Cayuga County, NY radon potential

Cayuga County is mapped as Zone 1 - Highest Potential by EPA — meaning the county-wide average indoor level is predicted above 4 pCi/L. Cayuga County sits at the 92nd percentile nationally for radon potential — above 92 of every 100 rated counties.

Where Cayuga County sits nationally

Cayuga County, New York is home to about 74,567 people across 691.589 square miles. That works out to roughly 108 people per square mile. Within its own EPA zone, Cayuga County is bigger by population than 78% of the counties that share it. Cayuga County falls in EPA Radon Region 2, one of 83 counties nationally EPA assigns to that same geologic province.

Why the zone isn't the answer by itself

Outdoor air nationally averages about 0.4 pCi/L, indoor air about 1.3 pCi/L — Cayuga County's Zone 1 prediction clears both of those and EPA's fix-it threshold besides. Being in Zone 1 raises the odds Cayuga County homes test above the action level, but it does not mean any specific house does — EPA recommends every home be tested, in every zone, because the only way to know is to test.

Testing and mitigation in Cayuga 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 New York's state radon program

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

Where Cayuga County's figures come from

The methodology guide shows exactly which EPA and Census sources feed Cayuga County's numbers. Whatever zone Cayuga County carries, the zone explainer covers what it does and doesn't tell you about any one house.