Short-term kit
PicoCan short-term charcoal canister radon test
- Lab fee included
Method: Charcoal
In home: 48 to 96 hours
Locations and reports
Radon Levels in Natchitoches Parish, Louisiana
EPA puts Natchitoches Parish in Zone 3, its lowest radon zone, and most reported tests there come back low, though 0.0% of 168 (2021) 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%
3.9 pts below LA
- Natchitoches Parish
- 0.0%
- Louisiana
- 3.9%
168 tests, 2021
Median result
0.5pCi/L
Below action level
- Natchitoches Parish
- 0.5 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2021
Tests reported
168
9th of 14 by tests
- Natchitoches Parish
- 168
- Ascension Parish
- 522
Reported to CDC before any fix, 2021
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 14
Top quarter
- Natchitoches Parish
- 0.0%
- Caddo Parish
- 20.1%
By share, of 14 with 30+ tests
Read a result for Natchitoches Parish
Starts at Natchitoches Parish's median, 0.5 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 0.5 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. Natchitoches Parish's median reported result, 2021.
The data
Natchitoches Parish, At a glance
Natchitoches 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 Natchitoches Parish, 2021
Under 2 pCi/L: 100%2 to 4 pCi/L: 0%4 pCi/L and above: 0%
Of 168 pre-mitigation tests reported to CDC, not homes in this area.
| Result band | Tests Measured | Share Measured |
|---|---|---|
| Under 2 pCi/L | 168 | 100.0% |
| 2 to 4 pCi/L | 0 | 0.0% |
| 4 pCi/L and above | 0 | 0.0% |
What these figures count
These are the 168 tests reported to CDC for Natchitoches Parish over 2021, 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: 2021. Measured data period: 2005 to 2021 (every CDC figure on file).
Natchitoches Parish, Compared
Natchitoches Parish radon figures, compared
Calculated by Radon411Only 0 of 168 radon tests reported for Natchitoches Parish in 2021 reached 4 pCi/L (0.0%). The median result, 0.5 pCi/L, sits below 2, well under EPA's 4 pCi/L action level, and the top reported result was 1.1 pCi/L.
Across 21 Louisiana counties pooled together, 3.9% of tests reached that level, so Natchitoches Parish runs 3.9 points below its state. Against the national pool of 24.4%, the gap is 24.4 points lower. Its place in the state: 3rd of 14 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. Rapides Parish, the one bordering county with a figure for the same period, reported 0.0%.
Below the action level, 168 tests (100.0%) came in under 2 pCi/L, against 92.3% statewide, and 0 tests (0.0%) fell between 2 and 4, against 3.8% statewide. USGS geology rates 100% of the county's land low radon potential.
CDC's ten-year totals for Natchitoches Parish went from 4 tests (2005 to 2014) to 4 (2008 to 2017), the share going from 0.0% to 0.0%.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Natchitoches Parish, Geology
The ground under Natchitoches Parish
PredictedUSGS's geologic map puts all of Natchitoches Parish's mapped land in one class: low radon potential. The map puts 82.2% of Natchitoches Parish in the area it calls Old Uplands and 17.8% in Terraces and Prairies. USGS gives the first a radon index of 7 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 |
|---|---|---|---|---|
| Old Uplands | Clays, silts, sands, and ironstone. | Low | 7 | 82.2% |
| Terraces and Prairies | Clay, sandy clay, silt, sand, and some gravel. | Low | 8 | 17.8% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Natchitoches Parish beside the ground around it
Neither Natchitoches Parish nor Louisiana as a whole has any land USGS rates above low potential. None of the 8 parishes that border it has any moderate-potential ground either.
The map rates the ground, not the air in any home.
Local help
Natchitoches Parish, Local resources
Radon testing and mitigation in Natchitoches 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
Natchitoches Parish, Questions
Questions about radon in Natchitoches Parish
Are radon levels high in Natchitoches Parish?
In 2021, 0.0% of the radon tests reported to CDC for Natchitoches Parish, Louisiana were at or above 4 pCi/L, and the median reported pre-mitigation result was 0.5 pCi/L. Of 14 Louisiana counties with 30 or more tests for the same period, 2 reported a higher share; pooled, the state comes to 3.9%.
Which counties border Natchitoches Parish?
Natchitoches Parish borders 8 parishes: Sabine Parish, Red River Parish, Winn Parish, Grant Parish, De Soto Parish, Bienville Parish, Vernon Parish and Rapides Parish.
Products
Natchitoches Parish, Products
Testing a home in Natchitoches Parish
In Natchitoches Parish, 0.0% of 168 tests reported to CDC in 2021 reached 4 pCi/L, against 3.9% 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 Natchitoches 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
MonitorX-Sense
XR0A-SR battery digital radon detector with a 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
Natchitoches Parish, Bordering parishes
Parishes bordering Natchitoches Parish
Calculated by Radon411- Radon levels in Red River ParishEPA zone 3
0.0%at or above 4 pCi/L
Median 0.6 pCi/L · 3 tests · 0.0 points above Natchitoches Parish
- Radon levels in Vernon ParishEPA zone 3
0.0%at or above 4 pCi/L
Median 1.4 pCi/L · 3 tests · 0.0 points above Natchitoches Parish
- Radon levels in Rapides ParishEPA zone 3
0.0%at or above 4 pCi/L
Median 0.3 pCi/L · 192 tests · 0.0 points above Natchitoches Parish
- Radon levels in Sabine ParishEPA zone 3
No CDC figure for 2021; its page reads it against its own neighbours.
- Radon levels in Winn ParishEPA zone 3
No CDC figure for 2021; its page reads it against its own neighbours.
- Radon levels in Grant ParishEPA zone 3
No CDC figure for 2021; its page reads it against its own neighbours.
- Radon levels in De Soto ParishEPA zone 3
No CDC figure for 2021; its page reads it against its own neighbours.
- Radon levels in Bienville ParishEPA zone 3
No CDC figure for 2021; its page reads it against its own neighbours.
Natchitoches Parish, Cities and towns
Cities and towns in Natchitoches Parish
About 36,089 people live in Natchitoches Parish by the Census Bureau's estimate for July 1, 2025, 1,311 fewer than in 2020 (−3.5%). That works out to 29 people per square mile of land. Its largest town, Natchitoches, has 17,146 residents, 47.5% of the total. Together its 9 incorporated places hold 55.9% of those residents; the other 44.1% live outside any of them. Testing is reported here more often than across the state: CDC's 168 reported tests for 2021 come to 4.7 for every 1,000 residents (2025 estimate), against 0.7 for Louisiana.
From Natchitoches to Powhatan, CDC publishes no figure by town: each reads Natchitoches Parish's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Natchitoches | 17,146 | −5.2% | 47.5% |
| Campti | 879 | −0.8% | 2.4% |
| Provencal | 516 | −2.1% | 1.4% |
| Natchez | 490 | +0.2% | 1.4% |
| Goldonna | 416 | −2.3% | 1.2% |
| Clarence | 316 | −3.4% | 0.9% |
| Ashland | 188 | −2.6% | 0.5% |
| Robeline | 120 | −2.4% | 0.3% |
| Powhatan | 100 | −4.8% | 0.3% |
9 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).
Natchitoches Parish, Homes
Homes in Natchitoches Parish
Of Natchitoches Parish's 18,663 homes, 55% are detached houses, against 65% across Louisiana; 25% are mobile homes. Half of its homes were built before 1983, close to Louisiana's 1982: 15% date from before 1960 and 27% from 2000 or later. 62% 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 | Natchitoches Parish | Louisiana |
|---|---|---|
| Housing units | 18,663 | 2,094,002 |
| Detached houses | 55% | 65% |
| In buildings of 5 or more | 10% | 11% |
| Mobile homes | 25% | 13% |
| Built before 1960 | 15% | 19% |
| Built since 2000 | 27% | 27% |
| Middle year built | 1983 | 1982 |
| Owner-occupied | 62% | 67% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.