Chugach County, Alaska
2 ZIP codes · Avg score 55/100 · Grade C · Updated 2026-06-03
Chugach County shows moderate water quality across its 2 ZIP codes — some areas carry violations worth monitoring.
How Chugach County Compares
How Chugach County Compares
Chugach County scores 20 points below the Alaska state average (75/100) and 13 points below the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-03
Key Risk Factors
Health risk index: 11.9 (asthma 10%, diabetes 9.6%)
Estimated additional annual cost per homeowner: $1,080, driven primarily by energy_code_gap
Infrastructure: 0.66% avg pipe failure probability, 50% of ZIPs at high risk
76% of homes built before 1978 (lead paint era)
Violation History (2023–2025)
→ Stable trendEPA violation counts by year across Chugach County water systems. Health-based shown in red, total in blue.
Peak year: 2023 with 7 violations. Past 5 years: 15 total (15 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: $1,080
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Housing Age Distribution
419 housing units in Chugach 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 Chugach County
Water safety remediation is a moderate expense relative to home values. Most homeowners can address issues through staged improvements over time.
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 Chugach County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
All ZIP Codes in Chugach County
2 ZIP codes tracked in Chugach County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 99693 | Whittier | 88 | A | 1 | $84K |
| 2 | 99677 | Tatitlek | 22 | F | 107 (21 health) | — |
Recommended Buyer Guides for Chugach County
Editorial methodology pairs each documented risk in this county with the buyer category that addresses it, drawing on water-quality detections, housing-stock lead exposure, EPA Radon Zone designation, and FEMA flood and wildfire ratings. NSF-certified options surface where applicable, and products that match the specific contaminant take priority.
- Best Water Filters for Lead — Lead above EPA action level in 1 ZIP code
- Best Lead Paint Test Kits — 76% 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
Overview
Chugach County in Alaska covers 2 ZIP codes with an average Home Safety Score of C (55/100).
2 of 2 ZIP codes have recorded EPA violations. 21 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.