Bristol Bay County, Alaska
3 ZIP codes · Avg score 81/100 · Grade B · Updated 2026-06-04
For households in Bristol Bay County, the 3 ZIP codes on record show consistently safe tap water.
How Bristol Bay County Compares
How Bristol Bay County Compares
Bristol Bay County scores 6 points above the Alaska state average (75/100) and 13 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
Key Risk Factors
Health risk index: 13.4 (asthma 11%, diabetes 11.3%)
Estimated additional annual cost per homeowner: $440, driven primarily by energy_code_gap
Infrastructure: 0.473% avg pipe failure probability, 67% of ZIPs at high risk
58% of homes built before 1978 (lead paint era)
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: $440
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
895 housing units in Bristol Bay 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 Bristol Bay County
Remediation costs are relatively manageable for most homeowners in Bristol Bay 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 Bristol Bay County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
All ZIP Codes in Bristol Bay County
3 ZIP codes tracked in Bristol Bay County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 99670 | South Naknek | 98 | A | 15 (1 health) | $104K |
| 2 | 99613 | King Salmon | 94 | A | 2 | $318K |
| 3 | 99633 | Naknek | 50 | D | 0 | $280K |
Recommended Buyer Guides for Bristol Bay County
Filtered against federal data, fitted to local risks.
- Best Lead Paint Test Kits — 58% of homes built before 1978
Overview
Bristol Bay County in Alaska covers 3 ZIP codes with an average Home Safety Score of B (81/100).
2 of 3 ZIP codes have recorded EPA violations. 1 health-based violation 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.