CONGRESSIONAL DISTRICT AK

Alaska — At-Large

119th Congress · 274 ZIP codes · Avg score 70/100 · Grade B · Updated 2026-06-03

Data: EPA SDWIS / Census 119th Congress Last verified: 2026-06-03

B
District Grade
70
Avg Safety Score
274
ZIP Codes
22952
Total Violations
1350
Health Violations
245
Water Systems
Jber
Best ZIP: 99505 (88/100)
Tatitlek
Lowest ZIP: 99677 (22/100)

Top Contaminants

E. coli (4765) Consumer Confidence Report Rule (3158) Fecal Coliform (2596) Revised Total Coliform Rule (2314) Total Trihalomethanes (TTHM) (969)

ZIP Codes in This District

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

# ZIP Code City Safety Score Grade Violations
1 99505 Jber 88 A 0
2 99553 Akutan 88 A 0
3 99565 Chignik Lagoon 88 A 0
4 99585 Marshall 88 A 0
5 99590 Grayling 88 A 0
6 99641 Nunapitchuk 88 A 0
7 99655 Quinhagak 88 A 0
8 99671 Stebbins 88 A 0
9 99693 Whittier 88 A 1
10 99703 Fort Wainwright 88 A 0
11 99721 Anaktuvuk Pass 88 A 0
12 99737 Delta Junction 88 A 0
13 99742 Gambell 88 A 0
14 99747 Kaktovik 88 A 0
15 99749 Kiana 88 A 0
16 99767 Rampart 88 A 0
17 99783 Wales 88 A 0
18 99802 Juneau 88 A 1
19 99803 Juneau 88 A 1
20 99811 Juneau 88 A 1
21 99812 Juneau 88 A 1
22 99850 Juneau 88 A 1
23 99506 Jber 87 A 0
24 99576 Dillingham 87 A 299 (1 health)
25 99602 Holy Cross 87 A 6 (1 health)
26 99612 King Cove 87 A 6 (1 health)
27 99615 Kodiak 87 A 41 (1 health)
28 99619 Kodiak 87 A 41 (1 health)
29 99624 Larsen Bay 87 A 17 (1 health)
30 99630 Mekoryuk 87 A 12 (1 health)
31 99635 Nikiski 87 A 4 (1 health)
32 99636 New Stuyahok 87 A 28 (1 health)
33 99657 Russian Mission 87 A 18 (1 health)
34 99670 South Naknek 87 A 15 (1 health)
35 99674 Sutton 87 A 3
36 99678 Togiak 87 A 2
37 99683 Trapper Creek 87 A 0
38 99686 Valdez 87 A 0
39 99697 Kodiak 87 A 41 (1 health)
40 99765 Nulato 87 A 7 (1 health)
41 99774 Stevens Village 87 A 52 (1 health)
42 99784 White Mountain 87 A 4 (1 health)
43 99919 Thorne Bay 87 A 122 (1 health)
44 99587 Girdwood 86 A 3
45 99644 Ouzinkie 86 A 6 (2 health)
46 99659 Saint Michael 86 A 24 (2 health)
47 99680 Tuntutuliak 86 A 57 (2 health)
48 99681 Tununak 86 A 82 (2 health)
49 99702 Eielson Afb 86 A 5 (1 health)
50 99781 Venetie 86 A 71 (2 health)

Overview

Alaska's At-Large serving an estimated 8,986,668 residents encompasses 274 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (70/100).

22952 EPA violations have been recorded across this district's water systems. 1350 are health-based violations. About 61% of tracked ZIP codes have at least one violation.

Top Contaminants

The most frequently cited water quality issues in this district:

  • E. coli — 4765 violations
  • Consumer Confidence Report Rule — 3158 violations
  • Fecal Coliform — 2596 violations
  • Revised Total Coliform Rule — 2314 violations
  • Total Trihalomethanes (TTHM) — 969 violations

Housing Context

Homes in this district were built on average around 1985 (~41 years old). Older homes may have lead pipes or solder — consider a water filter if your home predates 1986.

Lead Alert: 3 ZIP codes in this district exceed the EPA action level for lead. Consider using a certified lead-removal filter.

Data Sources

Updated daily. Data covers 274 ZIP codes in Alaska's At-Large.

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