Natchitoches Parish, LA radon potential

Natchitoches Parish is mapped as Zone 3 - Low Potential by EPA — meaning the county-wide average indoor level is predicted below 2 pCi/L. Natchitoches Parish sits at the 19th percentile nationally for radon potential — above 19 of every 100 rated counties.

Where Natchitoches Parish sits nationally

Natchitoches Parish, Louisiana is home to about 35,982 people across 1,253.008 square miles. Averaged across its land area, Natchitoches Parish runs about 29 people per square mile. Within its own EPA zone, Natchitoches Parish is bigger by population than 58% of the counties that share it. Natchitoches Parish falls in EPA Radon Region 6, one of 503 counties nationally EPA assigns to that same geologic province.

What this actually means for a house in Natchitoches Parish

Well clear of both the 1.3 pCi/L national indoor average and EPA's 4 pCi/L action level, Natchitoches Parish's Zone 3 prediction is the low end of the scale. A Zone 3 rating means Natchitoches Parish's county-wide average is predicted low, but EPA is explicit that a meaningful share of homes in low-potential zones still test above the action level — a low zone is not a reason to skip testing.

Next steps for a home in Natchitoches Parish

A short-term test kit is the standard first step and typically costs far less than mitigation itself. If a test comes back at or above 4 pCi/L, a radon mitigation system for a typical home runs roughly $800–$2,500 (around $1,200 for a common single-family install), driven mainly by foundation type, not by county.

Find Louisiana's state radon program

For Natchitoches Parish, an ongoing number beats a one-time test - a Airthings radon monitor tracks Natchitoches Parish's levels over time. RadonZoneCheck earns a commission there, at no extra cost to you. Use code RADONZONE-10OFF at checkout for 10% off.

Where Natchitoches Parish's figures come from

Every figure on this page traces to EPA's own Map of Radon Zones and Census data, documented in the methodology guide. Whatever zone Natchitoches Parish carries, the zone explainer covers what it does and doesn't tell you about any one house.