Highest Radon Risk ZIP Codes in Nevada — 2026

Out of 38 ZIP codes with data in Nevada, these are the lowest-ranked areas for radon zone. See also: National ZIP Codes with Highest Radon Risk | All Nevada Rankings

Statistic	Value
ZIP codes ranked	38
Lowest value	Zone 1 (High)
Median value	Zone 1 (High)
State	Nevada

38 Lowest-Ranked ZIP Codes

Rank	ZIP Code	City	State	Radon Zone	Safety Score
1	89017	Hiko	NV	Zone 1 (High)	40/100
2	89314	Duckwater	NV	Zone 1 (High)	40/100
3	89317	Lund	NV	Zone 1 (High)	40/100
4	89318	Mc Gill	NV	Zone 1 (High)	40/100
5	89420	Luning	NV	Zone 1 (High)	40/100
6	89422	Mina	NV	Zone 1 (High)	40/100
7	89427	Schurz	NV	Zone 1 (High)	40/100
8	89821	Crescent Valley	NV	Zone 1 (High)	40/100
9	89411	Genoa	NV	Zone 1 (High)	45/100
10	89704	Washoe Valley	NV	Zone 1 (High)	45/100
11	89430	Smith	NV	Zone 1 (High)	53/100
12	89442	Wadsworth	NV	Zone 1 (High)	53/100
13	89319	Ruth	NV	Zone 1 (High)	54/100
14	89001	Alamo	NV	Zone 1 (High)	56/100
15	89310	Austin	NV	Zone 1 (High)	56/100
16	89429	Silver Springs	NV	Zone 1 (High)	56/100
17	89460	Gardnerville	NV	Zone 1 (High)	56/100
18	89043	Pioche	NV	Zone 1 (High)	59/100
19	89410	Gardnerville	NV	Zone 1 (High)	61/100
20	89820	Battle Mountain	NV	Zone 1 (High)	61/100
21	89315	Ely	NV	Zone 1 (High)	63/100
22	89448	Zephyr Cove	NV	Zone 1 (High)	63/100
23	89008	Caliente	NV	Zone 1 (High)	65/100
24	89413	Glenbrook	NV	Zone 1 (High)	65/100
25	89423	Minden	NV	Zone 1 (High)	65/100
26	89449	Stateline	NV	Zone 1 (High)	65/100
27	89042	Panaca	NV	Zone 1 (High)	66/100
28	89311	Baker	NV	Zone 1 (High)	66/100
29	89415	Hawthorne	NV	Zone 1 (High)	66/100
30	89418	Imlay	NV	Zone 1 (High)	66/100
31	89705	Carson City	NV	Zone 1 (High)	66/100
32	89301	Ely	NV	Zone 1 (High)	67/100
33	89444	Wellington	NV	Zone 1 (High)	68/100
34	89316	Eureka	NV	Zone 1 (High)	69/100
35	89408	Fernley	NV	Zone 1 (High)	69/100
36	89447	Yerington	NV	Zone 1 (High)	69/100
37	89403	Dayton	NV	Zone 1 (High)	70/100
38	89419	Lovelock	NV	Zone 1 (High)	70/100

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%.