Radon levels in Omaha, Nebraska
ModerateEPA Zone 1Predicted long-term basement average of 3.1 pCi/L (model estimate) across the 27 modeled ZIP codes in Omaha - about 1.7× the US average of 1.8, close to the Nebraska average of 3.6. Ranked #3 of 4 Nebraska cities on this site. Most of the city lies in Douglas County.
Test Omaha, NE - the EPA says "consider fixing" in this range
The predicted basement average here is 3.1 pCi/L, in the 2-4 pCi/L band where the EPA recommends considering mitigation. Plenty of individual homes in a moderate area test above 4. Start with a short-term test; if it comes back at 2 or higher, follow up with a long-term test or a continuous monitor.
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.
3.1 ± 0.07
pCi/L predicted basement mean (model SD)
2.0 ± 0.07
pCi/L predicted upstairs (above-ground) mean
2.5-4.0
range of ZIP-level basement predictions in the city
0%
of Omaha ZIPs predicted ≥ 4 pCi/L (100% ≥ 2)
What this means for Omaha
The typical Omaha home is predicted in the 2-4 pCi/L band. The EPA's guidance for this range is to consider fixing, because there is no known safe level and a meaningful minority of homes in a moderate area will test above 4.
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 city's land in each ZIP (Census 2020 ZCTA-to-place relationship file). Note that the EPA classifies Douglas County as Zone 1 while the newer model predicts 3.1 pCi/L for Omaha; where they disagree, we grade on the model but show both.
Comparable Nebraska cities: Bellevue (3.3), Lincoln (3.5), Grand Island (2.5), Cheyenne (2.4).
ZIP codes in Omaha
ZIPs that overlap the city, 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 |
|---|---|---|---|---|
| 68110 | 6% | 2.9 ± 0.06 | 1.8 | Moderate |
| 68137 | 6% | 3.3 ± 0.06 | 2.1 | Moderate |
| 68134 | 6% | 3.5 ± 0.08 | 2.3 | Moderate |
| 68164 | 5% | 2.7 ± 0.08 | 2.0 | Moderate |
| 68144 | 5% | 3.1 ± 0.06 | 2.1 | Moderate |
| 68104 | 5% | 3.1 ± 0.06 | 2.0 | Moderate |
| 68107 | 5% | 3.3 ± 0.10 | 1.8 | Moderate |
| 68022 | 5% | 2.6 ± 0.06 | 1.9 | Moderate |
| 68154 | 5% | 2.9 ± 0.07 | 1.9 | Moderate |
| 68114 | 4% | 3.6 ± 0.06 | 2.3 | Moderate |
| 68124 | 4% | 4.0 ± 0.06 | 2.5 | Moderate |
| 68130 | 4% | 2.7 ± 0.05 | 2.0 | Moderate |
| 68111 | 4% | 2.9 ± 0.06 | 1.8 | Moderate |
| 68106 | 4% | 3.5 ± 0.06 | 2.1 | Moderate |
| 68112 | 4% | 2.5 ± 0.18 | 2.0 | Moderate |
| 68135 | 4% | 2.6 ± 0.07 | 1.8 | Moderate |
| 68117 | 4% | 3.0 ± 0.06 | 2.0 | Moderate |
| 68127 | 3% | 3.4 ± 0.06 | 2.1 | Moderate |
| 68116 | 3% | 2.6 ± 0.06 | 1.8 | Moderate |
| 68152 | 3% | 3.5 ± 0.06 | 2.3 | Moderate |
| 68105 | 3% | 3.3 ± 0.05 | 1.9 | Moderate |
| 68122 | 2% | 2.8 ± 0.06 | 1.9 | Moderate |
| 68108 | 2% | 3.0 ± 0.06 | 1.9 | Moderate |
| 68118 | 2% | 2.7 ± 0.07 | 2.1 | Moderate |
| 68132 | 2% | 3.4 ± 0.05 | 2.1 | Moderate |
| 68131 | 2% | 3.0 ± 0.05 | 1.8 | Moderate |
| 68102 | 1% | 2.5 ± 0.07 | 1.7 | Moderate |
| 68178 | <1% | — | — | no model |
| 68182 | <1% | — | — | no model |
| 68183 | <1% | — | — | no model |
Testing help in Nebraska
Nebraska's radon program page is at dhhs.ne.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.
Omaha radon questions
- Is radon high in Omaha, Nebraska?
- Moderate. Averaging the model's ZIP-code predictions across Omaha (weighted by how much of the city each ZIP covers) gives a long-term basement mean of 3.1 pCi/L - about 1.7× the US average of 1.8 and close to the Nebraska average of 3.6. That is in the 2-4 pCi/L range where the EPA says to consider fixing. Omaha ranks 3 of 4 Nebraska cities on this site.
- Which Omaha ZIP codes have the highest radon?
- Predictions for the 27 modeled ZIP codes in Omaha range from 2.5 to 4.0 pCi/L in the basement. 0% of them are predicted at or above 4 pCi/L and 100% at or above 2. That spread is why the ZIP table below matters more than the city-wide number.
- Should I test for radon in Omaha?
- Yes, soon. With a predicted basement average of 3.1 pCi/L, a meaningful share of Omaha homes will test above the 4 pCi/L action level. Start with a short-term kit; if it reads 2 or higher, confirm with a long-term test or a continuous monitor before paying for mitigation.
- What does EPA Radon Zone 1 mean for Omaha?
- Omaha sits mainly in Douglas County, which the EPA classifies as Zone 1 - highest potential (predicted average > 4 pCi/L). The zone map dates from 1993 and covers whole counties. The newer model's city average of 3.1 pCi/L does not line up with Zone 1, which is common - the EPA itself says high-radon homes exist in every zone. Neither replaces a test of your own home.
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