Kunia, HI Water Safety: 88/100 (2026)
1 ZIP code · 1 water system · Updated 2026-06-03
Drinking water tracked for Kunia by HI authorities posts above-average scores — the majority of systems are free from health-based exceedances and the city's grade sits above the state median.
How Kunia Compares
Data: EPA SDWIS Last verified: 2026-06-03
Kunia Water: The Quick Version
- Homes built before 1986: 100% — older plumbing may contain lead solder.
- Estimated remediation: $500 per household.
- CDC health risk index: 10.63.
Water Systems Serving Kunia
A single dominant system supplies most of Kunia, HI. That utility controls infrastructure decisions, rate structures, and EPA compliance reporting for most residential addresses served across those 1 tracked system.
Overview
We track water quality and home safety data for 1 ZIP code in Kunia, Hawaii (population ~202), covering 1 community water system serving approximately 650 people region-wide.
No EPA violations recorded across any ZIP codes in Kunia — an excellent indicator of water quality.
Home Safety Score
Average Home Safety Score for Kunia: A (88/100)
The score combines three factors:
| Factor | What It Measures |
|---|---|
| Water Quality | EPA violations and compliance history |
| Lead Levels | 90th percentile lead concentration vs EPA action level |
| Radon Risk | EPA radon zone classification |
Water Sources
Kunia water systems draw from: Groundwater.
Lead & Copper
- Lead data: not yet available for Kunia
- 0 ZIP codes 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 |
|---|---|---|---|
| 96759 | A | Kunia Village | 650 |
All ZIP Codes in Kunia
- 96759 [A]
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- Lead/copper: EPA Lead and Copper Rule sampling data
- Radon: EPA Map of Radon Zones
Updated daily.
CDC Health Data for Kunia
Source: CDC PLACES (County-level estimates). Water contamination can correlate with respiratory and chronic health conditions.
Compared to National Average
Vertical line = national average. ■ Above national · ■ Below national
How Old Is Kunia's Housing Stock?
With 100% 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
When more than half a city's housing predates the 1986 federal ban on lead solder, plumbing-era lead risk becomes a citywide concern rather than an exception. Kunia's median build year of 1979 places it squarely in that category.
Over half of homes in Kunia 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.
Protecting Children from Lead in Kunia
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.
Older stock in Kunia represents 100% of the inventory, and citywide monitoring runs at or above the federal action level — making an in-home read a standard household-level step.
Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.
Deep Dive Reports
Detailed analysis for Kunia, HI