Out of 660 ZIP codes with data in Colorado, these are the lowest-ranked areas for gas risk score. See also: National Safest ZIP Codes for Gas & CO Risk | All Colorado Rankings
| Statistic | Value |
|---|---|
| ZIP codes ranked | 660 |
| Lowest value | 0/100 |
| Median value | 1/100 |
| State | Colorado |
100 Lowest-Ranked ZIP Codes
| Rank | ZIP Code | City | State | Gas Risk Score | Safety Score |
|---|---|---|---|---|---|
| 1 | 80020 | Broomfield | CO | 0/100 | — |
| 2 | 80023 | Broomfield | CO | 0/100 | — |
| 3 | 80025 | Eldorado Springs | CO | 0/100 | — |
| 4 | 80026 | Lafayette | CO | 0/100 | 51/100 |
| 5 | 80027 | Louisville | CO | 0/100 | 60/100 |
| 6 | 80028 | Louisville | CO | 0/100 | — |
| 7 | 80038 | Broomfield | CO | 0/100 | — |
| 8 | 80101 | Agate | CO | 0/100 | — |
| 9 | 80107 | Elizabeth | CO | 0/100 | — |
| 10 | 80117 | Kiowa | CO | 0/100 | — |
| 11 | 80301 | Boulder | CO | 0/100 | 50/100 |
| 12 | 80302 | Boulder | CO | 0/100 | 66/100 |
| 13 | 80303 | Boulder | CO | 0/100 | 60/100 |
| 14 | 80304 | Boulder | CO | 0/100 | 66/100 |
| 15 | 80305 | Boulder | CO | 0/100 | 57/100 |
| 16 | 80306 | Boulder | CO | 0/100 | — |
| 17 | 80307 | Boulder | CO | 0/100 | — |
| 18 | 80308 | Boulder | CO | 0/100 | — |
| 19 | 80309 | Boulder | CO | 0/100 | — |
| 20 | 80310 | Boulder | CO | 0/100 | — |
| 21 | 80314 | Boulder | CO | 0/100 | — |
| 22 | 80321 | Boulder | CO | 0/100 | — |
| 23 | 80322 | Boulder | CO | 0/100 | — |
| 24 | 80323 | Boulder | CO | 0/100 | — |
| 25 | 80328 | Boulder | CO | 0/100 | — |
| 26 | 80329 | Boulder | CO | 0/100 | — |
| 27 | 80420 | Alma | CO | 0/100 | — |
| 28 | 80421 | Bailey | CO | 0/100 | — |
| 29 | 80432 | Como | CO | 0/100 | — |
| 30 | 80436 | Dumont | CO | 0/100 | — |
| 31 | 80438 | Empire | CO | 0/100 | — |
| 32 | 80440 | Fairplay | CO | 0/100 | — |
| 33 | 80444 | Georgetown | CO | 0/100 | — |
| 34 | 80448 | Grant | CO | 0/100 | — |
| 35 | 80449 | Hartsel | CO | 0/100 | — |
| 36 | 80452 | Idaho Springs | CO | 0/100 | 65/100 |
| 37 | 80455 | Jamestown | CO | 0/100 | — |
| 38 | 80456 | Jefferson | CO | 0/100 | — |
| 39 | 80466 | Nederland | CO | 0/100 | 66/100 |
| 40 | 80471 | Pinecliffe | CO | 0/100 | — |
| 41 | 80475 | Shawnee | CO | 0/100 | — |
| 42 | 80476 | Silver Plume | CO | 0/100 | — |
| 43 | 80481 | Ward | CO | 0/100 | — |
| 44 | 80501 | Longmont | CO | 0/100 | 66/100 |
| 45 | 80502 | Longmont | CO | 0/100 | — |
| 46 | 80503 | Longmont | CO | 0/100 | 49/100 |
| 47 | 80510 | Allenspark | CO | 0/100 | — |
| 48 | 80533 | Hygiene | CO | 0/100 | — |
| 49 | 80540 | Lyons | CO | 0/100 | — |
| 50 | 80544 | Niwot | CO | 0/100 | — |
| 51 | 80649 | Orchard | CO | 0/100 | — |
| 52 | 80653 | Weldona | CO | 0/100 | — |
| 53 | 80654 | Wiggins | CO | 0/100 | — |
| 54 | 80701 | Fort Morgan | CO | 0/100 | — |
| 55 | 80705 | Log Lane Village | CO | 0/100 | — |
| 56 | 80720 | Akron | CO | 0/100 | — |
| 57 | 80721 | Amherst | CO | 0/100 | — |
| 58 | 80722 | Atwood | CO | 0/100 | — |
| 59 | 80723 | Brush | CO | 0/100 | — |
| 60 | 80726 | Crook | CO | 0/100 | — |
| 61 | 80727 | Eckley | CO | 0/100 | — |
| 62 | 80728 | Fleming | CO | 0/100 | — |
| 63 | 80731 | Haxtun | CO | 0/100 | — |
| 64 | 80733 | Hillrose | CO | 0/100 | — |
| 65 | 80734 | Holyoke | CO | 0/100 | — |
| 66 | 80735 | Idalia | CO | 0/100 | — |
| 67 | 80736 | Iliff | CO | 0/100 | — |
| 68 | 80737 | Julesburg | CO | 0/100 | — |
| 69 | 80740 | Lindon | CO | 0/100 | — |
| 70 | 80741 | Merino | CO | 0/100 | — |
| 71 | 80743 | Otis | CO | 0/100 | — |
| 72 | 80744 | Ovid | CO | 0/100 | — |
| 73 | 80745 | Padroni | CO | 0/100 | — |
| 74 | 80746 | Paoli | CO | 0/100 | — |
| 75 | 80747 | Peetz | CO | 0/100 | — |
| 76 | 80749 | Sedgwick | CO | 0/100 | — |
| 77 | 80750 | Snyder | CO | 0/100 | — |
| 78 | 80751 | Sterling | CO | 0/100 | — |
| 79 | 80755 | Vernon | CO | 0/100 | — |
| 80 | 80757 | Woodrow | CO | 0/100 | — |
| 81 | 80758 | Wray | CO | 0/100 | — |
| 82 | 80759 | Yuma | CO | 0/100 | — |
| 83 | 80801 | Anton | CO | 0/100 | — |
| 84 | 80802 | Arapahoe | CO | 0/100 | — |
| 85 | 80804 | Arriba | CO | 0/100 | — |
| 86 | 80805 | Bethune | CO | 0/100 | — |
| 87 | 80807 | Burlington | CO | 0/100 | — |
| 88 | 80810 | Cheyenne Wells | CO | 0/100 | — |
| 89 | 80812 | Cope | CO | 0/100 | — |
| 90 | 80813 | Cripple Creek | CO | 0/100 | — |
| 91 | 80814 | Divide | CO | 0/100 | — |
| 92 | 80815 | Flagler | CO | 0/100 | — |
| 93 | 80816 | Florissant | CO | 0/100 | — |
| 94 | 80818 | Genoa | CO | 0/100 | — |
| 95 | 80820 | Guffey | CO | 0/100 | — |
| 96 | 80821 | Hugo | CO | 0/100 | — |
| 97 | 80822 | Joes | CO | 0/100 | — |
| 98 | 80823 | Karval | CO | 0/100 | — |
| 99 | 80824 | Kirk | CO | 0/100 | — |
| 100 | 80825 | Kit Carson | CO | 0/100 | — |
Methodology
Safest gas rankings show ZIP codes with the lowest PHMSA gas distribution incident risk scores. A score of 0-5 means the county has no or very few recorded incidents since 2004. Low scores indicate areas with well-maintained gas infrastructure and minimal historical incidents.
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 makes an area safe from gas incidents?
Low gas risk areas typically have newer pipeline infrastructure, fewer distribution lines per capita, or areas that rely less on natural gas for heating. However, individual home safety still depends on appliance maintenance and CO detector placement.
Should I still install CO detectors in low-risk areas?
Yes. The CPSC recommends CO detectors in every home regardless of area risk. Carbon monoxide can come from any fuel-burning appliance — furnaces, water heaters, fireplaces, generators, and even attached garages.
Explore More Rankings
- Worst ZIP Codes for Lead in Water in Colorado
- ZIP Codes with Most EPA Violations in Colorado
- Lowest Home Safety Scores in Colorado
- Highest Home Safety Scores in Colorado
- Historical NFIP Claim Counts in Colorado
- ZIP Codes with Highest Energy Costs in Colorado
- EPA Radon Zone 1 ZIP Codes in Colorado
- ZIP Codes with PFAS Detections in Colorado
- Least Reliable Water Systems in Colorado
- Environmental Justice Concern Areas in Colorado
- Worst ZIP Codes for Homebuyers in Colorado
- ZIP Codes with Worst CO & Gas Risk in Colorado
- ZIP Codes with Worst Wildfire Smoke Risk in Colorado
- Safest ZIP Codes for Wildfire Smoke in Colorado
- All Rankings