Anchorage County, Alaska
33 ZIP codes · Avg score 69/100 · Grade C · Updated 2026-06-04
Within Anchorage County, safety data across 33 ZIP codes suggests a fair but uneven system — violations are present and worth checking at the ZIP level.
How Anchorage County Compares
How Anchorage County Compares
Anchorage County scores 6 points below the Alaska state average (75/100) and 1 points above the national average (68/100).
Data: EPA SDWIS Last verified: 2026-06-04
ZIP Code Risk Map
Water Quality Map: Anchorage County, Alaska
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 11.6 (asthma 10.7%, diabetes 8.9%)
Estimated additional annual cost per homeowner: $941, driven primarily by sea_level
Infrastructure: 0.434% avg pipe failure probability, 42% of ZIPs at high risk
Violation History (2021–2024)
→ Stable trendEPA violation counts by year across Anchorage County water systems. Health-based shown in red, total in blue.
Peak year: 2022 with 28 violations. Past 5 years: 56 total (56 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: $941
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Anchorage County
Remediation costs are relatively manageable for most homeowners in Anchorage 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 Anchorage 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 Anchorage County ranked by EPA violation count.
| # | Water System | Population | Violations |
|---|---|---|---|
| 1 | Moa Municipality of Anchorage | 221,351 | 7336 |
| 2 | Girdwood Water System | 2,942 | 7302 |
| 3 | Unified Alaskan Utilities Settlers Bay | 2,733 | 7300 |
| 4 | Ow Dimond Estates Trailer Court | 1,395 | 7300 |
| 5 | Southwood Manor Tc | 1,005 | 7300 |
21 total water systems serve Anchorage County.
All ZIP Codes in Anchorage County
33 ZIP codes tracked in Anchorage County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 99506 | Jber | 95 | A | 0 | — |
| 2 | 99567 | Chugiak | 94 | A | 30 (1 health) | $437K |
| 3 | 99587 | Girdwood | 94 | A | 2 | $672K |
| 4 | 99577 | Eagle River | 89 | A | 6 | $413K |
| 5 | 99501 | Anchorage | 70 | B | 292 (20 health) | $379K |
| 6 | 99502 | Anchorage | 70 | B | 292 (20 health) | $408K |
| 7 | 99503 | Anchorage | 70 | B | 292 (20 health) | $317K |
| 8 | 99510 | Anchorage | 70 | B | 292 (20 health) | — |
| 9 | 99515 | Anchorage | 70 | B | 292 (20 health) | $401K |
| 10 | 99516 | Anchorage | 70 | B | 292 (20 health) | $577K |
| 11 | 99517 | Anchorage | 70 | B | 292 (20 health) | $365K |
| 12 | 99518 | Anchorage | 70 | B | 292 (20 health) | $298K |
| 13 | 99519 | Anchorage | 70 | B | 292 (20 health) | — |
| 14 | 99509 | Anchorage | 66 | C | 292 (20 health) | — |
| 15 | 99511 | Anchorage | 66 | C | 292 (20 health) | — |
| 16 | 99513 | Anchorage | 66 | C | 292 (20 health) | — |
| 17 | 99514 | Anchorage | 66 | C | 292 (20 health) | — |
| 18 | 99520 | Anchorage | 66 | C | 292 (20 health) | — |
| 19 | 99521 | Anchorage | 66 | C | 292 (20 health) | — |
| 20 | 99522 | Anchorage | 66 | C | 292 (20 health) | — |
| 21 | 99523 | Anchorage | 66 | C | 292 (20 health) | — |
| 22 | 99524 | Anchorage | 66 | C | 292 (20 health) | — |
| 23 | 99529 | Anchorage | 66 | C | 292 (20 health) | — |
| 24 | 99530 | Anchorage | 66 | C | 292 (20 health) | — |
| 25 | 99599 | Anchorage | 66 | C | 292 (20 health) | — |
| 26 | 99695 | Anchorage | 66 | C | 292 (20 health) | — |
| 27 | 99504 | Anchorage | 65 | C | 292 (20 health) | $309K |
| 28 | 99507 | Anchorage | 65 | C | 292 (20 health) | $371K |
| 29 | 99508 | Anchorage | 65 | C | 292 (20 health) | $309K |
| 30 | 99694 | Houston | 60 | C | 0 | $235K |
| 31 | 99605 | Hope | 50 | D | 0 | — |
| 32 | 99631 | Moose Pass | 50 | D | 0 | — |
| 33 | 99725 | Ester | 50 | D | 0 | $209K |
Recommended Buyer Guides for Anchorage County
Filtered against federal data, fitted to local risks.
- Best Under-Sink Reverse Osmosis Systems — Multi-contaminant removal at the kitchen tap
Deep Dive Reports
Detailed analysis for Anchorage County, Alaska
Overview
Anchorage County in Alaska covers 33 ZIP codes with an average Home Safety Score of C (69/100).
28 of 33 ZIP codes have recorded EPA violations. 501 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.