Is Parke County, IN a radon risk area?

Parke County is mapped as Zone 2 - Moderate Potential by EPA — meaning the county-wide average indoor level is predicted between 2 and 4 pCi/L. Nationally that's the 44th percentile for radon potential — Parke County outranks 44% of every county EPA has rated.

Where Parke County sits nationally

About 16,508 people live in Parke County, Indiana, spread over 444.725 square miles. Averaged across its land area, Parke County runs about 37 people per square mile. Rank 683 by population within its EPA zone puts Parke County at the 34th percentile among zone peers. EPA's geology-based Region 5 groups Parke County with 523 other counties nationally sharing its underlying rock and soil profile.

Zone vs. an actual test

Call it a middle case: above the 1.3 pCi/L most US homes average, below the 4 pCi/L line EPA uses to recommend mitigation — that's Parke County's Zone 2 prediction. Middle-of-the-pack doesn't mean risk-free for any one Parke County address — a moderate county average still leaves individual homes to test either side of it.

Testing and mitigation in Parke County

Nothing about Parke County's EPA zone changes the mitigation number: $800–$2,500 nationally (around $1,200 typical), set by the house's foundation rather than the county it sits in — and only relevant once a test actually clears 4 pCi/L.

Find Indiana's state radon program

Parke County's test kit answers today; a Airthings radon monitor keeps answering for Parke County over time. Affiliate link, RadonZoneCheck earns a commission there, at no extra cost to you. RADONZONE-10OFF at checkout knocks 10% off.

More on how this number was built

Parke County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. If you're unsure why a low zone still deserves a test, the zone explainer covers that directly.