What EPA's radon map says about Dodge County

Dodge County is mapped as Zone 1 - Highest Potential by EPA — meaning the county-wide average indoor level is predicted above 4 pCi/L. Rank it against the rest of the country and Dodge County lands in the 87th percentile for radon potential.

How Dodge County compares

About 37,884 people live in Dodge County, Nebraska, spread over 528.844 square miles. Averaged across its land area, Dodge County runs about 72 people per square mile. Among counties sharing Dodge County's EPA zone, it outranks 63% of them by population. Dodge County falls in EPA Radon Region 7, one of 412 counties nationally EPA assigns to that same geologic province.

Zone vs. an actual test

Dodge 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. Being in Zone 1 raises the odds Dodge 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 Dodge County

Mitigation cost doesn't depend on Dodge County's zone — it depends on the house's foundation. A typical system runs $800–$2,500 (about $1,200 typical), and testing first is what tells you whether that's needed at all.

Find Nebraska's state radon program

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

More on how this number was built

Dodge County's zone, rank and region all trace back to named EPA and Census sources — the methodology guide lists exactly which ones. Whatever zone Dodge County carries, the zone explainer covers what it does and doesn't tell you about any one house.