
Long-term kit![]()
RL416 long-term radon test kit, lab fee included
- Lab fee included
Method: Alpha track
In home: 90 days to 12 months
Locations and reports
EPA puts Menominee County in Zone 1, its highest radon zone, and only 3 radon tests from it are on file with CDC (2023). Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Highest bordering
65.8%
Langlade County
3 of 3 neighbours have 30+ tests, 2023
Nearest county
57.0%
Shawano County, 15 miles
Share at 4+ pCi/L, 114 tests, 2023
Ground above low
100.0%
1.7 pts above Wisconsin
Share of land USGS rates moderate or high potential
Tests reported
22
Too few for a share
2005 to 2014, laboratory
EPA radon zone
Zone 1
Highest potential
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Read a result for Menominee County
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 4.0 pCi/L
At or above 4 pCi/L
This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher.
The data
Menominee County, At a glance
Predicted: EPA radon zone
EPA puts all of Menominee County in
USGS geologic potential: High across 98% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 66.7% |
| 2015 | 100.0% |
| 2019 | 50.0% |
| 2020 | 0.0% |
| 2021 | 50.0% |
| 2022 | 83.3% |
| 2023 | 100.0% |
2023: 100.0%. Across these years the share ran from 0.0% to 100.0%. Each column counts radon tests reported to CDC that year, not homes.
Only 3 tests were reported to CDC for Menominee County over 2023, and tests are often run on homes being sold or already suspected of a problem: so few describe neither the county nor this house.
Measured: CDC tracking data. Figure above: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).
Menominee County, Compared
CDC's largest figure for Menominee County rests on 22 tests over the 2005 to 2014 laboratory totals, 5 of them at or above 4 pCi/L, so each test moves its share by 4.5 points and no rank or comparison is drawn from it. Results reached as high as 13.1 pCi/L, with a middle value of 2.8 pCi/L.
Of the counties bordering it, 3 have a figure in 2023: Langlade County reported the largest share at or above 4 pCi/L, 65.8%, and Oconto County the smallest, 52.3%, with Shawano County at 57.0% between. Farther out, Waupaca County (39 miles away) at 52.8%, Marinette County (42 miles away) at 44.3% and Outagamie County (42 miles away) at 40.7% have figures too. Pooled across 72 Wisconsin counties, 35.7% of reported tests reached that level; across every county in the country with a figure, 33.4%.
Statewide for the same period, Langlade County reported the highest share (65.8%) and Bayfield County the lowest (5.7%). EPA's 1993 map puts Menominee County in Zone 1, the map's highest label: a predicted county average above 4 pCi/L. USGS geology rates 98% of the county's land high radon potential.
Pooled shares: Radon411's sum of CDC's county counts for one period.
Menominee County, Geology
Most of the ground under Menominee County is one class on USGS's geologic map: 98.0% of its land is high radon potential, with 2.0% moderate. 98.0% of it lies in the area the map calls Wolf River Batholith, to which USGS gives a radon index of 13, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Wolf River Batholith | Plutonic granitic rocks including quartz monzonite, syenite, monzonite, anorthosite. | High | 13 | 98.0% |
| Green Bay Lobe | Glacial deposits derived from carbonate and igneous rocks. | Moderate | 10 | 2.0% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Menominee County has more high-potential ground than Wisconsin as a whole: 98.0% of its land against 34.8%. Of the 3 counties that border it, none has as large a share of high-potential ground; Shawano County comes nearest at 63.3%.
The map rates the ground, not the air in any home.
Local help
Menominee County, Local resources
We recommend starting with your regional Radon Information Center since many centers provide test kits for free or reduced cost, and often with laboratory fees covered.
The State of Wisconsin does not require contractors performing radon measurement or mitigation work to be state licensed or nationally certified.
What it means
Menominee County, Questions
In 2023, 100.0% of the radon tests reported to CDC for Menominee County, Wisconsin were at or above 4 pCi/L, and the median reported pre-mitigation result was 11.0 pCi/L. Of the counties bordering it, 3 have a figure in 2023: Langlade County reported the largest share at or above 4 pCi/L, 65.8%, and Oconto County the smallest, 52.3%, with Shawano County at 57.0% between.
Menominee County borders 3 counties: Shawano County, Oconto County and Langlade County.
Products
Menominee County, Products
No CDC figure names Menominee County; the nearest county with one, Shawano County (15 miles away), reported 57.0% of its tests at or above 4 pCi/L in 2023, the only reading nearby until a test of this home. In Zone 1 the year-round level in Menominee County is the one to know: a long-term test (more than 90 days) or a monitor, with a short-term kit for a first answer.
Test kits and monitors: 1 of 3
Menominee County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Menominee County
Explore
Menominee County, Bordering counties
65.8%at or above 4 pCi/L
Median 6.0 pCi/L · 225 tests
57.0%at or above 4 pCi/L
Median 5.0 pCi/L · 114 tests
52.3%at or above 4 pCi/L
Median 4.5 pCi/L · 130 tests
Menominee County, Residents
About 4,199 people live in Menominee County by the Census Bureau's estimate for July 1, 2025, 59 fewer than in 2020 (−1.4%). That works out to 12 people per square mile of land. Reported testing is thin here: 22 tests over 2005 to 2014, or 5.2 for every 1,000 residents (2025 estimate), where Wisconsin as a whole comes to 9.5.
Census lists no incorporated place in Menominee County: every home in it reads the county's figures.
Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025).
Menominee County, Homes
Menominee County is a place of houses on their own lots: 91% of its 2,148 homes are detached single-family houses, against 66% across Wisconsin. Much of Menominee County is recent building: 20% of its homes have gone up since 2000 and the middle year built is 1986, against 1975 for Wisconsin. 74% of occupied homes are lived in by their owner (Wisconsin: 68%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Menominee County | Wisconsin |
|---|---|---|
| Housing units | 2,148 | 2,750,750 |
| Detached houses | 91% | 66% |
| In buildings of 5 or more | 1% | 17% |
| Mobile homes | 7% | 3% |
| Built before 1960 | 9% | 34% |
| Built since 2000 | 20% | 20% |
| Middle year built | 1986 | 1975 |
| Owner-occupied | 74% | 68% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.