COUNTY REPORT VT

Grand Isle County, Vermont

5 ZIP codes · Home Safety Score unavailable · 0 of 5 tracked ZIP records scored · Updated

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData Last verified:

Unavailable
0 of 5 tracked ZIP records scored
5
ZIP Codes
$381K
Median Home Value
$1,275
Avg Remediation (33% of home value)

ZIP Code Risk Map

Water Quality Map: Grand Isle County, Vermont

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 12.4 (asthma 10.9%, diabetes 9.7%)

Estimated additional annual cost per homeowner: $1,426, driven primarily by flood

57.4% of homes built before 1978 (lead paint era)

County Health Indicators vs National Average

Asthma 10.9% (national: 8.9%)
Diabetes 9.7% (national: 10.5%)
Obesity 30.7% (national: 32.4%)

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

Infrastructure Overview

1986
Median Build Year
57.4%
Pre-1978 Housing
45/100
Infrastructure Stress Indicator
100%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINS infrastructure needs, EPA SDWIS violations, and EPA lead indicators.

Compound Risk Breakdown

Estimated additional annual cost per homeowner: $1,426

Flood $800/yr
Energy Code Gap $486/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

5,264 housing units in Grand Isle County

Pre-1940 19%
1940–1959 8%
1960–1979 21%
1980–1999 29%
2000+ 23%

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 Grand Isle County

$381K
Median Home Value
$1,275
Est. Remediation Cost
0.3%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Grand Isle 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 Grand Isle County residents

Asthma 10.9% (US avg: 8.9%)
Diabetes 9.7% (US avg: 11%)
Obesity 30.7% (US avg: 32.4%)

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

Water systems serving Grand Isle County

5 community water systems serving Grand Isle County.

Systems with the most violations in Grand Isle County

3 water systems with recorded EPA violations.

All ZIP Codes in Grand Isle County

5 ZIP codes tracked in Grand Isle County.

# ZIP Code City Safety Score Grade Violations Home Value
1 05440 Alburgh 23 $240K
2 05458 Grand Isle 7 $381K
3 05463 Isle La Motte 23 $252K
4 05474 North Hero 23 $404K
5 05486 South Hero 7 $508K

Recommended Buyer Guides for Grand Isle County

Eight risk categories drive the selection - PFAS exceedance, lead above EPA action level, pre-1978 housing share, EPA Radon Zone 1, flood-top-risk, wildfire-top-risk, multi-contaminant load, and a baseline fallback - and each category maps to a specific buyer-guide track that surfaces when the county data hits its threshold for that hazard signal.

Overview

Grand Isle County in Vermont covers 5 tracked ZIP records. No Home Safety Score is published because the required model evidence is incomplete for every tracked record; missing evidence is not treated as zero.

5 of 5 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.

← Back to Vermont Home Safety Profile

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

Frequently Asked Questions

How many water systems serve Grand Isle County?
Grand Isle County is served by 5 public water systems that supply drinking water to residents across 5 ZIP codes.
What is the biggest environmental risk in Grand Isle County?
The primary environmental risk factor in Grand Isle County is flood. This contributes to an estimated additional annual cost of $1,426 per homeowner.
How old are homes in Grand Isle County?
The median home build year in Grand Isle County is 1986. 57.4% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.

How to cite this page

APA ZipCheckup. (2026). Grand Isle County, Vermont Home Safety Profile. https://zipcheckup.com/county/vermont/grand-isle/
BibTeX
@misc{zipcheckup-county-vermont-grand-isle,
  author = {{ZipCheckup}},
  title  = {{Grand Isle County, Vermont Home Safety Profile}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/vermont/grand-isle/}
}

Page version: August 2026.

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