CITY REPORT HI

Kailua, HI Home Safety: Home Safety 100/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for Kailua: A.

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

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

How Kailua Compares

Kailua100/100
Hawaii avg100/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs Linked to Systems with Violations
A · 100
Avg Safety Score
Zone 3
County Radon Potential (Low)
$1.2M
Median Home Value
$500
Est. Remediation (0.0% of home value)

Key Facts for Kailua Residents

  • Homes built before 1986: 73% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.
  • Health risk index (ZipCheckup composite of CDC data): 10.63.

Kailua's Water Providers

Kailua, HI: one listed entry, 1 linked overall.

Overview

We track home safety data for 1 ZIP code in Kailua, Hawaii (population ~50,985), covering 1 community water system serving approximately 631,389 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Home Safety Score

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

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 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

1 of 1 ZIP records with known zones is 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.

Areas with No Violations

ZIP Code Safety Score System Population
96734 A Hnl-windward-pearl Harbor 631,389

All ZIP Codes in Kailua

Data Sources

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

Kailua Community Health Snapshot

9.5%
Asthma (US: 9.8%)
12.4%
Diabetes (US: 10.4%)
14.2%
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 9.5% ↓
Diabetes 12.4% ↑
Mental Health 14.2% ↓

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

Kailua Infrastructure Age

1960
Median Build Year
73%
Built Before 1986
51%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 73% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Viewed through the lens of construction era, Kailua has a median build year of 1960; houses completed ahead of 1986 can hold lead-bearing solder or fittings.

1960
Median Year Built
73%
Pre-1986 (lead solder era; lead paint banned 1978)
51%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (51%) 1970–1986 (22%) Post-1986 (27%)

Over half of homes in Kailua were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

How Remediation Costs Compare in Kailua

In Kailua, estimated remediation comes to 1% or less of the median home value.

Median Home Value
$1.2M
Est. Remediation
$500
Remediation as % of home value 0.0%

Estimated remediation costs in Kailua can be compared with local home values. The $300–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 71% above the Hawaii average.

Kailua: Lead Risk & Vulnerable Populations

73%
Homes Built Before 1986

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

Kailua: NFIP Claim Records and Water-Quality Context

368
Total FEMA Flood Claims
$24,900
Avg Reported Sum With Payment Data
0%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Kailua contains 368 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $24,900. Among ZIP codes with claim records, 0% 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. The $500 remediation estimate shown here excludes flood insurance and is not derived from NFIP claim count.

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, HI?
Kailua has an average Home Safety Score of 100/100 (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. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.
How does Kailua compare to Hawaii average?
Kailua has an average Home Safety Score of 100/100, which is at or above the Hawaii state average of 100/100 for the same model series.
How many water systems serve Kailua?
Our records map 1 water system to 1 ZIP code in Kailua. The related population figure in our data is approximately 50,985 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Kailua?
Estimated remediation cost per household in Kailua: $500; modeled range $300 to $800. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

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

Page version: October 2026.

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