COUNTY REPORT AK

Skagway County, Alaska

1 ZIP code · Avg score 87/100 · Grade A · Updated 2026-06-03

Skagway County — 1 ZIP code, above-average safety grade.

How Skagway County Compares

Skagway County87/100
Alaska avg75/100
National avg68/100

How Skagway County Compares

A
County Grade
87/100
Avg Safety Score
1
ZIP Codes
1
Water Systems

Skagway County scores 12 points above the Alaska state average (75/100) and 19 points above the national average (68/100).

Data: EPA SDWIS Last verified: 2026-06-03

A
County Grade
87
Avg Safety Score
1
ZIP Codes
Only ZIP: 99840
$430K
Median Home Value

Key Risk Factors

Health risk index: 12.4 (asthma 10%, diabetes 9.1%)

Estimated additional annual cost per homeowner: $900, driven primarily by sea_level

Infrastructure: 0.51% avg pipe failure probability, 100% of ZIPs at high risk

54% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 10% (national: 8.9%)
Diabetes 9.1% (national: 10.5%)
Obesity 36.2% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1985
Median Build Year
54%
Pre-1978 Housing
51%
Pipe Failure Probability
100%
ZIPs at High Infra Risk
Low
Lead Pipe Risk

Sources: Census ACS (housing age), EPA SDWIS (infrastructure risk model), state bridge inspection data.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $900

Sea Level Rise $400/yr
Energy Code Gap $270/yr
Water / Lead $150/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

631 housing units in Skagway County

Pre-1940 14%
1940–1959 9%
1960–1979 17%
1980–1999 39%
2000+ 20%

Source: U.S. Census Bureau ACS B25034 (Year Structure Built).

Health Outcomes vs National Average

CDC PLACES data for Skagway County residents

Asthma 10% (US avg: 8.9%)
Diabetes 9.1% (US avg: 11%)
Obesity 36.2% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

All ZIP Codes in Skagway County

1 ZIP code tracked in Skagway County.

# ZIP Code City Safety Score Grade Violations Home Value
1 99840 Skagway 87 A 3 $430K

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Overview

Skagway County in Alaska covers 1 ZIP code with an average Home Safety Score of A (87/100).

1 of 1 ZIP code have recorded EPA violations. All violations are monitoring/reporting type.

← Back to Alaska water quality report

Data Sources

Updated daily.

Frequently Asked Questions

Is water safe in Skagway County?
Skagway County receives a grade of A, indicating generally safe tap water across its 1 ZIP codes.
How many water systems serve Skagway County?
Skagway County is served by 1 public water system that supplies drinking water to residents across 1 ZIP codes.
What is the biggest environmental risk in Skagway County?
The primary environmental risk factor in Skagway County is sea_level. This contributes to an estimated additional annual cost of $900 per homeowner.
How old are homes in Skagway County?
The median home build year in Skagway County is 1985. 54% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Skagway County compare to Alaska?
Skagway County has an average water safety score of 87/100, which is above the Alaska state average of 75/100.

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