Montana — 2nd District
119th Congress · 267 ZIP codes · Avg score 55/100 · Grade C · Updated 2026-07-19
Data: EPA SDWIS / Census 119th Congress Last verified: 2026-07-19
ZipCheckup tracks water safety for 267 ZIP codes in Montana's 2nd District: the district earns a grade C (55/100). 1,783 EPA violations on record, 405 health-based.
Top Contaminants
ZIP Codes in This District
100 ZIP codes tracked in Montana's 2nd District. Showing top 50 by safety score.
| # | ZIP Code | City | Safety Score | Grade | Violations |
|---|---|---|---|---|---|
| 1 | 59011 | Big Timber | 83 | B | 0 |
| 2 | 59033 | Greycliff | 83 | B | 0 |
| 3 | 59055 | Melville | 83 | B | 0 |
| 4 | 59059 | Musselshell | 83 | B | 0 |
| 5 | 59085 | Two Dot | 83 | B | 1 |
| 6 | 59074 | Ryegate | 81 | B | 7 (2 health) |
| 7 | 59054 | Melstone | 80 | B | 3 |
| 8 | 59037 | Huntley | 78 | B | 1 |
| 9 | 59079 | Shepherd | 77 | B | 9 |
| 10 | 59104 | Billings | 75 | B | 34 (5 health) |
| 11 | 59036 | Harlowton | 73 | B | 10 |
| 12 | 59103 | Billings | 73 | B | 34 (5 health) |
| 13 | 59107 | Billings | 73 | B | 34 (5 health) |
| 14 | 59108 | Billings | 73 | B | 34 (5 health) |
| 15 | 59111 | Billings | 73 | B | 34 (5 health) |
| 16 | 59112 | Billings | 73 | B | 34 (5 health) |
| 17 | 59114 | Billings | 73 | B | 34 (5 health) |
| 18 | 59115 | Billings | 73 | B | 34 (5 health) |
| 19 | 59116 | Billings | 73 | B | 34 (5 health) |
| 20 | 59117 | Billings | 73 | B | 34 (5 health) |
| 21 | 59044 | Laurel | 72 | B | 7 (1 health) |
| 22 | 59453 | Judith Gap | 72 | B | 1 |
| 23 | 59087 | Winnett | 71 | B | 4 |
| 24 | 59008 | Belfry | 70 | B | 0 |
| 25 | 59030 | Gardiner | 70 | B | 1 |
| 26 | 59070 | Roberts | 70 | B | 1 |
| 27 | 59102 | Billings | 70 | B | 34 (5 health) |
| 28 | 59105 | Billings | 70 | B | 34 (5 health) |
| 29 | 59106 | Billings | 70 | B | 34 (5 health) |
| 30 | 59223 | Fort Peck | 70 | B | 1 |
| 31 | 59254 | Plentywood | 70 | B | 0 |
| 32 | 59261 | Saco | 70 | B | 1 |
| 33 | 59327 | Forsyth | 70 | B | 0 |
| 34 | 59421 | Cascade | 70 | B | 0 |
| 35 | 59443 | Fort Shaw | 70 | B | 0 |
| 36 | 59485 | Ulm | 70 | B | 1 |
| 37 | 59540 | Rudyard | 70 | B | 1 |
| 38 | 59014 | Bridger | 69 | C | 2 |
| 39 | 59317 | Broadus | 69 | C | 3 |
| 40 | 59353 | Wibaux | 69 | C | 17 (1 health) |
| 41 | 59422 | Choteau | 69 | C | 3 |
| 42 | 59472 | Sand Coulee | 69 | C | 6 (1 health) |
| 43 | 59524 | Dodson | 69 | C | 22 (1 health) |
| 44 | 59631 | Basin | 69 | C | 9 (1 health) |
| 45 | 59635 | East Helena | 69 | C | 6 (1 health) |
| 46 | 59644 | Townsend | 69 | C | 2 |
| 47 | 59018 | Clyde Park | 68 | C | 4 |
| 48 | 59027 | Emigrant | 68 | C | 5 |
| 49 | 59029 | Fromberg | 68 | C | 14 (2 health) |
| 50 | 59218 | Culbertson | 68 | C | 2 |
Overview
Montana's 2nd District encompasses 267 ZIP codes tracked by ZipCheckup. The district's average Home Safety Score is C (55/100).
1783 EPA violations have been recorded across this district's water systems. 405 are health-based violations. About 47% of tracked ZIP codes have at least one violation.
Top Contaminants
The most frequently cited water quality issues in this district:
- Surface Water Treatment Rule - 369 violations
- Stage 1 DBP Rule - 309 violations
- Contaminant 0700 - 270 violations
- Consumer Confidence Report Rule - 237 violations
- Total Trihalomethanes (TTHM) - 206 violations
Housing Context
Homes in this district were built on average around 1971 (~55 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
- Water quality violations: EPA Safe Drinking Water Information System (SDWIS)
- Congressional district boundaries: U.S. Census Bureau, 119th Congress
- Housing age: U.S. Census Bureau American Community Survey
Updated daily. Data covers 267 ZIP codes in Montana's 2nd District.