Is radon high in ZIP 50025?

High. The model's predicted long-term basement average for ZIP 50025 is 6.5 pCi/L (SD 0.07), with above-ground floors at 3.3 pCi/L. That is about 3.0× the average US ZIP code (2.2) and close to the Audubon County average of 5.9. It ranks 1 of 5 ZIPs in the county.

Do I need to test my home in 50025?

Yes, now. A predicted average at or above the EPA action level of 4 pCi/L means most homes in 50025 would qualify for mitigation. Use a short-term charcoal kit or a continuous monitor; if the result is 4 or higher, get bids for a mitigation system (typically $800-$2,500).

What EPA radon zone is ZIP 50025 in?

ZIP 50025 lies mostly in Audubon County, which the EPA classifies as Radon Zone 1 (highest potential (predicted average > 4 pCi/L)). Zones are county-wide and date from 1993; the ZIP-level prediction above is from a 2001-2021 model built on millions of tests.

Radon levels in ZIP 50025

HighEPA Zone 1

ZIP 50025 (Audubon County, Iowa): predicted long-term basement average of 6.5 pCi/L (model estimate), about 3.0× the average US ZIP (2.2) and about 1.9× the Iowa average (3.5). This is the most populous ZIP in Audubon County.

Test ZIP 50025 now - and consider a continuous monitor

The model predicts a long-term basement average of 6.5 pCi/L here, at or above the EPA action level of 4. Homes in the same ZIP still vary widely, so a real test is the only way to know your number. A continuous digital monitor shows how your level swings with weather and season, which matters when you're near the action level.

Get a continuous radon monitor →Or start with a short-term test kit

Already tested at 4 pCi/L or higher? Find a certified mitigation professional (EPA). A mitigation system typically runs $800-$2,500 installed.

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Predicted (model estimate). The pCi/L figures on this page are long-term area averages from a peer-reviewed national model built on millions of real radon tests (2001-2021). They describe the typical home in this area - not your home, which can be several times higher or lower. The EPA radon zone is a separate, 1993 county-level classification. How the numbers work.

6.5 ± 0.07

pCi/L predicted basement mean (model SD)

3.3 ± 0.07

pCi/L predicted upstairs mean

5.7 ± 0.07

pCi/L predicted typical screening test

How 50025 compares

Within Audubon County, ZIP 50025 ranks #1 of 5 ZIPs by predicted basement level; the county average is 5.9 pCi/L and its ZIPs run from 3.8 to 6.5. The county is EPA Radon Zone 1. About 3,325 people lived in this ZIP at the 2010 Census.

A screening test in a typical 50025 home is predicted at 5.7 pCi/L, so first-floor living space - not just the basement - can exceed the action level here. Mitigation systems are routine in this range and typically cost $800-$2,500.

Other ZIP codes in Audubon County

500765.2
515434.8
500425.1
501173.8

ZIP 50025 radon questions

Is radon high in ZIP 50025?: High. The model's predicted long-term basement average for ZIP 50025 is 6.5 pCi/L (SD 0.07), with above-ground floors at 3.3 pCi/L. That is about 3.0× the average US ZIP code (2.2) and close to the Audubon County average of 5.9. It ranks 1 of 5 ZIPs in the county.
Do I need to test my home in 50025?: Yes, now. A predicted average at or above the EPA action level of 4 pCi/L means most homes in 50025 would qualify for mitigation. Use a short-term charcoal kit or a continuous monitor; if the result is 4 or higher, get bids for a mitigation system (typically $800-$2,500).
What EPA radon zone is ZIP 50025 in?: ZIP 50025 lies mostly in Audubon County, which the EPA classifies as Radon Zone 1 (highest potential (predicted average > 4 pCi/L)). Zones are county-wide and date from 1993; the ZIP-level prediction above is from a 2001-2021 model built on millions of tests.

ZIP pages are generated for ZIPs predicted at or above 2.5 pCi/L and for the most populous ZIP in each county; all other ZIPs appear in their county table. Methodology.