COUNTY REPORT ID

Bonneville County, Idaho

13 ZIP codes · Avg score 77/100 · Grade B · Updated

ZipCheckup grade for Bonneville County: B.

This ZIP looks solid, with a few items worth a quick check.

Unlike many counties its size, Bonneville County keeps violation rates low - all 13 ZIP codes score at or above the state average for tap water safety, with no systemic concerns flagged in the current data set.

How Bonneville County Compares

Bonneville County77/100
Idaho avg72/100
National avg73/100

How Bonneville County Compares

B
County Grade
77/100
Avg Safety Score
13
ZIP Codes
6
Water Systems

Bonneville County scores 5 points above the Idaho state average (72/100) and 4 points above the national average (73/100).

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

B
County Grade
77
Avg Safety Score
13
ZIP Codes
Best ZIP: 83402 (83/100)
Lowest ZIP: 83401 (71/100)
$353K
Median Home Value
$1,162
Avg Remediation (33% of home value)

ZIP Code Risk Map

Water Quality Map: Bonneville County, Idaho

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: 11.4 (asthma 10.6%, diabetes 9.4%)

Estimated additional annual cost per homeowner: $888, driven primarily by flood

52.2% of homes built before 1978 (lead paint era)

Violation History (2022–2025)

↓ Improving trend

EPA violation counts by year across Bonneville County water systems. Health-based shown in red, total in blue.

2022
5 (5 health)
2023
1 (1 health)
2024
1 (1 health)
2025
1 (1 health)

Peak year: 2022 with 5 violations. Past 5 years: 8 total (8 health-based). Health-based violations are declining versus the prior 2-year window.

Source: EPA SDWIS historical violations. Data may lag 6–12 months for the most recent year.

County Health Indicators vs National Average

Asthma 10.6% (national: 8.9%)
Diabetes 9.4% (national: 10.5%)
Obesity 33.3% (national: 32.4%)

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

Infrastructure Overview

1984
Median Build Year
52.2%
Pre-1978 Housing
35/100
Infrastructure Stress Indicator
15%
ZIPs with High Infrastructure Stress
Moderate
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: $888

Flood $400/yr
Energy Code Gap $315/yr
Wildfire $300/yr

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

Housing Age Distribution

45,959 housing units in Bonneville County

Pre-1940 8%
1940–1959 14%
1960–1979 26%
1980–1999 21%
2000+ 32%

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 Bonneville County

$353K
Median Home Value
$1,162
Est. Remediation Cost
0.3%
of Home Value
Remediation as % of home value low burden

Remediation costs are relatively manageable for most homeowners in Bonneville 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 Bonneville County residents

Asthma 10.6% (US avg: 8.9%)
Diabetes 9.4% (US avg: 11%)
Obesity 33.3% (US avg: 32.4%)

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

Water systems serving Bonneville County

6 community water systems serving Bonneville County.

Systems with the most violations in Bonneville County

3 water systems with recorded EPA violations.

All ZIP Codes in Bonneville County

13 ZIP codes tracked in Bonneville County.

# ZIP Code City Safety Score Grade Violations Home Value
1 83402 Idaho Falls 83 B 1 $301K
2 83404 Idaho Falls 81 B 7 $355K
3 83406 Idaho Falls 72 B 62 (1 health) $351K
4 83401 Idaho Falls 71 B 65 (2 health) $308K
5 83285 Wayan $450K
6 83403 Idaho Falls
7 83405 Idaho Falls
8 83415 Idaho Falls
9 83427 Iona 55 (1 health) $368K
10 83428 Irwin $540K
11 83443 Ririe $154K
12 83449 Swan Valley $551K
13 83454 Ucon $307K

Recommended Buyer Guides for Bonneville County

Designed to find the guide that fits the county, not the other way around - the system reads EPA detections, FEMA hazard layers, and CDC lead-exposure markers, then outputs the categories that resolve those specific risks for households here, with NSF-certified products surfaced when the matching contaminant appears in the local monitoring data.

Overview

Bonneville County in Idaho covers 13 tracked ZIP records with an average Home Safety Score of B (77/100) across 4 scored records.

5 of 5 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. 2 health-based violations appear in the available health breakdown.

← Back to Idaho Home Safety Profile

Data Sources

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

Frequently Asked Questions

Is water safe in Bonneville County?
Bonneville County receives a grade of B, indicating generally safe tap water across its 13 ZIP codes.
How many water systems serve Bonneville County?
Bonneville County is served by 6 public water systems that supply drinking water to residents across 13 ZIP codes.
What is the biggest environmental risk in Bonneville County?
The primary environmental risk factor in Bonneville County is flood. This contributes to an estimated additional annual cost of $888 per homeowner.
How old are homes in Bonneville County?
The median home build year in Bonneville County is 1984. 52.2% of homes were built before 1978, which means they may contain lead-based paint and older plumbing materials.
How does Bonneville County compare to Idaho?
Bonneville County has an average Home Safety Score of 77/100 under model 4.0.0, which is above the Idaho state average of 72/100.

How to cite this page

APA ZipCheckup. (2026). Bonneville County, ID: HSS 77/100; PFAS Found in Water. https://zipcheckup.com/county/idaho/bonneville/
BibTeX
@misc{zipcheckup-county-idaho-bonneville,
  author = {{ZipCheckup}},
  title  = {{Bonneville County, ID: HSS 77/100; PFAS Found in Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/idaho/bonneville/}
}

Page version: August 2026.

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