Tippecanoe County, IN radon potential

Tippecanoe County is mapped as Zone 1 - Highest Potential by EPA — meaning the county-wide average indoor level is predicted above 4 pCi/L. Nationally, Tippecanoe County ranks higher in radon potential than 97% of rated counties (the 97th percentile).

Where Tippecanoe County sits nationally

Tippecanoe County, Indiana is home to about 191,650 people across 498.896 square miles. Averaged across its land area, Tippecanoe County runs about 384 people per square mile. Within its own EPA zone, Tippecanoe County is bigger by population than 91% of the counties that share it. Tippecanoe County falls in EPA Radon Region 5, one of 524 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

Tippecanoe County carries a Zone 1 label because its predicted average clears 4 pCi/L outright — three-plus times the 0.4 pCi/L typical outdoors and above the 1.3 pCi/L most homes see. Some Tippecanoe County homes will test comfortably under the action level despite the county's Zone 1 rating — the only way to know which kind of home you have is an actual test.

Testing and mitigation in Tippecanoe County

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 Indiana's state radon program

For Tippecanoe County, an ongoing number beats a one-time test - a Airthings radon monitor tracks Tippecanoe County'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 Tippecanoe County's figures come from

Tippecanoe County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. The guide to what a radon zone actually means covers why testing matters in every zone, not just Zone 1.