CITY REPORT HI

Kailua, HI Home Safety: Home Safety 100/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for Kailua: A.

No federal data flags a major home-safety concern for this ZIP.

Although water quality varies across any metro, Kailua's systems collectively post above-average compliance scores for HI - and documented violations are few.

How Kailua Compares

Kailua100/100
Hawaii avg100/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
1
Water Systems
0
ZIPs with Violations
A · 100
Avg Safety Score
Zone 3
Radon Risk (Low)
$1.2M
Median Home Value
$1,700
Est. Remediation (0.1% of home value)

Key Facts for Kailua Residents

  • Homes built before 1986: 73% - older plumbing may contain lead solder.
  • Estimated remediation: $1,700 per household.
  • CDC health risk index: 10.63.

Kailua's Water Providers

Most residential addresses in Kailua, HI are served by a single water utility - the dominant system among the 1 provider tracked in federal data.

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 lead level (90th percentile): 0.0000 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

Dominant radon zone: Zone 3 (Low Risk)

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). Water contamination can correlate with respiratory and chronic health conditions.

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
28%
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. The EPA banned lead solder in 1986, but many older homes retain original plumbing.

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

Housing Age Profile

Kailua's housing stock is predominantly older, with a median build year of 1960 that reflects decades of construction before federal plumbing standards were tightened. The 1986 ban on lead solder and the pre-1970 era of lead service lines are both relevant benchmarks here - a significant share of the residential inventory predates one or both of those cutoffs, creating an elevated baseline for plumbing-related lead risk that aggregate water quality data may not fully reflect at the household level.

1960
Median Year Built
73%
Pre-1986 (Lead Paint Risk)
28%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (28%) 1970–1986 (45%) Post-1986 (27%)

Over half of homes in Kailua were built before 1986, when lead solder was banned. 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

Setting Kailua remediation figures against its property market, the resulting ratio sits comfortably in the low tier - a classification that reflects the kind of household financial position where most homeowners can identify documented issues, schedule the work, and absorb the cost without it registering as a significant budget disruption.

Median Home Value
$1.2M
Est. Remediation
$1,700
Remediation as % of home value 0.1%

Remediation costs in Kailua are relatively low compared to home values. The $1,100–$2,600 estimated range is a small fraction of median property value. 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 there is no safe level of lead exposure for children. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

73% of Kailua housing dates to the pre-rule era, alongside aggregate readings hovering at the federal action mark - household-level confirmation through a draw-test kit fits the local picture.

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 <strong>$1,700</strong> 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 model 4.0.0. The score combines EPA SDWIS identity plus accepted ECHO SDWA lifecycle-based water compliance, the PFAS MCL screen, EPA radon zone, and annual EPA AQI, and is published only when all required domains are observed. 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 above the Hawaii state average of 100/100 for the same model series.
How many water systems serve Kailua?
Kailua is served by 1 public water system across 1 ZIP code, serving approximately 50,985 people.
How much does it cost to fix water issues in Kailua?
Estimated remediation costs in Kailua average $1,700 per household, ranging from $1,100 to $2,600. Costs include filtration, pipe replacement, radon mitigation, and flood protection.
HomeCitiesHawaii → Kailua, HI

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: August 2026.

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