Prince of Wales-Hyder County, Alaska
7 ZIP codes · Avg score 66/100 · Grade C · Updated 2026-06-04
Water monitoring across Prince of Wales-Hyder County's 7 ZIP codes paints a mid-range picture — solid compliance in some zones, documented concerns in others; most violations on record are concentrated in specific prior years rather than spread evenly across the full compliance history, and the overall county grade has held steady in the middle tier without major shifts in either direction.
How Prince of Wales-Hyder County Compares
How Prince of Wales-Hyder County Compares
Prince of Wales-Hyder County scores 9 points below the Alaska state average (75/100) and 2 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Prince of Wales-Hyder County, Alaska
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 15.4 (asthma 11.9%, diabetes 14%)
Estimated additional annual cost per homeowner: $830, driven primarily by sea_level
Infrastructure: 0.559% avg pipe failure probability, 57% of ZIPs at high risk
52.3% of homes built before 1978 (lead paint era)
Violation History (2021–2025)
→ Stable trendEPA violation counts by year across Prince of Wales-Hyder County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 12 violations. Past 5 years: 48 total (48 health-based).
Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $830
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
2,630 housing units in Prince of Wales-Hyder County
Source: U.S. Census Bureau ACS B25034 (Year Structure Built).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Prince of Wales-Hyder County
Remediation costs are relatively manageable for most homeowners in Prince of Wales-Hyder County, representing a small fraction of property value.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Prince of Wales-Hyder County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water Systems with Most Violations
Top 5 systems in Prince of Wales-Hyder County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Hydaburg | 415 | 83 |
| 2 | Port Alexander Public Water System | 95 | 66 |
| 3 | Kake Municipal Water | 415 | 45 |
| 4 | City of Thorne Bay, | 470 | 28 |
| 5 | Klawock | 904 | 26 |
7 total water systems serve Prince of Wales-Hyder County.
All ZIP Codes in Prince of Wales-Hyder County
7 ZIP codes tracked in Prince of Wales-Hyder County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 99921 | Craig | 87 | A | 2 | $263K |
| 2 | 99836 | Port Alexander | 83 | B | 66 (4 health) | $113K |
| 3 | 99922 | Hydaburg | 77 | B | 83 (6 health) | $120K |
| 4 | 99918 | Coffman Cove | 66 | C | 23 (9 health) | $375K |
| 5 | 99925 | Klawock | 55 | C | 26 (19 health) | $271K |
| 6 | 99919 | Thorne Bay | 54 | D | 28 (1 health) | $244K |
| 7 | 99830 | Kake | 39 | F | 45 (21 health) | $158K |
Recommended Buyer Guides for Prince of Wales-Hyder County
Methodologically, the recommendation order reflects severity in the federal record: contaminants flagged in EPA detection records for this county outrank generic water concerns, FEMA-confirmed hazard ratings shift emergency-related categories upward, and CDC lead-exposure markers govern when lead-test kits and certified filters appear at the top of the list.
- Best Water Filters for Lead — Lead above EPA action level in 1 ZIP code
- Best Lead Paint Test Kits — 52.3% of homes built before 1978
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
- Best Radon Test Kits — EPA Radon Zone 1 (highest risk) dominant in county
Deep Dive Reports
Detailed analysis for Prince of Wales-Hyder County, Alaska
Overview
Prince of Wales-Hyder County in Alaska covers 7 ZIP codes with an average Home Safety Score of C (66/100).
7 of 7 ZIP codes have recorded EPA violations. 60 health-based violations have been documented.
← Back to Alaska water quality report
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Updated daily.