CONGRESSIONAL DISTRICT ID

Idaho - 1st District

119th Congress · 159 ZIP codes · Avg score 70/100 · Grade B · Updated N/A

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

ZipCheckup's versioned Home Safety Profile covers 159 ZIP codes in Idaho's 1st District: the measured model 4.0.0 average is Grade B (70/100). 708 EPA violations on record, 84 health-based.

B
District Grade
70
Avg Safety Score
159
ZIP Codes
708
Total Violations
84
Health Violations
76
Water Systems
Best ZIP: 83501 (92/100)
Lowest ZIP: 83858 (50/100)

Top Contaminants

Consumer Confidence Report Rule (50) Stage 1 DBP Rule (37) Total Trihalomethanes (TTHM) (32) Lead and Copper Rule (27) E. coli (24)

ZIP Codes in This District

100 ZIP codes tracked in Idaho's 1st District. Showing top 50 by safety score.

# ZIP Code City Safety Score Grade Violations
1 83501 Lewiston 92 A 54
2 83605 Caldwell 83 B 1
3 83616 Eagle 83 B 3
4 83634 Kuna 83 B 2
5 83644 Middleton 83 B 0
6 83669 Star 83 B 1
7 83725 Boise 83 B 0
8 83651 Nampa 80 B 9 (1 health)
9 83687 Nampa 80 B 9
10 83709 Boise 78 B 12 (4 health)
11 83607 Caldwell 77 B 21 (2 health)
12 83686 Nampa 68 C 30 (14 health)
13 83642 Meridian 67 C 1
14 83646 Meridian 67 C 0
15 83648 Mountain Home A F B 67 C 111 (1 health)
16 83815 Coeur D Alene 67 C 1
17 83837 Kellogg 67 C 0
18 83868 Smelterville 67 C 0
19 83840 Kootenai 66 C 1 (1 health)
20 83852 Ponderay 66 C 1 (1 health)
21 83835 Hayden 64 C 5 (1 health)
22 83864 Sandpoint 63 C 11 (2 health)
23 83854 Post Falls 61 C 12 (2 health)
24 83844 Moscow 59 C 24
25 83843 Moscow 57 C 25
26 83814 Coeur D Alene 52 D 23 (3 health)
27 83638 Mccall 50 D 73 (12 health)
28 83858 Rathdrum 50 D 32 (11 health)
29 83520 Ahsahka N/A N/A N/A
30 83522 Cottonwood N/A N/A N/A
31 83523 Craigmont N/A N/A N/A
32 83524 Culdesac N/A N/A N/A
33 83525 Elk City N/A N/A N/A
34 83526 Ferdinand N/A N/A N/A
35 83530 Grangeville N/A N/A N/A
36 83531 Fenn N/A N/A N/A
37 83533 Greencreek N/A N/A N/A
38 83535 Juliaetta N/A N/A N/A
39 83536 Kamiah N/A N/A 12
40 83537 Kendrick N/A N/A N/A
41 83539 Kooskia N/A N/A N/A
42 83540 Lapwai N/A N/A N/A
43 83541 Lenore N/A N/A N/A
44 83542 Lucile N/A N/A N/A
45 83543 Nezperce N/A N/A 12
46 83544 Orofino N/A N/A 0
47 83545 Peck N/A N/A N/A
48 83546 Pierce N/A N/A N/A
49 83547 Pollock N/A N/A N/A
50 83548 Reubens N/A N/A N/A

Overview

Idaho's 1st District encompasses 159 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is B (70/100).

708 EPA violations have been recorded across this district's water systems. 84 are health-based violations. About 76% of the 55 ZIP records with a reported violation count have at least one violation.

Top Contaminants

The most frequently cited water quality issues in this district:

  • Consumer Confidence Report Rule - 50 violations
  • Stage 1 DBP Rule - 37 violations
  • Total Trihalomethanes (TTHM) - 32 violations
  • Lead and Copper Rule - 27 violations
  • E. coli - 24 violations

Housing Context

Homes in this district were built on average around 1980 (~46 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 159 ZIP codes in Idaho's 1st District.

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How to cite this page

APA ZipCheckup. (2026). Idaho 1st District: 708 EPA Violations - B. https://zipcheckup.com/congressional/id-1/
BibTeX
@misc{zipcheckup-congressional-id-1,
  author = {{ZipCheckup}},
  title  = {{Idaho 1st District: 708 EPA Violations - B}},
  year   = {2026},
  url    = {https://zipcheckup.com/congressional/id-1/}
}

Page version: August 2026.

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