CITY REPORT HI

Waianae, HI Home Safety: Home Safety 100/100

1 ZIP code · 1 water system · Updated

ZipCheckup grade for Waianae: A.

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

In the dataset behind this page, Waianae, HI receives one of the two highest grades; read the compliance history system by system for details.

How Waianae Compares

Waianae100/100
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)
$551K
Median Home Value
$500
Est. Remediation (0.1% of home value)

What You Should Know About Waianae Water

  • Homes built before 1986: 66% - older plumbing may contain lead solder.
  • Estimated remediation: $500 per household.
  • Health risk index (ZipCheckup composite of CDC data): 10.63.

Who Supplies Your Water in Waianae

Just one provider appears in the list below for Waianae, HI, among 1 on the federal list. A listing shows which system is tied to the area, not which one serves a particular street; the water bill or the utility itself confirms that for a given address.

Overview

We track home safety data for 1 ZIP code in Waianae, Hawaii (population ~49,879), covering 1 community water system serving approximately 217,479 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 Waianae: 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

Waianae 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
96792 A Waipahu-ewa-waianae 217,479

All ZIP Codes in Waianae

Data Sources

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

Health Outcomes in Waianae

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

Housing & Infrastructure in Waianae

1972
Median Build Year
66%
Built Before 1986
24%
Built Before 1970
Copper
Likely Pipe Material

With 66% 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

Lead can reach tap water from service lines, solder and brass fittings inside a building, which is why housing age draws attention in Waianae, where the median build year is 1972.

1972
Median Year Built
66%
Pre-1986 (lead solder era; lead paint banned 1978)
24%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (24%) 1970–1986 (42%) Post-1986 (34%)

Over half of homes in Waianae 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.

Cost Context: What Remediation Means for Waianae Homeowners

Estimated remediation for Waianae is a small fraction of median property value - one percent or less - though the ratio does not describe any single household.

Median Home Value
$551,400
Est. Remediation
$500
Remediation as % of home value 0.1%

Estimated remediation costs in Waianae 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 24% below the Hawaii average.

Lead Exposure Risk for Children in Waianae

66%
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.

Historical NFIP Claim Context in Waianae

235
Total FEMA Flood Claims
$37,143
Avg Reported Sum With Payment Data
100%
A/V Share of Claim-Record ZIPs

Historical NFIP data for Waianae contains 235 flood insurance claims. Among claims with payment data, the average reported building, contents, and ICC component sum is $37,143. 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. 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 Waianae, HI?
Waianae 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 Waianae compare to Hawaii average?
Waianae 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 Waianae?
Our records map 1 water system to 1 ZIP code in Waianae. The related population figure in our data is approximately 49,879 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Waianae?
Estimated remediation cost per household in Waianae: $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). Waianae, HI Home Safety: Home Safety 100/100. https://zipcheckup.com/cities/hi/waianae/
BibTeX
@misc{zipcheckup-cities-hi-waianae,
  author = {{ZipCheckup}},
  title  = {{Waianae, HI Home Safety: Home Safety 100/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/hi/waianae/}
}

Page version: October 2026.

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