Is radon high in Baton Rouge, Louisiana?

Low. Averaging the model's ZIP-code predictions across Baton Rouge (weighted by how much of the city each ZIP covers) gives a long-term basement mean of 1.3 pCi/L - about 30% below the US average of 1.8 and close to the Louisiana average of 1.4. That is below the EPA's 2 pCi/L "consider fixing" threshold, though individual homes still vary. Baton Rouge ranks 7 of 9 Louisiana cities on this site.

Which Baton Rouge ZIP codes have the highest radon?

Predictions for the 13 modeled ZIP codes in Baton Rouge range from 1.1 to 1.4 pCi/L in the basement. 0% of them are predicted at or above 4 pCi/L and 0% at or above 2. The city is fairly uniform, so the city-wide number is a reasonable guide for any neighborhood.

Should I test for radon in Baton Rouge?

Yes, once. The EPA recommends testing every home regardless of area. A short-term kit costs little and settles the question for your house; Baton Rouge's low predicted average describes the typical home, not yours.

What does EPA Radon Zone 3 mean for Baton Rouge?

Baton Rouge sits mainly in East Baton Rouge Parish, which the EPA classifies as Zone 3 - low potential (< 2 pCi/L). The zone map dates from 1993 and covers whole counties. The 2001-2021 model agrees with the zone for the city. Neither replaces a test of your own home.

Radon levels in Baton Rouge, Louisiana

LowEPA Zone 3

Predicted long-term basement average of 1.3 pCi/L (model estimate) across the 13 modeled ZIP codes in Baton Rouge - about 30% below the US average of 1.8, close to the Louisiana average of 1.4. Ranked #7 of 9 Louisiana cities on this site. Most of the city lies in East Baton Rouge Parish.

Test Baton Rouge, LA once anyway - radon varies house to house

The predicted basement average here is 1.3 pCi/L, below the EPA's 2 pCi/L "consider fixing" threshold. That's good news for the area - but the EPA still recommends every home be tested, because foundation cracks, soil pockets and ventilation make one house very different from its neighbor. One inexpensive kit settles it.

Get a short-term test kit →Or track it with a continuous monitor

We may earn a commission from Amazon at no extra cost to you.

Predicted (model estimate). The pCi/L figures on this page are long-term area averages from a peer-reviewed national model built on millions of real radon tests (2001-2021). They describe the typical home in this area - not your home, which can be several times higher or lower. The EPA radon zone is a separate, 1993 county-level classification. How the numbers work.

1.3 ± 0.07

pCi/L predicted basement mean (model SD)

0.6 ± 0.09

pCi/L predicted upstairs (above-ground) mean

1.1-1.4

range of ZIP-level basement predictions in the city

of Baton Rouge ZIPs predicted ≥ 4 pCi/L (0% ≥ 2)

What this means for Baton Rouge

The typical Baton Rouge home is predicted below 2 pCi/L, the lowest band. That describes the average house; the ZIP-level predictions inside the city still span 1.1 to 1.4 pCi/L.

The city figure is not a separate estimate: it is the mean of the model's ZIP-code predictions, weighted by the share of the city's land in each ZIP (Census 2020 ZCTA-to-place relationship file). The 1993 EPA zone (3) for East Baton Rouge Parish and the 2001-2021 model agree here.

Comparable Louisiana cities: New Orleans (1.3), Metairie (1.2), Lake Charles (1.3), Kenner (1.2).

ZIP codes in Baton Rouge

ZIPs that overlap the city, largest share of its land first. Predicted basement and upstairs means are model estimates; ZIPs the model does not cover show a dash.

ZIP	Share of city	Basement	Upstairs	Grade
70820	16%	1.3 ± 0.07	0.6	Low
70808	14%	1.4 ± 0.06	0.6	Low
70815	11%	1.3 ± 0.07	0.6	Low
70806	10%	1.3 ± 0.07	0.6	Low
70807	10%	1.2 ± 0.07	0.6	Low
70805	9%	1.1 ± 0.07	0.5	Low
70802	8%	1.1 ± 0.07	0.6	Low
70816	8%	1.3 ± 0.07	0.6	Low
70814	4%	1.3 ± 0.07	0.6	Low
70809	4%	1.3 ± 0.06	0.6	Low
70810	2%	1.4 ± 0.07	0.6	Low
70819	2%	1.4 ± 0.06	0.6	Low
70811	1%	1.4 ± 0.06	0.6	Low
70813	1%	—	—	no model
70803	<1%	—	—	no model
70836	<1%	—	—	no model
70801	<1%	—	—	no model
70825	<1%	—	—	no model

Testing help in Louisiana

We link only state program pages we could verify, and Louisiana's did not respond when we checked, so start from the EPA state radon contacts page. If a test comes back at 4 pCi/L or higher, mitigation typically costs $800-$2,500 installed; use EPA find-a-professional and read the mitigation guide.

Baton Rouge radon questions

Is radon high in Baton Rouge, Louisiana?: Low. Averaging the model's ZIP-code predictions across Baton Rouge (weighted by how much of the city each ZIP covers) gives a long-term basement mean of 1.3 pCi/L - about 30% below the US average of 1.8 and close to the Louisiana average of 1.4. That is below the EPA's 2 pCi/L "consider fixing" threshold, though individual homes still vary. Baton Rouge ranks 7 of 9 Louisiana cities on this site.
Which Baton Rouge ZIP codes have the highest radon?: Predictions for the 13 modeled ZIP codes in Baton Rouge range from 1.1 to 1.4 pCi/L in the basement. 0% of them are predicted at or above 4 pCi/L and 0% at or above 2. The city is fairly uniform, so the city-wide number is a reasonable guide for any neighborhood.
Should I test for radon in Baton Rouge?: Yes, once. The EPA recommends testing every home regardless of area. A short-term kit costs little and settles the question for your house; Baton Rouge's low predicted average describes the typical home, not yours.
What does EPA Radon Zone 3 mean for Baton Rouge?: Baton Rouge sits mainly in East Baton Rouge Parish, which the EPA classifies as Zone 3 - low potential (< 2 pCi/L). The zone map dates from 1993 and covers whole counties. The 2001-2021 model agrees with the zone for the city. Neither replaces a test of your own home.

← All Louisiana counties and cities · East Baton Rouge Parish · How to test · Methodology