Long-term kit
RL116 long-term radon test kit
- Lab fee extra
Method: Alpha track
In home: 90 days to 12 months
Locations and reports
Radon Levels in Waupaca County, Wisconsin
EPA puts Waupaca County in Zone 1, its highest radon zone, and high results are common there: 52.8% of the 127 radon tests reported to CDC (2023) came back at or above 4 pCi/L. Homes with elevated levels occur in all three zones, so only a test measures yours.
Data checked By Radon411Methodology
Share at 4+ pCi/L
52.8%
17.1 pts above WI
- Waupaca
- 52.8%
- Wisconsin
- 35.7%
127 tests, 2023
Median result
4.3pCi/L
Action level reached
- Waupaca
- 4.3 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2023
Tests reported
127
40th of 69 by tests
- Waupaca
- 127
- Dane
- 2,887
Reported to CDC before any fix, 2023
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Rank in Wisconsin
7 of 69
Top quarter
- Waupaca
- 52.8%
- Langlade
- 65.8%
By share, of 69 with 30+ tests
Read a result for Waupaca County
Starts at Waupaca County's median, 4.3 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 4.3 pCi/L
At or above 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is at or above 4 pCi/L. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. Waupaca County's median reported result, 2023.
The data
Waupaca County, At a glance
Waupaca County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Waupaca County in
USGS geologic potential: High across 63% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Waupaca County, 2023
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 52.9% |
| 2015 | 58.0% |
| 2016 | 59.7% |
| 2017 | 61.2% |
| 2019 | 59.1% |
| 2020 | 47.7% |
| 2021 | 57.7% |
| 2022 | 78.5% |
| 2023 | 52.8% |
2023: 52.8%. Across these years the share ran from 47.7% to 78.5%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 127 tests reported to CDC for Waupaca County over 2023, many from homes being sold or already suspected of a problem: they describe the county's reported tests, not this house.
Measured: CDC tracking data. Figure above: 2023. Measured data period: 2005 to 2023 (every CDC figure on file).
Waupaca County, Compared
Waupaca County radon figures, compared
Calculated by Radon411More than half: 52.8% of the 127 radon tests reported to CDC for Waupaca County in 2023 read at least 4 pCi/L. That places it 7th of 69 Wisconsin counties with 30 or more tests for the same period. That is 17.1 points above the 35.7% pooled from 72 Wisconsin counties.
The median result, 4.3 pCi/L, sits above EPA's 4 pCi/L action level, and the top reported result was 88.7 pCi/L. The rest split 23.6% under 2 pCi/L and 23.6% from 2 to 4 (Wisconsin: 41.4% and 23.0%). Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 52.8% share point the same way here.
1 of its 6 bordering counties with figures ran higher, led by Shawano County at 57.0%; Waushara County reported 25.4%. Statewide for the same period, Langlade County reported the highest share (65.8%) and Bayfield County the lowest (5.7%).
The busiest year on file was 2016, with 176 tests reported; the quietest, 2021, had 71.
Over 9 years of annual figures the share held within 2 points, from 52.9% in 2014 to 52.8% in 2023; its peak was 78.5% in 2022. Nationally, every county with a figure for the same period pools to 33.4%; Waupaca County sits 19.4 points above it. CDC also counts 7 tests taken after mitigation in Waupaca County for the same period: tests in homes where a fix was already in.
Waupaca CountyWisconsin, pooled
52.8% % of tests35.7% % of tests
| Year | Tests | Waupaca County, at or above 4 pCi/L | Wisconsin, pooled |
|---|---|---|---|
| 2014 | 119 | 52.9% | 51.1% |
| 2015 | 138 | 58.0% | 51.6% |
| 2016 | 176 | 59.7% | 45.2% |
| 2017 | 134 | 61.2% | 44.8% |
| 2019 | 110 | 59.1% | 42.9% |
| 2020 | 88 | 47.7% | 27.0% |
| 2021 | 71 | 57.7% | 39.9% |
| 2022 | 79 | 78.5% | 42.9% |
| 2023 | 127 | 52.8% | 35.7% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Waupaca County, Geology
The ground under Waupaca County
PredictedUSGS's geologic map splits Waupaca County: 63.4% of its land is high radon potential and 36.6% moderate. The map puts 63.4% of Waupaca County in the area it calls Wolf River Batholith and 36.6% in Green Bay Lobe. USGS gives the first a radon index of 13, in the high band (12 to 17), and the second 10, in the moderate band (9 to 11).
| 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 | 63.4% |
| Green Bay Lobe | Glacial deposits derived from carbonate and igneous rocks. | Moderate | 10 | 36.6% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Waupaca County beside the ground around it
Waupaca County has more high-potential ground than Wisconsin as a whole: 63.4% of its land against 34.8%. Of the 6 counties that border it, 2 have more high-potential ground, Marathon County the most at 84.0%.
The map rates the ground, not the air in any home.
Local help
Waupaca County, Local resources
Radon testing and mitigation in Waupaca County
- Wisconsin's radon programWisconsin Department of Health ServicesWisconsin's radon program does not license radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in Wisconsin.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
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.
- Compare kits
- Professionals in Wisconsin19 professionals are listed in Wisconsin.
What Wisconsin's program says
- Phone
- 1-888-569-7236
- DHSRadon@dhs.wisconsin.gov
- Licensing of radon professionals
The State of Wisconsin does not require contractors performing radon measurement or mitigation work to be state licensed or nationally certified.
What it means
Waupaca County, Questions
Questions about radon in Waupaca County
Are radon levels high in Waupaca County?
In 2023, 52.8% of the radon tests reported to CDC for Waupaca County, Wisconsin were at or above 4 pCi/L, and the median reported pre-mitigation result was 4.3 pCi/L. Of 69 Wisconsin counties with 30 or more tests for the same period, 6 reported a higher share; pooled, the state comes to 35.7%.
Which counties border Waupaca County?
Waupaca County borders 6 counties: Portage County, Waushara County, Outagamie County, Winnebago County, Shawano County and Marathon County.
Products
Waupaca County, Products
Testing a home in Waupaca County
In Waupaca County, 52.8% of 127 tests reported to CDC in 2023 reached 4 pCi/L, against 35.7% pooled across Wisconsin. In Zone 1 the year-round level in Waupaca 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 monitors3
See every kit and monitor
Monitor
RM-63Pro rechargeable radon monitor with a touchscreen
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
Short-term kitKidde
442020 short-term charcoal radon test kit
- Lab fee included
Method: Charcoal
In home: 3 days
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Waupaca County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Waupaca County
Explore
Waupaca County, Bordering counties
Counties bordering Waupaca County
Calculated by Radon411- Radon levels in Shawano CountyEPA zone 1
57.0%at or above 4 pCi/L
Median 5.0 pCi/L · 114 tests · 4.2 points above Waupaca County
- Radon levels in Marathon CountyEPA zone 1
51.9%at or above 4 pCi/L
Median 4.3 pCi/L · 349 tests · 0.9 points below Waupaca County
- Radon levels in Winnebago CountyEPA zone 2
42.4%at or above 4 pCi/L
Median 3.1 pCi/L · 512 tests · 10.4 points below Waupaca County
- Radon levels in Outagamie CountyEPA zone 2
40.7%at or above 4 pCi/L
Median 3.1 pCi/L · 337 tests · 12.1 points below Waupaca County
- Radon levels in Portage CountyEPA zone 1
35.6%at or above 4 pCi/L
Median 3.0 pCi/L · 334 tests · 17.2 points below Waupaca County
- Radon levels in Waushara CountyEPA zone 2
25.4%at or above 4 pCi/L
Median 1.9 pCi/L · 71 tests · 27.4 points below Waupaca County
Waupaca County, Cities and towns
Cities and towns in Waupaca County
About 51,461 people live in Waupaca County by the Census Bureau's estimate for July 1, 2025, 338 fewer than in 2020 (−0.7%). That works out to 69 people per square mile of land. New London, the largest place on its list (7,726 residents in all), extends beyond Waupaca County, so no share of the total is worked out for it. CDC's 127 reported tests for 2023 work out to 2.5 per 1,000 residents (2025 estimate), close to Wisconsin's 3.5.
From New London to Big Falls, CDC publishes no figure by town: each reads Waupaca County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| New Londonextends beyond Waupaca County | 7,726 | +5.0% | Counted whole |
| Waupaca | 6,352 | +0.5% | 12.3% |
| Clintonville | 4,499 | −2.2% | 8.7% |
| Weyauwega | 1,788 | −0.3% | 3.5% |
| Manawa | 1,411 | −2.3% | 2.7% |
| Marionextends beyond Waupaca County | 1,273 | −3.0% | Counted whole |
| Iola | 1,210 | −4.7% | 2.4% |
| Fremont | 674 | −2.2% | 1.3% |
| Scandinavia | 364 | −2.7% | 0.7% |
| Embarrass | 346 | −3.6% | 0.7% |
| Ogdensburg | 178 | −4.3% | 0.3% |
| Big Falls | 61 | −3.2% | 0.1% |
12 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. Residents: U.S. Census Bureau population estimates for July 1, 2025 (Vintage 2025). A place that extends beyond Waupaca County is counted whole, so it has no share.
Waupaca County, Homes
Homes in Waupaca County
Waupaca County is a place of houses on their own lots: 78% of its 25,620 homes are detached single-family houses, against 66% across Wisconsin. Half of its homes were built before 1975, close to Wisconsin's 1975: 35% date from before 1960 and 16% from 2000 or later. 75% 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 | Waupaca County | Wisconsin |
|---|---|---|
| Housing units | 25,620 | 2,750,750 |
| Detached houses | 78% | 66% |
| In buildings of 5 or more | 9% | 17% |
| Mobile homes | 5% | 3% |
| Built before 1960 | 35% | 34% |
| Built since 2000 | 16% | 20% |
| Middle year built | 1975 | 1975 |
| Owner-occupied | 75% | 68% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.