Clasificaciones 2026

Códigos ZIP con mayor riesgo de radón en Ohio — 2026

Última actualización: 4 de junio de 2026

909 códigos postales clasificados por Radon Zone N.º 1: código postal 43791 (White Cottage, OH) — Zone 1 (High)
Plomo Infracciones Puntuación más baja Más seguros Riesgo de inundación Costo de energía Radón PFAS Confiabilidad Índice EJ Riesgo para compradores CO y gas Gas más seguro Carga de remediación Infracciones sin resolver (por proveedor) Equidad del agua (por proveedor)

Out of 909 ZIP codes with data in Ohio, these are the lowest-ranked areas for radon zone. See also: National ZIP Codes with Highest Radon Risk | All Ohio Rankings

Statistic Value
ZIP codes ranked 909
Lowest value Zone 1 (High)
Median value Zone 1 (High)
State Ohio

100 Lowest-Ranked ZIP Codes

Rank ZIP Code City State Radon Zone Safety Score
1 43791 White Cottage OH Zone 1 (High) 32/100
2 45400 Dayton OH Zone 1 (High) 32/100
3 45401 Dayton OH Zone 1 (High) 32/100
4 45408 Dayton OH Zone 1 (High) 32/100
5 45410 Dayton OH Zone 1 (High) 32/100
6 45412 Dayton OH Zone 1 (High) 32/100
7 45413 Dayton OH Zone 1 (High) 32/100
8 45416 Dayton OH Zone 1 (High) 32/100
9 45418 Dayton OH Zone 1 (High) 32/100
10 45422 Dayton OH Zone 1 (High) 32/100
11 45423 Dayton OH Zone 1 (High) 32/100
12 45427 Dayton OH Zone 1 (High) 32/100
13 45433 Dayton OH Zone 1 (High) 32/100
14 45435 Dayton OH Zone 1 (High) 32/100
15 45437 Dayton OH Zone 1 (High) 32/100
16 45441 Dayton OH Zone 1 (High) 32/100
17 45448 Dayton OH Zone 1 (High) 32/100
18 45454 Dayton OH Zone 1 (High) 32/100
19 45463 Dayton OH Zone 1 (High) 32/100
20 45469 Dayton OH Zone 1 (High) 32/100
21 45470 Dayton OH Zone 1 (High) 32/100
22 45475 Dayton OH Zone 1 (High) 32/100
23 45479 Dayton OH Zone 1 (High) 32/100
24 45481 Dayton OH Zone 1 (High) 32/100
25 45482 Dayton OH Zone 1 (High) 32/100
26 45490 Dayton OH Zone 1 (High) 32/100
27 44445 New Waterford OH Zone 1 (High) 33/100
28 44203 Barberton OH Zone 1 (High) 35/100
29 45414 Dayton OH Zone 1 (High) 39/100
30 45415 Dayton OH Zone 1 (High) 39/100
31 45419 Dayton OH Zone 1 (High) 39/100
32 45420 Dayton OH Zone 1 (High) 39/100
33 45424 Dayton OH Zone 1 (High) 39/100
34 45426 Dayton OH Zone 1 (High) 39/100
35 45431 Dayton OH Zone 1 (High) 39/100
36 45439 Dayton OH Zone 1 (High) 39/100
37 45440 Dayton OH Zone 1 (High) 39/100
38 45449 Dayton OH Zone 1 (High) 39/100
39 45459 Dayton OH Zone 1 (High) 39/100
40 43006 Brinkhaven OH Zone 1 (High) 40/100
41 43007 Broadway OH Zone 1 (High) 40/100
42 43009 Cable OH Zone 1 (High) 40/100
43 43013 Croton OH Zone 1 (High) 40/100
44 43018 Etna OH Zone 1 (High) 40/100
45 43027 Homer OH Zone 1 (High) 40/100
46 43030 Jacksontown OH Zone 1 (High) 40/100
47 43032 Kilbourne OH Zone 1 (High) 40/100
48 43047 Mingo OH Zone 1 (High) 40/100
49 43048 Mount Liberty OH Zone 1 (High) 40/100
50 43067 Raymond OH Zone 1 (High) 40/100
51 43070 Rosewood OH Zone 1 (High) 40/100
52 43073 Summit Station OH Zone 1 (High) 40/100
53 43077 Unionville Center OH Zone 1 (High) 40/100
54 43083 Westville OH Zone 1 (High) 40/100
55 43117 Derby OH Zone 1 (High) 40/100
56 43142 Milledgeville OH Zone 1 (High) 40/100
57 43151 Sedalia OH Zone 1 (High) 40/100
58 43156 Tarlton OH Zone 1 (High) 40/100
59 43317 Chesterville OH Zone 1 (High) 40/100
60 43319 East Liberty OH Zone 1 (High) 40/100
61 43321 Fulton OH Zone 1 (High) 40/100
62 43323 Harpster OH Zone 1 (High) 40/100
63 43325 Iberia OH Zone 1 (High) 40/100
64 43330 Kirby OH Zone 1 (High) 40/100
65 43332 La Rue OH Zone 1 (High) 40/100
66 43335 Martel OH Zone 1 (High) 40/100
67 43336 Middleburg OH Zone 1 (High) 40/100
68 43337 Morral OH Zone 1 (High) 40/100
69 43340 Mount Victory OH Zone 1 (High) 40/100
70 43342 Prospect OH Zone 1 (High) 40/100
71 43346 Roundhead OH Zone 1 (High) 40/100
72 43349 Shauck OH Zone 1 (High) 40/100
73 43350 Sparta OH Zone 1 (High) 40/100
74 43356 Waldo OH Zone 1 (High) 40/100
75 43359 Wharton OH Zone 1 (High) 40/100
76 43360 Zanesfield OH Zone 1 (High) 40/100
77 43407 Burgoon OH Zone 1 (High) 40/100
78 43414 Dunbridge OH Zone 1 (High) 40/100
79 43721 Brownsville OH Zone 1 (High) 40/100
80 43722 Buffalo OH Zone 1 (High) 40/100
81 43727 Chandlersville OH Zone 1 (High) 40/100
82 43735 East Fultonham OH Zone 1 (High) 40/100
83 43736 Fairview OH Zone 1 (High) 40/100
84 43738 Fultonham OH Zone 1 (High) 40/100
85 43740 Gratiot OH Zone 1 (High) 40/100
86 43760 Mount Perry OH Zone 1 (High) 40/100
87 43767 Norwich OH Zone 1 (High) 40/100
88 43768 Old Washington OH Zone 1 (High) 40/100
89 43778 Salesville OH Zone 1 (High) 40/100
90 43802 Adamsville OH Zone 1 (High) 40/100
91 43803 Bakersville OH Zone 1 (High) 40/100
92 43811 Conesville OH Zone 1 (High) 40/100
93 43828 Keene OH Zone 1 (High) 40/100
94 43836 Plainfield OH Zone 1 (High) 40/100
95 43837 Port Washington OH Zone 1 (High) 40/100
96 43840 Stone Creek OH Zone 1 (High) 40/100
97 43842 Trinway OH Zone 1 (High) 40/100
98 43843 Walhonding OH Zone 1 (High) 40/100
99 43903 Amsterdam OH Zone 1 (High) 40/100
100 43908 Bergholz OH Zone 1 (High) 40/100

Methodology

Radon rankings are based on EPA county-level radon zone classifications. Zone 1 (highest risk) has predicted average indoor radon levels above 4 pCi/L — the EPA action level. Zone 2 is moderate (2-4 pCi/L) and Zone 3 is low (below 2 pCi/L). Within Zone 1, ZIP codes are sub-ranked by Home Safety Score to prioritize areas with compounding risk factors.

Data sources: EPA Safe Drinking Water Information System (SDWIS), FEMA National Flood Insurance Program, EPA radon zone maps, EIA electricity rates, and Consumer Confidence Reports. Last updated: 2026-06-04.

Frequently Asked Questions

What is EPA Radon Zone 1?

Zone 1 is the EPA highest-risk classification, meaning the county has predicted average indoor radon levels above 4 pCi/L — the level at which the EPA recommends mitigation. Radon causes about 21,000 lung cancer deaths per year in the U.S.

Should I test for radon?

The EPA recommends testing all homes regardless of radon zone. A DIY test kit costs $15-40. Professional testing costs $150-250. If levels exceed 4 pCi/L, mitigation systems ($800-2,500) can reduce radon by up to 99%.

Explore More Rankings

Cómo se calcula esta clasificación, fuentes de datos y limitaciones: Metodología de clasificaciones →

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Aviso: Las clasificaciones se basan en datos de la EPA, la FEMA y agencias federales. Reflejan patrones históricos e indicadores de riesgo, no necesariamente las condiciones actuales. Para obtener la información más actual, los residentes pueden comunicarse con la compañía local de agua o solicitar un Informe de Confianza del Consumidor (CCR).

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