Nebraska Radon Map, Levels & Testing Guide
Browse the 10 listed county pages surfaced for Nebraska. Open a listed county to compare its EPA zone, source caveats, testing meaning, and when mitigation pricing becomes worth checking.
High Risk
Moderate
Low Risk
Official Evidence in Nebraska
10 of 10 listed counties have official evidence
Open a county page to see the processed verdict: source confidence, local burden, state percentile, and the next step for no reading, 2.0-3.9, or 4.0+ pCi/L.
100%
covered
Measured
10
State source
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CDC source
10
Needs source detail
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Measured Risk Leaders in Nebraska
County rankings from actual reported radon tests
These lists rank the visible Nebraska county pages by measured radon signals, not by the EPA zone label alone. Use them to spot where the state hub has a real data story before opening individual county pages.
10
measured counties
State-level verdict
This hub has measured high-burden counties, so the first click should be evidence-led.
The state hub is now doing a decision job: it separates first-click counties, retest counties, and lower-signal counties from 10 visible county measurement rows. 10 counties cross the high measured-burden band, so those pages should answer testing and 4.0+ action questions most directly.
First-click counties
Open Saunders County first when you need the strongest local answer. It is tagged Test-now from 72.7% 4.0+ - 8.6 pCi/L primary - 423 tests. 10 visible measured counties are elevated or high enough to review before lower-signal counties.
Buyer/seller lane
Buyer/seller lane: start with the elevated or high counties, require a fresh lowest-level test, and turn any 4.0+ property result into quote or credit math. The hub has 10 CDC-backed county rows to support that routing.
Retest lane
Retest lane: 2.0-3.9 pCi/L deserves more caution in the elevated/high county set than in lower-signal counties. The hub should send those users to county pages before product or cost paths.
Best county pages to open first
Start with these local evidence pages
Ranked by measured burden, 4.0+ share, test volume, and whether the EPA zone understates the measurement signal.
Saunders County
CDC Tracking
72.7% 4.0+ - 8.6 pCi/L primary - 423 tests
Saunders County is a first-click page: 72.7% of reported tests at or above 4.0 and 8.6 pCi/L primary result. Route no-reading users to a test now and 4.0+ users to quote or credit planning.
Gage County
CDC Tracking
69.7% 4.0+ - 8.6 pCi/L primary - 423 tests
Gage County is a first-click page: 69.7% of reported tests at or above 4.0 and 8.6 pCi/L primary result. Route no-reading users to a test now and 4.0+ users to quote or credit planning.
Cass County
CDC Tracking
66.0% 4.0+ - 8.2 pCi/L primary - 442 tests
Cass County is a first-click page: 66.0% of reported tests at or above 4.0 and 8.2 pCi/L primary result. Route no-reading users to a test now and 4.0+ users to quote or credit planning.
Madison County
CDC Tracking
66.4% 4.0+ - 7.8 pCi/L primary - 790 tests
Madison County is a first-click page: 66.4% of reported tests at or above 4.0 and 7.8 pCi/L primary result. Route no-reading users to a test now and 4.0+ users to quote or credit planning.
Highest 4.0+ share
Primary result 8.6 pCi/L - high-end 67.9 pCi/L
CDC Tracking
Primary result 8.6 pCi/L - high-end 45.9 pCi/L
CDC Tracking
Primary result 6.6 pCi/L - high-end 52.0 pCi/L
CDC Tracking
Primary result 7.8 pCi/L - high-end 56.9 pCi/L
CDC Tracking
Primary result 6.7 pCi/L - high-end 54.1 pCi/L
CDC Tracking
Highest high-end reading
4.0+ share 51.1% - primary result 5.2 pCi/L
CDC Tracking
4.0+ share 53.6% - primary result 5.6 pCi/L
CDC Tracking
4.0+ share 72.7% - primary result 8.6 pCi/L
CDC Tracking
4.0+ share 58.1% - primary result 6.1 pCi/L
CDC Tracking
4.0+ share 66.0% - primary result 8.2 pCi/L
CDC Tracking
Most reported tests
4.0+ share 51.1% - primary result 5.2 pCi/L
CDC Tracking
4.0+ share 58.1% - primary result 6.1 pCi/L
CDC Tracking
4.0+ share 53.6% - primary result 5.6 pCi/L
CDC Tracking
4.0+ share 66.4% - primary result 7.8 pCi/L
CDC Tracking
4.0+ share 69.3% - primary result 6.6 pCi/L
CDC Tracking
Measured pattern
Among 10 visible counties with measurement tables, 10 land in the high measured-burden band and 10 land in high or elevated measured-burden bands. That lets this hub rank counties by observed test distribution instead of repeating the EPA map.
Map vs measurements
The strongest measured signals mostly align with the EPA zone structure, so the county pages can use the map as support while still leading with test data.
Source confidence
The measured rows shown here use CDC Tracking. This is still official evidence, but the hub should keep source caveats visible until a stable state table is available.
Already Tested
View Nebraska Cost Estimates
If you already have a radon result, skip the directory and move straight to local price guidance.
Understand the Number
2.0 vs 4.0 vs 8.0 pCi/L
Use the parent levels guide if you need the plain-English meaning of a radon result before browsing counties.
Need a Number First
Read the Testing Guide
Use the fastest valid radon test setup before you compare quotes or ask whether mitigation is worth it.
Browse Counties
Jump to the Directory
Open your county to see its EPA zone, testing meaning, and the point where mitigation becomes worth pricing.
Official State Resource
Nebraska radon program and rules
Use the state program link to verify local radon guidance, disclosure language, and contractor credential expectations before you act on an estimate.
Disclosure rule tracked
Nebraska requires sellers to disclose known defects through the Seller Property Condition Disclosure Statement.
State licensing required
Nebraska requires radon professionals to be certified by the NDHHS.
Already tested? Get your itemized mitigation cost estimate.
View Nebraska Mitigation Cost Estimates ->