0%at or above 4 pCi/L
Median 0.6 pCi/L · 192 tests · 0.0 points above Livingston Parish
- Radon levels in Ascension ParishEPA zone 3
No CDC figure for 2020; its page reads it against its own neighbours.
- Radon levels in Tangipahoa ParishEPA zone 3
No CDC figure for 2020; its page reads it against its own neighbours.
No CDC figure for 2020; its page reads it against its own neighbours.
- Radon levels in St. Helena ParishEPA zone 3
No CDC figure for 2020; its page reads it against its own neighbours.
Livingston Parish, Cities and towns
Cities and towns in Livingston Parish
Livingston Parish is growing: the Census Bureau puts it at 155,036 residents on July 1, 2025, up 8.5% from 142,833 in 2020. That works out to 239 people per square mile of land. No town dominates: Denham Springs, the largest, has 9,378 residents, 6.0% of the total. Together its 8 incorporated places hold 14.6% of those residents; the other 85.4% live outside any of them. Testing is reported here more often than across the state: CDC's 96 reported tests for 2020 come to 0.6 for every 1,000 residents (2025 estimate), against 0.4 for Louisiana.
From Denham Springs to Springfield, CDC publishes no figure by town: each reads Livingston Parish's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Denham Springs | 9,378 | +0.8% | 6.0% |
| Walker | 6,476 | +1.7% | 4.2% |
| Livingston | 2,006 | +6.9% | 1.3% |
| Killian | 1,260 | +7.9% | 0.8% |
| Albany | 1,244 | +0.6% | 0.8% |
| French Settlement | 1,166 | +9.2% | 0.8% |
| Port Vincent | 709 | +9.4% | 0.5% |
| Springfield | 463 | +8.4% | 0.3% |
8 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).
Livingston Parish, Homes
Homes in Livingston Parish
Of Livingston Parish's 58,899 homes, 69% are detached houses, against 65% across Louisiana; 23% are mobile homes. Much of Livingston Parish is recent building: 51% of its homes have gone up since 2000 and the middle year built is 2001, against 1982 for Louisiana. Owners live in 81% of the occupied homes (Louisiana: 67%), so for most households a test and a fix are their own to order.
| Homes | Livingston Parish | Louisiana |
|---|---|---|
| Housing units | 58,899 | 2,094,002 |
| Detached houses | 69% | 65% |
| In buildings of 5 or more | 5% | 11% |
| Mobile homes | 23% | 13% |
| Built before 1960 | 5% | 19% |
| Built since 2000 | 51% | 27% |
| Middle year built | 2001 | 1982 |
| Owner-occupied | 81% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.