Listed for: Mitigation
Verified:Pennsylvania state license
Locations and reports
EPA puts Lackawanna County, where Scranton is, in Zone 1, its highest radon zone, and 27.1% of its 776 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
27.1%
3.2 pts below PA
Lackawanna, 54th of 63 in PA, 2020
Median result
2.1pCi/L
Below action level
Midpoint of Lackawanna's tests, 2020
Nearest county
30.9%
Wyoming, 20 miles
123 tests, 2020
EPA radon zone
Zone 1
Highest potential
1 highest, 3 lowest
Lackawanna, where Scranton is
Tests reported
776
In Lackawanna
Reported to CDC before any fix, 2020
Read a result for Scranton
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 2.1 pCi/L
Between 2 and 4 pCi/L
This result is between 2 and 4 pCi/L. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. Lackawanna County's median reported result, 2020.
The data
Scranton, What is published
Every figure for Scranton is a county's
Radon data is published by county, not by city, so for Scranton it is Lackawanna County's: its EPA zone (Zone 1) and the 776 tests reported to CDC for 2020. Only a test tells you about one home.
Scranton covers 25.3 square miles of land, all of it in Lackawanna County. About 75,514 people live there, 2,984 to the square mile.
Scranton, Counties
Lackawanna County's EPA zone and the figures CDC publishes for it, 2020.
Lackawanna CountyZone 1Highest predicted potential
Lackawanna County ranks 54th of 63 Pennsylvania counties with 30 or more tests for that period, 3.2 points below the 30.3% pooled across Pennsylvania's counties, 1.6 points above the national pool of 25.5%.
The counties nearest Scranton with a CDC figure for 2020, measured from the middle of the city: Wyoming County (20 miles, 30.9% of 123 tests), Luzerne County (23 miles, 28.2% of 991 tests) and Wayne County (25 miles, 30.1% of 607 tests). Across the 8 nearest, the share at or above 4 pCi/L runs from 28.2% to 40.6%; the farthest of them, Sullivan County, is 44 miles away at 29.0%.
The directory lists 1 business with an address in Scranton, 1 for mitigation. Pennsylvania's other cities with a page of their own: Pittsburgh, Allentown, Harrisburg and Malvern.
By distance from the middle of Scranton; counties with 30 or more tests.
Predicted: EPA Map of Radon Zones, by county. Measured: CDC tracking data, by county, 2020.
Scranton, Geology
USGS's geologic map puts all of Scranton's mapped land in one class: high radon potential. All of it lies in the area the map calls Appalachian Mountain Section, to which USGS gives a radon index of 12, in the high band (12 to 17).
| Area | The rock, in USGS's words | Potential | Radon index | Share of land |
|---|---|---|---|---|
| Appalachian Mountain Section | Paleozoic sandstone, shale, and limestone. | High | 12 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Scranton sits on more high-potential ground than Lackawanna County as a whole: 100% of the city against 71.6% of the county. Scranton has more high-potential ground than Pennsylvania as a whole: 100% of its land against 70.4%.
The map rates the ground, not the air in any home.
Scranton, Homes
Fewer than six in ten of Scranton's 35,623 homes are detached houses (49%, against 65% across Lackawanna County); the rest are attached, in shared buildings or mobile. More than half of its homes were built before 1940, where the middle year for Lackawanna County is 1955; 5% have gone up since 2000. 51% of occupied homes are lived in by their owner (Lackawanna County: 65%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Scranton | Lackawanna County | Pennsylvania |
|---|---|---|---|
| Housing units | 35,623 | 100,013 | 5,779,663 |
| Detached houses | 49% | 65% | 57% |
| In buildings of 5 or more | 15% | 8% | 13% |
| Mobile homes | under 1% | 2% | 4% |
| Built before 1960 | 72% | 54% | 45% |
| Built since 2000 | 5% | 10% | 14% |
| Middle year built | 1939 or earlier | 1955 | 1965 |
| Owner-occupied | 51% | 65% | 69% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.
Local help
Scranton, Professionals
Businesses whose listed city is Scranton, from the state registries and listings in the Radon411 directory, with the same business and certification status the directory shows.
Radon professionals listed in Scranton: 1 of 1
1 listing with Scranton as the city. See radon mitigation in Scranton, or all radon professionals in Pennsylvania.
Scranton, Local resources
Who to ask in Pennsylvania: its radon program, test kits and professionals.
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.
The program's own words on licensing are on the Pennsylvania page.
What it means
Scranton, Questions
Scranton has no zone of its own: it shares Lackawanna County's, Zone 1, the map's highest class: a predicted county average above 4 pCi/L.
A high result is no surprise around Scranton: 27.1% of 776 tests reported from Lackawanna County for 2020 reached 4 pCi/L or more. The median reported result was 2.1 pCi/L.
Yes. About 210 of the 776 tests reported from Lackawanna County were at or above 4 pCi/L. That is below Pennsylvania's pooled 30.3%, and still not a reason to skip it, and ranks Lackawanna County 54th of the 63 Pennsylvania counties with 30 or more tests. No map says which homes those are. How to test a home.
USGS's geologic map puts all of Scranton on one named area, "Appalachian Mountain Section", rated high for radon potential, radon index 12.
Yes, in every direction measured. Each of the 8 nearest counties with a figure reports a larger share of high tests than Lackawanna County's 27.1%; the highest is Carbon County (40.6%, 34 miles off).
Radon411's directory has one business with an address in Scranton, listed for mitigation, none for testing. Every entry names the public list it was taken from. Radon professionals in Scranton.
The answers use the published figures of Lackawanna County, the county Scranton lies in.
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