Is radon high in Florin, California?

Low. Averaging the model's ZIP-code predictions across Florin (weighted by how much of the city each ZIP covers) gives a long-term basement mean of 1.4 pCi/L - about 23% below the US average of 1.8 and close to the California average of 1.5. That is below the EPA's 2 pCi/L "consider fixing" threshold, though individual homes still vary. Florin ranks 170 of 207 California cities on this site.

Which Florin ZIP codes have the highest radon?

Predictions for the 2 modeled ZIP codes in Florin range from 1.3 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 Florin?

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

What does EPA Radon Zone 3 mean for Florin?

Florin sits mainly in Sacramento 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 Florin, California

LowEPA Zone 3

Predicted long-term basement average of 1.4 pCi/L (model estimate) across the 2 modeled ZIP codes in Florin - about 23% below the US average of 1.8, close to the California average of 1.5. Ranked #170 of 207 California cities on this site. Most of the census-designated place lies in Sacramento County.

Test Florin, CA once anyway - radon varies house to house

The predicted basement average here is 1.4 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

We may earn a commission from Amazon at no extra cost to you.

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.

1.4 ± 0.06

pCi/L predicted basement mean (model SD)

0.8 ± 0.07

pCi/L predicted upstairs (above-ground) mean

1.3-1.4

range of ZIP-level basement predictions in the city

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

What this means for Florin

The typical Florin home is predicted below 2 pCi/L, the lowest band. That describes the average house; the ZIP-level predictions inside the city still span 1.3 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 Sacramento and the 2001-2021 model agree here.

Comparable California cities: Anaheim (1.4), Santa Rosa (1.4), Roseville (1.4), El Monte (1.4).

ZIP codes in Florin

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
95828	85%	1.4 ± 0.06	0.9	Low
95823	15%	1.3 ± 0.06	0.8	Low

Testing help in California

California's radon program page is at www.cdph.ca.gov; it lists testing and certified-mitigator guidance. 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.

Florin radon questions

Is radon high in Florin, California?: Low. Averaging the model's ZIP-code predictions across Florin (weighted by how much of the city each ZIP covers) gives a long-term basement mean of 1.4 pCi/L - about 23% below the US average of 1.8 and close to the California average of 1.5. That is below the EPA's 2 pCi/L "consider fixing" threshold, though individual homes still vary. Florin ranks 170 of 207 California cities on this site.
Which Florin ZIP codes have the highest radon?: Predictions for the 2 modeled ZIP codes in Florin range from 1.3 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 Florin?: Yes, once. The EPA recommends testing every home regardless of area. A short-term kit costs little and settles the question for your house; Florin's low predicted average describes the typical home, not yours.
What does EPA Radon Zone 3 mean for Florin?: Florin sits mainly in Sacramento 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.

← All California counties and cities · Sacramento County · How to test · Methodology