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 Vermilion Parish, Louisiana
EPA puts Vermilion Parish in Zone 3, its lowest radon zone, and only 3 radon tests from it are on file with CDC (2020). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Nearest county
0.0%
Calcasieu Parish, 67 miles
- Calcasieu Parish
- 0.0%
- Louisiana
- 2.8%
Share at 4+ pCi/L, 59 tests, 2006 to 2015
Ground above low
None
Level with Louisiana
- Vermilion Parish
- 0.0%
- Louisiana
- 0.0%
Share of land USGS rates moderate or high potential
Tests reported
12
Too few for a share
- Vermilion Parish
- 12
- Needed
- 30
2014
EPA radon zone
Zone 3
Lower potential
- 1
- 2
- Zone 3
1 highest, 3 lowest
EPA predicts under 2 pCi/L indoors
Read a result for Vermilion Parish
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
Vermilion Parish, At a glance
Vermilion 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 Vermilion Parish, 2020
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 0.0% |
| 2016 | 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
Only 3 tests were reported to CDC for Vermilion Parish over 2020, 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: 2020. Measured data period: 2014 to 2020 (every CDC figure on file).
Vermilion Parish, Compared
Vermilion Parish radon figures, compared
Calculated by Radon411CDC's largest figure for Vermilion Parish rests on 12 tests in 2014, 0 of them at or above 4 pCi/L, so each test moves its share by 8.3 points and no rank or comparison is drawn from it. Results reached as high as 1.5 pCi/L, with a middle value of 1.1 pCi/L.
The nearest counties with a figure are Calcasieu Parish (67 miles away) at 0.0%, East Baton Rouge Parish (88 miles away) at 0.0% and Tangipahoa Parish (127 miles away) at 0.0%. Pooled across 37 Louisiana counties, 2.8% of reported tests reached that level; across every county in the country with a figure, 36.3%.
Statewide for the same period, Jefferson Parish reported the highest share (1.5%) and Tangipahoa Parish the lowest (0.0%). EPA's 1993 map puts Vermilion Parish in Zone 3, its lowest label: a predicted county average under 2 pCi/L. USGS geology rates 100% of the county's land low radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Vermilion Parish, Geology
The ground under Vermilion Parish
PredictedUSGS's geologic map puts all of Vermilion Parish's mapped land in one class: low radon potential. The map puts 92.7% of Vermilion Parish in the area it calls Delta and 7.0% in Terraces and Prairies. USGS gives the first a radon index of 6 and the second 8, both in the low band (5 to 8).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Delta | Alluvium and marsh. | Low | 6 | 92.7% |
| Terraces and Prairies | Clay, sandy clay, silt, sand, and some gravel. | Low | 8 | 7.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Vermilion Parish beside the ground around it
Neither Vermilion 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
Vermilion Parish, Local resources
Radon testing and mitigation in Vermilion 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
Vermilion Parish, Questions
Questions about radon in Vermilion Parish
Are radon levels high in Vermilion Parish?
In 2020, 0.0% of the radon tests reported to CDC for Vermilion Parish, Louisiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 1.1 pCi/L. Of the 4 nearest counties with a figure, within 132 miles, the share of tests at or above 4 pCi/L runs from 0.0% to 1.5%.
Which counties border Vermilion Parish?
Vermilion Parish borders 5 parishes: Lafayette Parish, Acadia Parish, Iberia Parish, Jefferson Davis Parish and Cameron Parish.
Products
Vermilion Parish, Products
Testing a home in Vermilion Parish
No CDC figure names Vermilion Parish; the nearest county with one, Calcasieu Parish (67 miles away), reported 0.0% 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. 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 Vermilion 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
EcoQube Wi-Fi continuous radon monitor
- C-NRPP 2024/25: Approved
- Plug-in
- Wi-Fi
- App only
Method: Ion chamber
First reading: Within 10 minutes
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Explore
Vermilion Parish, Bordering parishes
Parishes bordering Vermilion Parish
Calculated by Radon411- Radon levels in Lafayette ParishEPA zone 3
4.8%at or above 4 pCi/L
Median 0.7 pCi/L · 21 tests
- Radon levels in Acadia ParishEPA zone 3
0.0%at or above 4 pCi/L
Median 0.7 pCi/L · 1 test
- Radon levels in Iberia ParishEPA zone 3
0.0%at or above 4 pCi/L
Median 2.0 pCi/L · 4 tests
- Radon levels in Cameron ParishEPA zone 3
0.0%at or above 4 pCi/L
Median 0.1 pCi/L · 1 test
- Radon levels in Jefferson Davis ParishEPA zone 3
No CDC figure for 2006 to 2015; its page reads it against its own neighbours.
Vermilion Parish, Cities and towns
Cities and towns in Vermilion Parish
The Census Bureau estimates 57,671 residents in Vermilion Parish for July 1, 2025, 712 more than in 2020 (+1.3%). That works out to 49 people per square mile of land. No town dominates: Abbeville, the largest, has 10,861 residents, 18.8% of the total. Testing is reported here more often than across the state: CDC's 12 reported tests for 2014 come to 0.2 for every 1,000 residents (2025 estimate), against 0.1 for Louisiana.
From Abbeville to Gueydan, CDC publishes no figure by town: each reads Vermilion Parish's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Abbeville | 10,861 | −2.7% | 18.8% |
| Kaplan | 4,116 | −5.0% | 7.1% |
| Maurice | 3,215 | +47.1% | 5.6% |
| Erath | 1,932 | −4.5% | 3.4% |
| Delcambreextends beyond Vermilion Parish | 1,766 | −2.2% | Counted whole |
| Gueydan | 1,122 | −3.4% | 1.9% |
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). A place that extends beyond Vermilion Parish is counted whole, so it has no share.
Vermilion Parish, Homes
Homes in Vermilion Parish
Of Vermilion Parish's 25,924 homes, 73% are detached houses, against 65% across Louisiana; 19% are mobile homes. Half of its homes were built before 1983, close to Louisiana's 1982: 24% date from before 1960 and 30% from 2000 or later. 74% 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 | Vermilion Parish | Louisiana |
|---|---|---|
| Housing units | 25,924 | 2,094,002 |
| Detached houses | 73% | 65% |
| In buildings of 5 or more | 4% | 11% |
| Mobile homes | 19% | 13% |
| Built before 1960 | 24% | 19% |
| Built since 2000 | 30% | 27% |
| Middle year built | 1983 | 1982 |
| Owner-occupied | 74% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.