EPA Radon Zone 1 ZIP Codes in Alabama - 2026

Out of 151 ZIP codes with data in Alabama, these are mapped to counties in EPA Radon Zone 1. See also: National ZIP Codes in EPA Radon Zone 1 | All Alabama Rankings

Statistic	Value
ZIP codes ranked	151
Lowest value	Zone 1 (highest potential)
Median value	Zone 1 (highest potential)
State	Alabama

ZIP Codes in EPA Radon Zone 1

Rank	ZIP Code	City	State	Radon Zone	Safety Score
1	35773	Toney	AL	Zone 1 (highest potential)	33/100
2	35741	Brownsboro	AL	Zone 1 (highest potential)	39/100
3	35749	Harvest	AL	Zone 1 (highest potential)	39/100
4	35757	Madison	AL	Zone 1 (highest potential)	39/100
5	35750	Hazel Green	AL	Zone 1 (highest potential)	40/100
6	35759	Meridianville	AL	Zone 1 (highest potential)	40/100
7	35761	New Market	AL	Zone 1 (highest potential)	40/100
8	35763	Owens Cross Roads	AL	Zone 1 (highest potential)	40/100
9	35806	Huntsville	AL	Zone 1 (highest potential)	40/100
10	35810	Huntsville	AL	Zone 1 (highest potential)	40/100
11	35811	Huntsville	AL	Zone 1 (highest potential)	40/100
12	35650	Moulton	AL	Zone 1 (highest potential)	44/100
13	35758	Madison	AL	Zone 1 (highest potential)	45/100
14	35824	Huntsville	AL	Zone 1 (highest potential)	46/100
15	35760	New Hope	AL	Zone 1 (highest potential)	48/100
16	35801	Huntsville	AL	Zone 1 (highest potential)	50/100
17	35802	Huntsville	AL	Zone 1 (highest potential)	50/100
18	35803	Huntsville	AL	Zone 1 (highest potential)	50/100
19	35805	Huntsville	AL	Zone 1 (highest potential)	50/100
20	35816	Huntsville	AL	Zone 1 (highest potential)	50/100
21	35896	Huntsville	AL	Zone 1 (highest potential)	50/100
22	35622	Falkville	AL	Zone 1 (highest potential)	59/100
23	35640	Hartselle	AL	Zone 1 (highest potential)	59/100
24	35643	Hillsboro	AL	Zone 1 (highest potential)	60/100
25	35601	Decatur	AL	Zone 1 (highest potential)	61/100
26	35603	Decatur	AL	Zone 1 (highest potential)	61/100
27	35619	Danville	AL	Zone 1 (highest potential)	61/100
28	35673	Trinity	AL	Zone 1 (highest potential)	61/100
29	35754	Laceys Spring	AL	Zone 1 (highest potential)	61/100
30	35670	Somerville	AL	Zone 1 (highest potential)	64/100
31	35775	Valhermoso Springs	AL	Zone 1 (highest potential)	64/100
32	35618	Courtland	AL	Zone 1 (highest potential)	65/100
33	36251	Ashland	AL	Zone 1 (highest potential)	67/100
34	35014	Alpine	AL	Zone 1 (highest potential)	—
35	35032	Bon Air	AL	Zone 1 (highest potential)	—
36	35044	Childersburg	AL	Zone 1 (highest potential)	—
37	35072	Goodwater	AL	Zone 1 (highest potential)	—
38	35096	Lincoln	AL	Zone 1 (highest potential)	—
39	35136	Rockford	AL	Zone 1 (highest potential)	—
40	35150	Sylacauga	AL	Zone 1 (highest potential)	—
41	35151	Sylacauga	AL	Zone 1 (highest potential)	—
42	35160	Talladega	AL	Zone 1 (highest potential)	—
43	35183	Weogufka	AL	Zone 1 (highest potential)	—
44	35571	Hodges	AL	Zone 1 (highest potential)	—
45	35581	Phil Campbell	AL	Zone 1 (highest potential)	—
46	35582	Red Bay	AL	Zone 1 (highest potential)	—
47	35585	Spruce Pine	AL	Zone 1 (highest potential)	—
48	35593	Vina	AL	Zone 1 (highest potential)	—
49	35610	Anderson	AL	Zone 1 (highest potential)	—
50	35611	Athens	AL	Zone 1 (highest potential)	—
51	35613	Athens	AL	Zone 1 (highest potential)	—
52	35614	Athens	AL	Zone 1 (highest potential)	—
53	35616	Cherokee	AL	Zone 1 (highest potential)	—
54	35620	Elkmont	AL	Zone 1 (highest potential)	—
55	35630	Florence	AL	Zone 1 (highest potential)	—
56	35632	Florence	AL	Zone 1 (highest potential)	—
57	35633	Florence	AL	Zone 1 (highest potential)	—
58	35634	Florence	AL	Zone 1 (highest potential)	—
59	35645	Killen	AL	Zone 1 (highest potential)	—
60	35646	Leighton	AL	Zone 1 (highest potential)	—
61	35647	Lester	AL	Zone 1 (highest potential)	—
62	35648	Lexington	AL	Zone 1 (highest potential)	—
63	35649	Mooresville	AL	Zone 1 (highest potential)	—
64	35651	Mount Hope	AL	Zone 1 (highest potential)	—
65	35652	Rogersville	AL	Zone 1 (highest potential)	—
66	35653	Russellville	AL	Zone 1 (highest potential)	—
67	35654	Russellville	AL	Zone 1 (highest potential)	—
68	35660	Sheffield	AL	Zone 1 (highest potential)	—
69	35661	Muscle Shoals	AL	Zone 1 (highest potential)	—
70	35671	Tanner	AL	Zone 1 (highest potential)	—
71	35672	Town Creek	AL	Zone 1 (highest potential)	—
72	35674	Tuscumbia	AL	Zone 1 (highest potential)	—
73	35677	Waterloo	AL	Zone 1 (highest potential)	—
74	35739	Ardmore	AL	Zone 1 (highest potential)	—
75	35740	Bridgeport	AL	Zone 1 (highest potential)	—
76	35744	Dutton	AL	Zone 1 (highest potential)	—
77	35745	Estillfork	AL	Zone 1 (highest potential)	—
78	35746	Fackler	AL	Zone 1 (highest potential)	—
79	35748	Gurley	AL	Zone 1 (highest potential)	—
80	35751	Hollytree	AL	Zone 1 (highest potential)	—
81	35752	Hollywood	AL	Zone 1 (highest potential)	—
82	35756	Madison	AL	Zone 1 (highest potential)	—
83	35764	Paint Rock	AL	Zone 1 (highest potential)	—
84	35766	Princeton	AL	Zone 1 (highest potential)	—
85	35768	Scottsboro	AL	Zone 1 (highest potential)	—

Methodology

This ranking is limited to EPA county-level radon zone classification. Zone 1 is an EPA county-level radon-potential category; it does not measure a home or establish whether any building is above an action level. Within Zone 1, ZIP codes are sub-ranked by Home Safety Score to organize area context.

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: 2026-10-15.

Frequently Asked Questions

What is EPA Radon Zone 1?

Zone 1 is an EPA county-level radon-potential category. It is not a measurement for a home and cannot determine whether a building is above an action level. A home test is required for that decision.

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%.