2026 Rankings

EPA Radon Zone 1 ZIP Codes in Minnesota - 2026

Last updated: October 18, 2026

731 ZIP codes ranked by Radon Zone #1: ZIP 55110 (Saint Paul, MN) - Zone 1 (highest potential)
Lead Violations Lowest Score Safest Flood Risk Energy Cost Radon PFAS Reliability EJ Index Homebuyer Risk CO & Gas Safest Gas Remediation Burden Unresolved Violations (by Utility) Water Equity (by Utility)

Out of 731 ZIP codes with data in Minnesota, these are mapped to counties in EPA Radon Zone 1. See also: National ZIP Codes in EPA Radon Zone 1 | All Minnesota Rankings

Statistic Value
ZIP codes ranked 731
Lowest value Zone 1 (highest potential)
Median value Zone 1 (highest potential)
State Minnesota

ZIP Codes in EPA Radon Zone 1

Rank ZIP Code City State Radon Zone Safety Score
1 55110 Saint Paul MN Zone 1 (highest potential) 44/100
2 55075 South Saint Paul MN Zone 1 (highest potential) 47/100
3 55125 Saint Paul MN Zone 1 (highest potential) 47/100
4 55033 Hastings MN Zone 1 (highest potential) 49/100
5 55042 Lake Elmo MN Zone 1 (highest potential) 49/100
6 55082 Stillwater MN Zone 1 (highest potential) 49/100
7 55443 Minneapolis MN Zone 1 (highest potential) 49/100
8 56387 Waite Park MN Zone 1 (highest potential) 49/100
9 55055 Newport MN Zone 1 (highest potential) 50/100
10 55430 Minneapolis MN Zone 1 (highest potential) 50/100
11 55077 Inver Grove Heights MN Zone 1 (highest potential) 64/100
12 55107 Saint Paul MN Zone 1 (highest potential) 64/100
13 55119 Saint Paul MN Zone 1 (highest potential) 64/100
14 55128 Saint Paul MN Zone 1 (highest potential) 64/100
15 55362 Monticello MN Zone 1 (highest potential) 64/100
16 55115 Saint Paul MN Zone 1 (highest potential) 65/100
17 55987 Winona MN Zone 1 (highest potential) 65/100
18 55043 Lakeland MN Zone 1 (highest potential) 66/100
19 55044 Lakeville MN Zone 1 (highest potential) 66/100
20 55068 Rosemount MN Zone 1 (highest potential) 66/100
21 55311 Osseo MN Zone 1 (highest potential) 66/100
22 55328 Delano MN Zone 1 (highest potential) 66/100
23 55331 Excelsior MN Zone 1 (highest potential) 66/100
24 55343 Hopkins MN Zone 1 (highest potential) 66/100
25 55369 Osseo MN Zone 1 (highest potential) 66/100
26 55372 Prior Lake MN Zone 1 (highest potential) 66/100
27 55374 Rogers MN Zone 1 (highest potential) 66/100
28 55379 Shakopee MN Zone 1 (highest potential) 66/100
29 55401 Minneapolis MN Zone 1 (highest potential) 66/100
30 55402 Minneapolis MN Zone 1 (highest potential) 66/100
31 55403 Minneapolis MN Zone 1 (highest potential) 66/100
32 55404 Minneapolis MN Zone 1 (highest potential) 66/100
33 55405 Minneapolis MN Zone 1 (highest potential) 66/100
34 55406 Minneapolis MN Zone 1 (highest potential) 66/100
35 55407 Minneapolis MN Zone 1 (highest potential) 66/100
36 55408 Minneapolis MN Zone 1 (highest potential) 66/100
37 55409 Minneapolis MN Zone 1 (highest potential) 66/100
38 55410 Minneapolis MN Zone 1 (highest potential) 66/100
39 55411 Minneapolis MN Zone 1 (highest potential) 66/100
40 55412 Minneapolis MN Zone 1 (highest potential) 66/100
41 55413 Minneapolis MN Zone 1 (highest potential) 66/100
42 55414 Minneapolis MN Zone 1 (highest potential) 66/100
43 55415 Minneapolis MN Zone 1 (highest potential) 66/100
44 55416 Minneapolis MN Zone 1 (highest potential) 66/100
45 55417 Minneapolis MN Zone 1 (highest potential) 66/100
46 55418 Minneapolis MN Zone 1 (highest potential) 66/100
47 55419 Minneapolis MN Zone 1 (highest potential) 66/100
48 55422 Minneapolis MN Zone 1 (highest potential) 66/100
49 55423 Minneapolis MN Zone 1 (highest potential) 66/100
50 55424 Minneapolis MN Zone 1 (highest potential) 66/100
51 55428 Minneapolis MN Zone 1 (highest potential) 66/100
52 55439 Minneapolis MN Zone 1 (highest potential) 66/100
53 55454 Minneapolis MN Zone 1 (highest potential) 66/100
54 55455 Minneapolis MN Zone 1 (highest potential) 66/100
55 55906 Rochester MN Zone 1 (highest potential) 66/100
56 55963 Pine Island MN Zone 1 (highest potential) 66/100
57 56258 Marshall MN Zone 1 (highest potential) 66/100
58 56301 Saint Cloud MN Zone 1 (highest potential) 66/100
59 56374 Saint Joseph MN Zone 1 (highest potential) 66/100
60 56378 Sauk Centre MN Zone 1 (highest potential) 66/100
61 55009 Cannon Falls MN Zone 1 (highest potential) 67/100
62 55016 Cottage Grove MN Zone 1 (highest potential) 67/100
63 55020 Elko New Market MN Zone 1 (highest potential) 67/100
64 55024 Farmington MN Zone 1 (highest potential) 67/100
65 55041 Lake City MN Zone 1 (highest potential) 67/100
66 55066 Red Wing MN Zone 1 (highest potential) 67/100
67 55089 Welch MN Zone 1 (highest potential) 67/100
68 55122 Saint Paul MN Zone 1 (highest potential) 67/100
69 55123 Saint Paul MN Zone 1 (highest potential) 67/100
70 55124 Saint Paul MN Zone 1 (highest potential) 67/100
71 55301 Albertville MN Zone 1 (highest potential) 67/100
72 55302 Annandale MN Zone 1 (highest potential) 67/100
73 55305 Hopkins MN Zone 1 (highest potential) 67/100
74 55313 Buffalo MN Zone 1 (highest potential) 67/100
75 55316 Champlin MN Zone 1 (highest potential) 67/100
76 55337 Burnsville MN Zone 1 (highest potential) 67/100
77 55340 Hamel MN Zone 1 (highest potential) 67/100
78 55344 Eden Prairie MN Zone 1 (highest potential) 67/100
79 55352 Jordan MN Zone 1 (highest potential) 67/100
80 55364 Mound MN Zone 1 (highest potential) 67/100
81 55373 Rockford MN Zone 1 (highest potential) 67/100
82 55378 Savage MN Zone 1 (highest potential) 67/100
83 55391 Wayzata MN Zone 1 (highest potential) 67/100
84 55426 Minneapolis MN Zone 1 (highest potential) 67/100
85 55427 Minneapolis MN Zone 1 (highest potential) 67/100
86 55431 Minneapolis MN Zone 1 (highest potential) 67/100
87 55437 Minneapolis MN Zone 1 (highest potential) 67/100
88 55447 Minneapolis MN Zone 1 (highest potential) 67/100
89 55920 Byron MN Zone 1 (highest potential) 67/100
90 55972 Saint Charles MN Zone 1 (highest potential) 67/100
91 55976 Stewartville MN Zone 1 (highest potential) 67/100
92 56001 Mankato MN Zone 1 (highest potential) 67/100
93 56011 Belle Plaine MN Zone 1 (highest potential) 67/100
94 56071 New Prague MN Zone 1 (highest potential) 67/100
95 56320 Cold Spring MN Zone 1 (highest potential) 67/100
96 56352 Melrose MN Zone 1 (highest potential) 67/100
97 56377 Sartell MN Zone 1 (highest potential) 67/100

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: 2026-10-18.

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%.

Explore More Rankings

How this ranking is calculated, data sources, and limitations: Rankings Methodology →

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Disclaimer: Rankings are based on EPA, FEMA, and federal agency data. They reflect historical patterns and risk indicators, not necessarily current conditions. For the most current information, contact your local water utility or request a Consumer Confidence Report.

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