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Radon in Alachua County, Florida

Alachua County, Florida, is in EPA radon Zone 2: predicted average indoor radon screening level from 2 to 4 pCi/L (moderate potential). Radon laboratories reported 1,941 building tests here for 2008 to 2017: median 2.9 pCi/L, with 35.2% at or above EPA's 4 pCi/L action level (Florida 23.1%, US 36.5%).

Zone 2
EPA radon zone (1993 county map)
2.9
median lab test, pCi/L (2008-2017)
35.2%
of lab tests at or above 4 pCi/L
1,941
buildings tested by labs, 2008-2017

Radon test results in Alachua County

Radon test results on file for Alachua County, FL, with state and national comparison
Test resultsPeriodTestsTypical result4 pCi/L or more
Radon testing laboratories2008-20171,941median 2.9 pCi/L35.2%
Florida radon program2023624median 2.4 pCi/L21.4%
Florida, all counties (labs)2008-201746,241n/a23.1%
United States (labs)2008-20171,408,802n/a36.5%

Test results describe buildings whose owners chose to test and whose results reached the lab or agency, not a random sample; small counts swing widely. State and US shares are computed from county counts and percents. The laboratory data comes from national radon testing laboratories and supplements EPA's zone map.

Radon in nearby counties

CountyEPA zoneLab tests4 pCi/L or more
Bradford County, FLZone 340%
Union County, FLZone 2266.7%
Gilchrist County, FLZone 380%
Clay County, FLZone 32013%
Marion County, FLZone 269542.9%
Putnam County, FLZone 3781.1%

The six counties with the nearest centers.

What to do about radon in Alachua County

Test the building. EPA recommends fixing a home at 4 pCi/L or more and considering a fix between 2 and 4 pCi/L, and says there is no known safe level of exposure. Florida's state radon program can point you to testers and test kits.

Buying here? The Environmental Records Report lists this county's radon zone and test results with the flood zone, mapped faults, power lines and federal contamination records near the address.

Check one Alachua County address

Environmental Records Report, $29. PDF and JSON, usually ready in about a minute.

Radon in Alachua County: questions

What is the radon level in Alachua County?

The median of the 1,941 laboratory tests reported for Alachua County (2008 to 2017) was 2.9 pCi/L, and 35.2% of them were at or above 4 pCi/L. These are results of tested buildings; a single home can be far above or below them.

Is Alachua County in radon Zone 1?

No. EPA's 1993 map puts Alachua County in Zone 2 (predicted average indoor radon screening level from 2 to 4 pCi/L (moderate potential)). EPA says homes in every zone can have high radon and should be tested.

How does radon in Alachua County compare with Florida?

35.2% of laboratory tests in Alachua County were at or above 4 pCi/L for 2008 to 2017, against 23.1% across Florida (46,241 tests) and 36.5% nationally. 0 of Florida's 67 counties are in Zone 1.

Should I test for radon in Alachua County?

Yes. EPA recommends testing every home whatever its zone: "This map should not be used to determine if individual homes need to be tested." Fix the home at 4 pCi/L or more and consider a fix between 2 and 4 pCi/L; EPA says there is no known safe level of radon exposure.

More for Alachua County

Other free hazard lookups

All of these, plus wetlands, FEMA hazard ratings and the federal contamination lists, are in the Environmental Records Report for any US address ($29).

Radon in every Florida county · Radon map of every state

Data compiled 2026-10-20. County FIPS 12001. County-level screening information, not a radon measurement of any building.