CONGRESSIONAL DISTRICT WY

Wyoming - At-Large

119th Congress · 195 ZIP codes · Avg score 63/100 · Grade C · Updated N/A

Data: EPA SDWIS / Census 119th Congress Last verified: N/A

ZipCheckup's versioned Home Safety Profile covers 195 ZIP codes in Wyoming's At-Large: the measured model 4.0.0 average is Grade C (63/100). 800 EPA violations on record, 69 health-based.

C
District Grade
63
Avg Safety Score
195
ZIP Codes
800
Total Violations
69
Health Violations
70
Water Systems
Best ZIP: 82401 (67/100)
Lowest ZIP: 82501 (36/100)

Top Contaminants

Haloacetic Acids (HAA5) (45) Total Trihalomethanes (TTHM) (22) Surface Water Treatment Rule (22) Stage 1 DBP Rule (20) Consumer Confidence Report Rule (18)

ZIP Codes in This District

100 ZIP codes tracked in Wyoming's At-Large. Showing top 50 by safety score.

# ZIP Code City Safety Score Grade Violations
1 82401 Worland 67 C 0
2 82435 Powell 67 C 0
3 82633 Douglas 67 C 0
4 82801 Sheridan 67 C 0
5 82943 Reliance 67 C 0
6 82007 Cheyenne 66 C 4 (1 health)
7 82070 Laramie 66 C 1
8 82072 Laramie 66 C 1
9 82414 Cody 66 C 3
10 82609 Casper 66 C 2
11 82718 Gillette 66 C 2
12 82727 Rozet 66 C 2
13 82901 Rock Springs 66 C 3
14 82930 Evanston 66 C 3
15 82935 Green River 66 C 2
16 82005 Fe Warren Afb 65 C 6
17 82009 Cheyenne 65 C 2 (2 health)
18 82644 Mills 65 C 3 (3 health)
19 82601 Casper 64 C 5 (3 health)
20 82716 Gillette 64 C 7 (1 health)
21 82001 Cheyenne 63 C 8 (2 health)
22 82604 Casper 63 C 6 (3 health)
23 83001 Jackson 63 C 196 (1 health)
24 82834 Buffalo 62 C 7 (6 health)
25 83101 Kemmerer 60 C 10 (10 health)
26 83116 Diamondville 60 C 10 (10 health)
27 82301 Rawlins 53 D 38 (4 health)
28 82520 Lander 49 D 1 (1 health)
29 82501 Riverton 36 F 88 (5 health)
30 82002 Cheyenne N/A N/A N/A
31 82003 Cheyenne N/A N/A N/A
32 82006 Cheyenne N/A N/A N/A
33 82008 Cheyenne N/A N/A N/A
34 82010 Cheyenne N/A N/A N/A
35 82050 Albin N/A N/A N/A
36 82051 Bosler N/A N/A N/A
37 82052 Buford N/A N/A N/A
38 82053 Burns N/A N/A N/A
39 82054 Carpenter N/A N/A N/A
40 82055 Centennial N/A N/A N/A
41 82058 Garrett N/A N/A N/A
42 82059 Granite Canon N/A N/A N/A
43 82060 Hillsdale N/A N/A N/A
44 82061 Horse Creek N/A N/A N/A
45 82063 Jelm N/A N/A N/A
46 82071 Laramie N/A N/A N/A
47 82073 Laramie N/A N/A N/A
48 82081 Meriden N/A N/A N/A
49 82082 Pine Bluffs N/A N/A N/A
50 82083 Rock River N/A N/A N/A

Overview

Wyoming's At-Large encompasses 195 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (63/100).

800 EPA violations have been recorded across this district's water systems. 69 are health-based violations. About 75% of the 48 ZIP records with a reported violation count have at least one violation.

Top Contaminants

The most frequently cited water quality issues in this district:

  • Haloacetic Acids (HAA5) - 45 violations
  • Total Trihalomethanes (TTHM) - 22 violations
  • Surface Water Treatment Rule - 22 violations
  • Stage 1 DBP Rule - 20 violations
  • Consumer Confidence Report Rule - 18 violations

Housing Context

Homes in this district were built on average around 1976 (~50 years old). Older homes may have lead pipes or solder - consider a water filter if your home predates 1986.

Data Sources

Updated daily. Data covers 195 ZIP codes in Wyoming's At-Large.

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How to cite this page

APA ZipCheckup. (2026). Wyoming At-Large: 800 EPA Violations - C. https://zipcheckup.com/congressional/wy-at-large/
BibTeX
@misc{zipcheckup-congressional-wy-at-large,
  author = {{ZipCheckup}},
  title  = {{Wyoming At-Large: 800 EPA Violations - C}},
  year   = {2026},
  url    = {https://zipcheckup.com/congressional/wy-at-large/}
}

Page version: August 2026.

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