Locations and reports
Radon in Fort Wayne, Indiana
EPA puts Allen County, where Fort Wayne is, in Zone 1, its highest radon zone, and high results are common there: 41.8% of the 3,990 radon tests reported to CDC (2008 to 2017, laboratory totals) 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
41.8%
2.9 pts above IN
- Allen
- 41.8%
- Indiana
- 38.9%
Allen, 38th of 69 in IN, 2008 to 2017
Median result
3.3pCi/L
Below action level
- Allen
- 3.3 pCi/L
- EPA
- 4.0 pCi/L
Midpoint of Allen's tests, 2008 to 2017
Nearest county
51.6%
Whitley, 19 miles
- Whitley
- 51.6%
- Allen
- 41.8%
184 tests, 2008 to 2017
EPA radon zone
Zone 1
Highest potential
- Zone 1
- 2
- 3
1 highest, 3 lowest
Allen, where Fort Wayne is
Tests reported
3,990
In Allen
- Allen
- 3,990
- Whitley
- 184
Reported to CDC before any fix, 2008 to 2017
Read a result for Fort Wayne
Starts at Allen County's median, 3.3 pCi/L
EPA’s own thresholds; the figures are the area’s, never this home’s.
EPA’s reading of 3.3 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. Allen County's median reported result, 2008 to 2017.
The data
Fort Wayne, What is published
What is published for Fort Wayne
Every figure for Fort Wayne is a county's
Radon data is published by county, not by city, so for Fort Wayne it is Allen County's: its EPA zone (Zone 1) and the 3,990 tests reported to CDC for 2008 to 2017, laboratory. Only a test tells you about one home.
Fort Wayne covers 111 square miles of land, all of it in Allen County. About 275,203 people live there, 2,485 to the square mile.
Fort Wayne, Counties
The county Fort Wayne lies in
MeasuredAllen County's EPA zone and the figures CDC publishes for it, 2008 to 2017, laboratory.
Allen CountyZone 1Highest predicted potential
- 41.8%
- Reported tests at or above 4 pCi/L
- 3.3 pCi/L
- Median reported result
- 3,990 tests
- Tests reported to CDC
- None
- Yearly figures on file
Allen County ranks 38th of 69 Indiana counties with 30 or more tests for that period, 2.9 points above the 38.9% pooled across Indiana's counties, 6.1 points above the national pool of 35.7%.
The counties nearest Fort Wayne with a CDC figure for 2008 to 2017, laboratory, measured from the middle of the city: Whitley County (19 miles, 51.6% of 184 tests), DeKalb County (23 miles, 56.6% of 242 tests) and Wells County (25 miles, 47.8% of 161 tests). Across the 8 nearest, the share at or above 4 pCi/L runs from 43.8% to 59.3%; the farthest of them, Kosciusko County, is 39 miles away at 50.6%.
No business in the directory gives Fort Wayne as its address; the Indiana list covers it. Indiana's other cities with a page of their own: Indianapolis, Bloomington and Valparaiso.
The counties around Fort Wayne
By distance from the middle of Fort Wayne; counties with 30 or more tests.
Predicted: EPA Map of Radon Zones, by county. Measured: CDC tracking data, by county, 2008 to 2017, laboratory.
Fort Wayne, Geology
The ground under Fort Wayne
PredictedUSGS's geologic map puts all of Fort Wayne's mapped land in one class: high radon potential. All of it lies in the area the map calls Huron-Erie Lobe, 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 |
|---|---|---|---|---|
| Huron-Erie Lobe | Calcareous clayey and loamy glacial deposits derived from marine carbonate and clastic sedimentary rocks. | High | 13 | 100% |
Names, descriptions and indexes: U.S. Geological Survey, Geologic Radon Potential Map (2025). Shares: Radon411, from the map cut to the boundary.
Fort Wayne beside its county and Indiana
All of Fort Wayne, like all of Allen County, is rated high. Fort Wayne has more high-potential ground than Indiana as a whole: 100% of its land against 56.6%.
The map rates the ground, not the air in any home.
Fort Wayne, Homes
Homes in Fort Wayne
Of Fort Wayne's 117,692 homes, 69% are detached houses, against 74% across Allen County; 19% are in buildings of five or more homes. Half of its homes were built before 1971, close to Allen County's 1976: 32% date from before 1960 and 11% from 2000 or later. 62% of occupied homes are lived in by their owner (Allen County: 69%); in the rest a tenant can run a test, but a fix is the landlord's to make.
| Homes | Fort Wayne | Allen County | Indiana |
|---|---|---|---|
| Housing units | 117,692 | 164,456 | 2,953,344 |
| Detached houses | 69% | 74% | 73% |
| In buildings of 5 or more | 19% | 15% | 13% |
| Mobile homes | 2% | 3% | 4% |
| Built before 1960 | 32% | 28% | 32% |
| Built since 2000 | 11% | 20% | 21% |
| Middle year built | 1971 | 1976 | 1976 |
| Owner-occupied | 62% | 69% | 70% |
Census Bureau, American Community Survey, 2019 to 2023: estimates from a sample of homes, looser for a small place. Shares by Radon411.
Local help
Fort Wayne, Local resources
Local resources for Fort Wayne
Who to ask in Indiana: its radon program, test kits and professionals.
- Indiana's radon programIndiana Department of Health, phone 1-800-272-9723.Visit the program’s page(opens in a new tab)
- Free and low-cost kitsThe program says:
To purchase a low-cost radon short term or long term test kit, please visit the American Lung Association
- Compare kits
- Professionals in IndianaRadon testers and mitigators in Indiana, each with how its listing was checked.
The program's own words on licensing are on the Indiana page.
What it means
Fort Wayne, Questions
Questions about radon in Fort Wayne
What radon zone is Fort Wayne in?
EPA's map puts Allen County, and with it Fort Wayne, in Zone 1, the map's highest class: a predicted county average above 4 pCi/L.
What are radon levels in Fort Wayne?
41.8% of the 3,990 tests reported from Allen County for 2008 to 2017 (laboratory totals) were at or above 4 pCi/L, the level at which EPA says to fix a home: high results are ordinary around Fort Wayne. The median reported result was 3.3 pCi/L.
Should I test my home in Fort Wayne?
Yes. About 1,668 of the 3,990 tests reported from Allen County were at or above 4 pCi/L. That is above Indiana's pooled 38.9%, and ranks Allen County 38th of the 69 Indiana counties with 30 or more tests. No map says which homes those are. How to test a home.
What ground is Fort Wayne built on, as far as radon goes?
USGS's geologic map puts all of Fort Wayne on one named area, "Huron-Erie Lobe", rated high for radon potential, radon index 13.
Is radon higher in the counties around Fort Wayne?
Yes, in every direction measured. Each of the 8 nearest counties with a figure reports a larger share of high tests than Allen County's 41.8%; the highest is Wabash County (59.3%, 38 miles off).
The answers use the published figures of Allen County, the county Fort Wayne lies in.
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