CITY REPORT HI

Kailua Kona, HI: 1 Violation - Home Safety 99/100

2 ZIP codes · 1 water system · Updated

ZipCheckup grade for Kailua Kona: A.

Checked records flag no major concern; missing data is unknown.

Across Kailua Kona, HI, the overall grade falls in the upper range - a summary score, not a measurement taken at any single tap.

How Kailua Kona Compares

Kailua Kona99/100
Hawaii avg100/100
National avg73/100

Data: EPA SDWIS

2
ZIP Codes
1
Water Systems
1
ZIPs Linked to Systems with Violations
A · 99
Avg Safety Score
Zone 3
County Radon Potential (Low)
$731K
Median Home Value

What You Should Know About Kailua Kona Water

  • Water systems mapped to your city have 1 violation on record since 2021.
  • Health risk index (ZipCheckup composite of CDC data): 12.35.

Who Supplies Your Water in Kailua Kona

Federal drinking water data connect ZIP codes in Kailua Kona, HI to a count of 1 system, and the list on this page shows one of them. A listing reflects that link, not proof of which system serves a given street.

Overview

We track home safety data for 2 ZIP codes in Kailua Kona, Hawaii, covering 1 community water system serving approximately 40,805 people. The EPA snapshots used for this build directly map water systems to 1 of 2 ZIP codes.

1 of 1 ZIP code with a reported violation count in the available EPA record (100%) have recorded EPA violations. The available record reports no health-based violations for this measured scope.

Home Safety Score

Average Home Safety Score for Kailua Kona: A (99/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Kailua Kona water systems draw from: Groundwater.

Lead & Copper

  • Average of reported 90th-percentile lead results: reported as 0 mg/L (a reported 0 is not proof of no lead; check the source record for its reporting limit) (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

2 of 2 ZIP records with known zones are in EPA Radon Zone 3.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Top Contaminants

Contaminant Category Violations ZIPs Affected
Lead and Copper Rule Treatment Technique 2 1

Areas with Most Violations

ZIP Code Safety Score Violations Health-Based System
96740 A 1 0 North Kona

All ZIP Codes in Kailua Kona

Data Sources

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

Health Outcomes in Kailua Kona

11%
Asthma (US: 9.8%)
12.5%
Diabetes (US: 10.4%)
15.6%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 11% ↑
Diabetes 12.5% ↑
Mental Health 15.6% ↑

Vertical line = national average. ■ Above national · ■ Below national

Top Contaminants in Kailua Kona Water

Lead and Copper Rule 2 violations
Treatment Technique
Developmental delays in children, kidney damage

Based on EPA violation records. Check your ZIP code report for system-specific contaminant data.

Historical NFIP Claim Context in Kailua Kona

430
Total FEMA Flood Claims
$51,990
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Kailua Kona contains 430 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $51,990. Among ZIP codes with claim records, 100% have an A- or V-family dominant rated zone recorded in those historical claims. This is not a complete current FEMA property-map inventory.

How flooding affects water quality: Flood events can introduce sewage, agricultural runoff, and industrial chemicals into water supplies. Even after floodwaters recede, contamination can persist in wells and aging infrastructure.

Claim count does not establish current property risk. Check the exact address in FEMA's current map and obtain a property-specific insurance quote when relevant.

Source: historical FEMA National Flood Insurance Program (NFIP) claim records. No current FEMA property-map designation is asserted.

Frequently Asked Questions

What does the Home Safety Score mean for Kailua Kona, HI?
Kailua Kona has an average Home Safety Score of 99/100 (Grade A) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. 1 violation appears in EPA records for water systems mapped to these ZIP codes. Check individual ZIP code reports for component details.
How many violations are on record for water systems serving Kailua Kona?
EPA records list 1 EPA violation for Kailua Kona water systems. These water-system violations are shown for 2 mapped ZIP codes.
How does Kailua Kona compare to Hawaii average?
Kailua Kona has an average Home Safety Score of 99/100, which is below the Hawaii state average of 100/100 for the same model series.
How many water systems serve Kailua Kona?
Our records map 1 water system to 2 ZIP codes in Kailua Kona. The related population figure in our data is approximately 40,805 people; it is not a count of people served citywide.
Home → Cities → Hawaii → Kailua Kona, HI

How to cite this page

APA ZipCheckup. (2026). Kailua Kona, HI: 1 Violation - Home Safety 99/100. https://zipcheckup.com/cities/hi/kailua-kona/
BibTeX
@misc{zipcheckup-cities-hi-kailua-kona,
  author = {{ZipCheckup}},
  title  = {{Kailua Kona, HI: 1 Violation - Home Safety 99/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/hi/kailua-kona/}
}

Page version: October 2026.

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