Is radon high in Alafaya, Florida?

Low. Averaging the model's ZIP-code predictions across Alafaya (weighted by how much of the city each ZIP covers) gives a long-term basement mean of 1.3 pCi/L - about 31% below the US average of 1.8 and close to the Florida average of 1.3. That is below the EPA's 2 pCi/L "consider fixing" threshold, though individual homes still vary. Alafaya ranks 44 of 89 Florida cities on this site.

Which Alafaya ZIP codes have the highest radon?

Predictions for the 3 modeled ZIP codes in Alafaya range from 1.2 to 1.4 pCi/L in the basement. 0% of them are predicted at or above 4 pCi/L and 0% at or above 2. The city is fairly uniform, so the city-wide number is a reasonable guide for any neighborhood.

Should I test for radon in Alafaya?

Yes, once. The EPA recommends testing every home regardless of area. A short-term kit costs little and settles the question for your house; Alafaya's low predicted average describes the typical home, not yours.

What does EPA Radon Zone 3 mean for Alafaya?

Alafaya sits mainly in Orange County, which the EPA classifies as Zone 3 - low potential (< 2 pCi/L). The zone map dates from 1993 and covers whole counties. The 2001-2021 model agrees with the zone for the city. Neither replaces a test of your own home.

Radon levels in Alafaya, Florida

LowEPA Zone 3

Predicted long-term basement average of 1.3 pCi/L (model estimate) across the 3 modeled ZIP codes in Alafaya - about 31% below the US average of 1.8, close to the Florida average of 1.3. Ranked #44 of 89 Florida cities on this site. Most of the census-designated place lies in Orange County.

Test Alafaya, FL once anyway - radon varies house to house

The predicted basement average here is 1.3 pCi/L, below the EPA's 2 pCi/L "consider fixing" threshold. That's good news for the area - but the EPA still recommends every home be tested, because foundation cracks, soil pockets and ventilation make one house very different from its neighbor. One inexpensive kit settles it.

Get a short-term test kit →Or track it with a continuous monitor

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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.

1.3 ± 0.07

pCi/L predicted basement mean (model SD)

0.7 ± 0.09

pCi/L predicted upstairs (above-ground) mean

1.2-1.4

range of ZIP-level basement predictions in the city

of Alafaya ZIPs predicted ≥ 4 pCi/L (0% ≥ 2)

What this means for Alafaya

The typical Alafaya home is predicted below 2 pCi/L, the lowest band. That describes the average house; the ZIP-level predictions inside the city still span 1.2 to 1.4 pCi/L.

The city figure is not a separate estimate: it is the mean of the model's ZIP-code predictions, weighted by the share of the census-designated place's land in each ZIP (Census 2020 ZCTA-to-place relationship file). The 1993 EPA zone (3) for Orange and the 2001-2021 model agree here.

Comparable Florida cities: Brandon (1.3), Kendall (1.3), Kendale Lakes (1.3), Tamiami (1.3).

ZIP codes in Alafaya

ZIPs that overlap the census-designated place, largest share of its land first. Predicted basement and upstairs means are model estimates; ZIPs the model does not cover show a dash.

ZIP	Share of city	Basement	Upstairs	Grade
32828	68%	1.2 ± 0.07	0.7	Low
32825	25%	1.3 ± 0.07	0.7	Low
32829	7%	1.4 ± 0.07	0.7	Low

Testing help in Florida

Florida's radon program page is at www.floridahealth.gov and, when we checked it, offered a free radon test kit on request. EPA state radon contacts page. If a test comes back at 4 pCi/L or higher, mitigation typically costs $800-$2,500 installed; use EPA find-a-professional and read the mitigation guide.

Alafaya radon questions

Is radon high in Alafaya, Florida?: Low. Averaging the model's ZIP-code predictions across Alafaya (weighted by how much of the city each ZIP covers) gives a long-term basement mean of 1.3 pCi/L - about 31% below the US average of 1.8 and close to the Florida average of 1.3. That is below the EPA's 2 pCi/L "consider fixing" threshold, though individual homes still vary. Alafaya ranks 44 of 89 Florida cities on this site.
Which Alafaya ZIP codes have the highest radon?: Predictions for the 3 modeled ZIP codes in Alafaya range from 1.2 to 1.4 pCi/L in the basement. 0% of them are predicted at or above 4 pCi/L and 0% at or above 2. The city is fairly uniform, so the city-wide number is a reasonable guide for any neighborhood.
Should I test for radon in Alafaya?: Yes, once. The EPA recommends testing every home regardless of area. A short-term kit costs little and settles the question for your house; Alafaya's low predicted average describes the typical home, not yours.
What does EPA Radon Zone 3 mean for Alafaya?: Alafaya sits mainly in Orange County, which the EPA classifies as Zone 3 - low potential (< 2 pCi/L). The zone map dates from 1993 and covers whole counties. The 2001-2021 model agrees with the zone for the city. Neither replaces a test of your own home.

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