2026 Rankings

Worst CO & Gas Risk ZIP Codes in Wyoming — 2026

Last updated: August 31, 2026

74 ZIP codes ranked by Gas Risk Score #1: ZIP 83001 (Jackson, WY) - 3/100

Out of 74 ZIP codes with data in Wyoming, these are the highest-ranked areas for gas risk score. See also: National ZIP Codes with Worst CO & Gas Safety Risk | All Wyoming Rankings

Statistic Value
ZIP codes ranked 74
Highest value 3/100
Median value 1/100
State Wyoming

Top 74 Worst ZIP Codes

Rank ZIP Code City State Gas Risk Score Safety Score
1 83001 Jackson WY 3/100 63/100
2 83002 Jackson WY 3/100
3 83011 Kelly WY 3/100
4 83012 Moose WY 3/100
5 83013 Moran WY 3/100
6 83014 Wilson WY 3/100
7 83025 Teton Village WY 3/100
8 83414 Alta WY 3/100
9 82001 Cheyenne WY 2/100 63/100
10 82002 Cheyenne WY 2/100
11 82003 Cheyenne WY 2/100
12 82005 Fe Warren Afb WY 2/100 65/100
13 82006 Cheyenne WY 2/100
14 82007 Cheyenne WY 2/100 66/100
15 82008 Cheyenne WY 2/100
16 82009 Cheyenne WY 2/100 65/100
17 82010 Cheyenne WY 2/100
18 82050 Albin WY 2/100
19 82053 Burns WY 2/100
20 82054 Carpenter WY 2/100
21 82059 Granite Canon WY 2/100
22 82060 Hillsdale WY 2/100
23 82061 Horse Creek WY 2/100
24 82081 Meriden WY 2/100
25 82082 Pine Bluffs WY 2/100
26 82190 Yellowstone National Park WY 1/100
27 82322 Bairoil WY 1/100
28 82336 Wamsutter WY 1/100
29 82414 Cody WY 1/100 66/100
30 82423 Frannie WY 1/100
31 82433 Meeteetse WY 1/100
32 82435 Powell WY 1/100 67/100
33 82440 Ralston WY 1/100
34 82450 Wapiti WY 1/100
35 82701 Newcastle WY 1/100
36 82715 Four Corners WY 1/100
37 82716 Gillette WY 1/100 64/100
38 82717 Gillette WY 1/100
39 82718 Gillette WY 1/100 66/100
40 82723 Osage WY 1/100
41 82725 Recluse WY 1/100
42 82727 Rozet WY 1/100 66/100
43 82730 Upton WY 1/100
44 82731 Weston WY 1/100
45 82732 Wright WY 1/100
46 82801 Sheridan WY 1/100 67/100
47 82831 Arvada WY 1/100
48 82832 Banner WY 1/100
49 82833 Big Horn WY 1/100
50 82835 Clearmont WY 1/100
51 82836 Dayton WY 1/100
52 82837 Leiter WY 1/100
53 82838 Parkman WY 1/100
54 82839 Ranchester WY 1/100
55 82842 Story WY 1/100
56 82844 Wolf WY 1/100
57 82845 Wyarno WY 1/100
58 82901 Rock Springs WY 1/100 66/100
59 82902 Rock Springs WY 1/100
60 82929 Little America WY 1/100
61 82930 Evanston WY 1/100 66/100
62 82931 Evanston WY 1/100
63 82932 Farson WY 1/100
64 82933 Fort Bridger WY 1/100
65 82934 Granger WY 1/100
66 82935 Green River WY 1/100 66/100
67 82936 Lonetree WY 1/100
68 82937 Lyman WY 1/100
69 82938 Mc Kinnon WY 1/100
70 82939 Mountain View WY 1/100
71 82942 Point Of Rocks WY 1/100
72 82943 Reliance WY 1/100 67/100
73 82944 Robertson WY 1/100
74 82945 Superior WY 1/100

Methodology

Gas risk rankings use PHMSA gas distribution incident data (2004-2026), mapped to counties and ZIP codes. Risk scores (0-100) factor in total incidents, fatalities, and recency. Counties with more incidents, deaths, and recent events score highest. Data source: U.S. DOT Pipeline and Hazardous Materials Safety Administration.

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: 2026-08-31.

Frequently Asked Questions

What is a gas distribution incident?

Gas distribution incidents involve failures in the local natural gas pipeline network — the pipes that carry gas from main lines to homes and businesses. These can cause explosions, fires, carbon monoxide poisoning, and property damage. PHMSA tracks all reported incidents nationally.

How can I protect my home from CO and gas leaks?

Install CO detectors on every level of your home (CPSC recommendation). Have gas appliances inspected annually by a licensed technician. Know the signs of a gas leak: rotten egg smell, hissing near gas lines, dead vegetation near pipelines. If you smell gas, leave immediately and call 911.

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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