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
Radon Levels in Susquehanna County, Pennsylvania
EPA puts Susquehanna County in Zone 1, its highest radon zone, and 37.9% of its 116 reported radon tests (2020) were 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
37.9%
7.6 pts above PA
- Susquehanna
- 37.9%
- PA
- 30.3%
116 tests, 2020
Median result
3.0pCi/L
Below action level
- Susquehanna
- 3.0 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of the tests, 2020
Tests reported
116
54th of 63 by tests
- Susquehanna
- 116
- Montgomery
- 10,508
Reported to CDC before any fix, 2020
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
EPA predicts over 4 pCi/L indoors
Rank in PA
37 of 63
Middle half
- Susquehanna
- 37.9%
- Perry
- 57.7%
By share, of 63 with 30+ tests
Read a result for Susquehanna County
Starts at Susquehanna County's median, 3.0 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 3.0 pCi/L
Between 2 and 4 pCi/L
- Under 20 to 1.9 pCi/L
- 2 to 4consider a fix
- 4 and aboveEPA says fix it
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Susquehanna County's median reported result, 2020.
The data
Susquehanna County, At a glance
Susquehanna County at a glance
Predicted: EPA radon zone
EPA Zone 1: highest predicted potential
EPA puts all of Susquehanna County in
USGS geologic potential: High across 100% of the county's area
Predicted: EPA Map of Radon Zones
Measured: tests reported to CDC
Radon tests reported for Susquehanna County, 2020
| Year | Share of reported tests at or above 4 pCi/L |
|---|---|
| 2014 | 44.3% |
| 2015 | 44.8% |
| 2016 | 39.2% |
| 2017 | 42.7% |
| 2018 | 29.5% |
| 2019 | 32.0% |
| 2020 | 37.9% |
2020: 37.9%. Across these years the share ran from 29.5% to 44.8%. Each column counts radon tests reported to CDC that year, not homes.
What these figures count
These are the 116 tests reported to CDC for Susquehanna County over 2020, 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: 2020. Measured data period: 2005 to 2020 (every CDC figure on file).
Susquehanna County, Compared
Susquehanna County radon figures, compared
Calculated by Radon411In Susquehanna County, about 4 in 10 reported tests in 2020 (44 of 116) were at or above EPA's action level. Against the national pool of 25.5%, the gap is 12.4 points higher. Across 67 Pennsylvania counties pooled together, 30.3% of tests reached that level, so Susquehanna County runs 7.6 points above its state.
Of 5 neighbours with a figure, 1 reported a larger share at or above 4 pCi/L and 4 a smaller one; the spread is 27.1% (Lackawanna County) to 43.4% (Bradford County). By share, Susquehanna County is 37th of 63 Pennsylvania counties with 30 or more tests for the same period.
Year by year, 2014 opened at 44.3% and 2020 closed at 37.9% (down 6.4 points), with 2015 the high at 44.8%. Half the tests came in under 3.0 pCi/L and half over it; the single highest reached 26.0 pCi/L. Below the action level, 39 tests (33.6%) came in under 2 pCi/L, against 44.3% statewide, and 33 tests (28.4%) fell between 2 and 4, against 25.4% statewide.
Zone 1 on EPA's map (predicted average above 4 pCi/L) and a 37.9% share point the same way here. USGS geology rates 100% of the county's land high radon potential.
The busiest year on file was 2019, with 284 tests reported; the quietest, 2014, had 61.
Susquehanna CountyPennsylvania, pooled
37.9% % of tests30.3% % of tests
| Year | Tests | Susquehanna County, at or above 4 pCi/L | Pennsylvania, pooled |
|---|---|---|---|
| 2014 | 61 | 44.3% | 36.1% |
| 2015 | 134 | 44.8% | 37.8% |
| 2016 | 194 | 39.2% | 34.4% |
| 2017 | 103 | 42.7% | 35.1% |
| 2018 | 129 | 29.5% | 30.5% |
| 2019 | 284 | 32.0% | 31.4% |
| 2020 | 116 | 37.9% | 30.3% |
Pooled shares: Radon411's sum of CDC's county counts for one period.
Susquehanna County, State data
Pennsylvania's own radon test data
MeasuredWhat Pennsylvania's own agencies publish about radon tests in Susquehanna County, with their period. These are not CDC's figures and are never added to them.
MeasuredState figures, not CDC's
What Pennsylvania DEP reports for the ZIP codes in Susquehanna County
Pennsylvania DEP publishes its figures by ZIP code, not by county. These are the 31 ZIP codes that lie wholly or partly in Susquehanna County, each with the state's own figures for it. Period: Period not stated by DEP.
| ZIP code | What the state reports |
|---|---|
| 18407 | Basement: average 3.7 pCi/L, 1,031 tests; First floor: average 2.3 pCi/L, 209 tests |
| 18413 | Basement: average 5.9 pCi/L, 30 tests; First floor: figures not shown |
| 18419 | Basement: average 4.6 pCi/L, 569 tests; First floor: average 1.4 pCi/L, 64 tests |
| 18421 | Basement: average 3.9 pCi/L, 438 tests; First floor: average 1.8 pCi/L, 131 tests |
| 18430 | Basement: figures not shown; First floor: figures not shown |
| 18441 | Basement: figures not shown; First floor: figures not shown |
| 18446 | Basement: average 6.6 pCi/L, 247 tests; First floor: average 3.2 pCi/L, 32 tests |
| 18462 | Basement: average 3.9 pCi/L, 41 tests; First floor: figures not shown |
| 18465 | Basement: average 5.7 pCi/L, 98 tests; First floor: figures not shown |
| 18470 | Basement: average 4.6 pCi/L, 201 tests; First floor: average 1.9 pCi/L, 31 tests |
| 18623 | Basement: average 6.8 pCi/L, 68 tests; First floor: figures not shown |
| 18630 | Basement: average 5.6 pCi/L, 101 tests; First floor: figures not shown |
| 18801 | Basement: average 6.0 pCi/L, 449 tests; First floor: average 2.3 pCi/L, 64 tests |
| 18812 | Basement: average 11.0 pCi/L, 143 tests; First floor: figures not shown |
| 18816 | Basement: figures not shown |
| 18818 | Basement: average 5.3 pCi/L, 81 tests; First floor: figures not shown |
| 18820 | Basement: figures not shown |
| 18821 | Basement: average 7.1 pCi/L, 43 tests; First floor: figures not shown |
| 18822 | Basement: average 6.9 pCi/L, 121 tests; First floor: average 2.0 pCi/L, 60 tests |
| 18823 | Basement: figures not shown; First floor: figures not shown |
| 18824 | Basement: average 7.9 pCi/L, 67 tests; First floor: figures not shown |
| 18825 | Basement: figures not shown; First floor: figures not shown |
| 18826 | Basement: average 6.3 pCi/L, 88 tests; First floor: figures not shown |
| 18828 | Basement: figures not shown; First floor: figures not shown |
| 18829 | Basement: figures not shown; First floor: figures not shown |
| 18830 | Basement: average 13.4 pCi/L, 34 tests; First floor: figures not shown |
| 18834 | Basement: average 9.0 pCi/L, 207 tests; First floor: figures not shown |
| 18842 | Basement: figures not shown; First floor: figures not shown |
| 18843 | Basement: figures not shown; First floor: figures not shown |
| 18844 | Basement: average 4.7 pCi/L, 97 tests; First floor: figures not shown |
| 18847 | Basement: average 5.8 pCi/L, 237 tests; First floor: average 2.6 pCi/L, 44 tests |
- DEP's report gives the number of tests, the highest result and the average result for each floor tested; it states no period.
- DEP says the smartest thing to do is to test your home for radon, no matter where you live.
- A ZIP code that crosses the county line is listed whole; its figures cover all of it.
Measured: Pennsylvania DEP data, Period not stated by DEP.
Susquehanna County, Geology
The ground under Susquehanna County
PredictedUSGS's geologic map puts all of Susquehanna County's mapped land in one class: high radon potential. All of it lies in the area the map calls Glaciated Low Plateau Western Portion, 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 |
|---|---|---|---|---|
| Glaciated Low Plateau Western Portion | Moderately thick glacial till overlying sandstone, siltstone, mudstone, and shale. | High | 13 | 99.7% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Susquehanna County beside the ground around it
Susquehanna County has more high-potential ground than Pennsylvania as a whole: 100% of its land against 70.4%. Of the 6 counties that border it, none has as large a share of high-potential ground; Bradford County comes nearest at 100%.
The map rates the ground, not the air in any home.
Local help
Susquehanna County, Local resources
Radon testing and mitigation in Susquehanna County
- Radon DivisionRadon Division, run by Department of Environmental Protection, licenses or certifies radon professionals and offers free or discounted test kits, and answers questions about testing and mitigation in Pennsylvania.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
Through an EPA-funded program, hospitals give parents of newborn children a packet of information which includes a coupon for a free radon test kit from the DEP.
- Compare kits
- Professionals in Pennsylvania151 professionals are listed in Pennsylvania.
What Pennsylvania's program says
- Phone
- 800-237-2366
- Licensing of radon professionals
The Radon Certification Act requires DEP to establish by regulation, a certification program for persons conducting radon gas and radon progeny testing, laboratory analysis and mitigation of radon contamination in buildings.
What it means
Susquehanna County, Questions
Questions about radon in Susquehanna County
Are radon levels high in Susquehanna County?
In 2020, 37.9% of the radon tests reported to CDC for Susquehanna County, Pennsylvania were at or above 4 pCi/L, and the median reported pre-mitigation result was 3.0 pCi/L. Of 63 Pennsylvania counties with 30 or more tests for the same period, 36 reported a higher share; pooled, the state comes to 30.3%.
Which counties border Susquehanna County?
Susquehanna County borders 6 counties: Broome County, NY, Wyoming County, PA, Lackawanna County, PA, Wayne County, PA, Tioga County, NY and Bradford County, PA.
Products
Susquehanna County, Products
Testing a home in Susquehanna County
In Susquehanna County, 37.9% of 116 tests reported to CDC in 2020 reached 4 pCi/L, against 30.3% pooled across Pennsylvania. In Zone 1 the year-round level in Susquehanna 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
MonitorAEGTEST
HOUND-1085 palm-sized rechargeable radon detector
- C-NRPP 2024/25: Not included
- Battery
- Alarm
- Screen
Method: Semiconductor sensor
First reading: Within 6 hours
Short-term kit
Radon Short Term Test Kit short-term charcoal radon test kit, lab fee included
- Lab fee included
Method: Charcoal
In home: 2 to 7 days
- See every kit and monitor Test kits and monitors
Test kits and monitors: 1 of 3
Susquehanna County is in EPA Zone 1, the highest predicted radon potential. Best radon monitors for Zone 1 counties like Susquehanna County
Explore
Susquehanna County, Bordering counties
Counties bordering Susquehanna County
Calculated by Radon411- Radon levels in Bradford County, PAEPA zone 1
43.4%at or above 4 pCi/L
Median 3.4 pCi/L · 286 tests · 5.5 points above Susquehanna County
- Radon levels in Tioga County, NYEPA zone 1
32.4%at or above 4 pCi/L
Median 2.5 pCi/L · 34 tests · 5.5 points below Susquehanna County
- Radon levels in Wyoming County, PAEPA zone 1
30.9%at or above 4 pCi/L
Median 2.0 pCi/L · 123 tests · 7.0 points below Susquehanna County
- Radon levels in Wayne County, PAEPA zone 2
30.1%at or above 4 pCi/L
Median 2.3 pCi/L · 607 tests · 7.8 points below Susquehanna County
- Radon levels in Lackawanna County, PAEPA zone 1
27.1%at or above 4 pCi/L
Median 2.1 pCi/L · 776 tests · 10.8 points below Susquehanna County
- Radon levels in Broome County, NYEPA zone 1
25.0%at or above 4 pCi/L
Median 2.8 pCi/L · 16 tests · 12.9 points below Susquehanna County
Susquehanna County, Cities and towns
Cities and towns in Susquehanna County
Susquehanna County's population has barely moved since 2020: 38,237 residents on July 1, 2025 against 38,355 then, by the Census Bureau's estimates. That works out to 46 people per square mile of land. No town dominates: Forest City, the largest, has 1,741 residents, 4.6% of the total. Together its 13 incorporated places hold 23.8% of those residents; the other 76.2% live outside any of them. Reported testing is thin here: 116 tests over 2020, or 3.0 for every 1,000 residents (2025 estimate), where Pennsylvania as a whole comes to 7.2.
From Forest City to Friendsville, CDC publishes no figure by town: each reads Susquehanna County's.
| Place | Residents | Since 2020 | Share of residents |
|---|---|---|---|
| Forest City | 1,741 | −1.9% | 4.6% |
| Susquehanna Depot | 1,336 | −1.8% | 3.5% |
| Montrose | 1,275 | −1.3% | 3.3% |
| Hallstead | 1,167 | −0.8% | 3.1% |
| New Milford | 796 | −2.0% | 2.1% |
| Great Bend | 620 | −1.7% | 1.6% |
| Oakland | 549 | −2.1% | 1.4% |
| Lanesboro | 496 | −1.2% | 1.3% |
| Hop Bottom | 314 | +1.6% | 0.8% |
| Thompson | 246 | −1.6% | 0.6% |
| Little Meadows | 243 | −1.2% | 0.6% |
| Union Dale | 221 | +0.9% | 0.6% |
- Friendsville
13 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).
Susquehanna County, Homes
Homes in Susquehanna County
Susquehanna County is a place of houses on their own lots: 79% of its 21,335 homes are detached single-family houses, against 57% across Pennsylvania. Much of Susquehanna County is recent building: 13% of its homes have gone up since 2000 and the middle year built is 1975, against 1965 for Pennsylvania. Owners live in 78% of the occupied homes (Pennsylvania: 69%), so for most households a test and a fix are their own to order.
| Homes | Susquehanna County | Pennsylvania |
|---|---|---|
| Housing units | 21,335 | 5,779,663 |
| Detached houses | 79% | 57% |
| In buildings of 5 or more | 3% | 13% |
| Mobile homes | 12% | 4% |
| Built before 1960 | 35% | 45% |
| Built since 2000 | 13% | 14% |
| Middle year built | 1975 | 1965 |
| Owner-occupied | 78% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.