West Virginia Radon Map, Levels & Testing Guide
Browse the 55 listed county pages surfaced for West Virginia. Open a listed county to compare its EPA zone, source caveats, testing meaning, and when mitigation pricing becomes worth checking.
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Official Evidence in West Virginia
55 of 55 listed counties have official evidence
Open a county page to see the official source context: measurement fields, local burden, state percentile, and the next step for no reading, 2.0-3.9, or 4.0+ pCi/L.
100%
covered
Measured
55
State source
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CDC source
55
Needs source detail
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Measured Risk Leaders in West Virginia
County rankings from actual reported radon tests
These lists rank the visible West Virginia 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.
55
measured counties
State-level evidence read
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 55 visible county measurement rows. 15 counties cross the high measured-burden band, so those pages should answer testing and 4.0+ action questions most directly.
First-click counties
Open Morgan County first when you need the strongest local answer. It is tagged Test-now from 58.1% 4.0+ - 13.4 pCi/L primary - 190 tests. 32 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 55 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.
Morgan County
CDC Tracking
58.1% 4.0+ - 13.4 pCi/L primary - 190 tests
Morgan County is a first-click page: 58.1% of reported tests at or above 4.0 and 13.4 pCi/L primary result. Route no-reading users to a test now and 4.0+ users to quote or credit planning.
Greenbrier County
CDC Tracking
52.3% 4.0+ - 11.2 pCi/L primary - 119 tests
Greenbrier County is a first-click page: 52.3% of reported tests at or above 4.0 and 11.2 pCi/L primary result. Route no-reading users to a test now and 4.0+ users to quote or credit planning.
Jefferson County
CDC Tracking
53.2% 4.0+ - 8.1 pCi/L primary - 736 tests
Jefferson County is a first-click page: 53.2% of reported tests at or above 4.0 and 8.1 pCi/L primary result. Route no-reading users to a test now and 4.0+ users to quote or credit planning.
Berkeley County
CDC Tracking
50.7% 4.0+ - 8.1 pCi/L primary - 2,010 tests
Berkeley County is a first-click page: 50.7% of reported tests at or above 4.0 and 8.1 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 13.4 pCi/L - high-end 125.6 pCi/L
CDC Tracking
Primary result 8.1 pCi/L - high-end 181.0 pCi/L
CDC Tracking
Primary result 11.2 pCi/L - high-end 129.7 pCi/L
CDC Tracking
Primary result 8.1 pCi/L - high-end 292.8 pCi/L
CDC Tracking
Primary result 5.0 pCi/L - high-end 15.4 pCi/L
CDC Tracking
Highest high-end reading
4.0+ share 50.7% - primary result 8.1 pCi/L
CDC Tracking
4.0+ share 53.2% - primary result 8.1 pCi/L
CDC Tracking
4.0+ share 52.3% - primary result 11.2 pCi/L
CDC Tracking
4.0+ share 58.1% - primary result 13.4 pCi/L
CDC Tracking
4.0+ share 36.9% - primary result 6.4 pCi/L
CDC Tracking
Most reported tests
4.0+ share 50.7% - primary result 8.1 pCi/L
CDC Tracking
4.0+ share 19.0% - primary result 2.8 pCi/L
CDC Tracking
4.0+ share 40.3% - primary result 5.4 pCi/L
CDC Tracking
4.0+ share 53.2% - primary result 8.1 pCi/L
CDC Tracking
4.0+ share 15.9% - primary result 2.4 pCi/L
CDC Tracking
Measured pattern
Among 55 visible counties with measurement tables, 15 land in the high measured-burden band and 32 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
17 elevated measured counties are not EPA Zone 1. Those are the pages where the actual test distribution matters more than a map-only answer.
Source strategy
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 West Virginia 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
West Virginia 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 note
West Virginia does not have specific radon disclosure requirements. General caveat emptor laws apply.
Credential note
West Virginia does not require state licensing for radon professionals.
Already tested? Get your itemized mitigation cost estimate.
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