Honolulu County, Hawaii
70 ZIP codes · Avg score 100/100 · Grade A
ZipCheckup grade for Honolulu County: A.
Checked records flag no major concern; missing data is unknown.
Residents of Honolulu County can read the A-B grade as a starting point and then open their own ZIP report, one of 70 on this site.
How Honolulu County Compares
How Honolulu County Compares
Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData
ZIP Code Risk Map
Water Quality Map: Honolulu County, Hawaii
Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.
Key Risk Factors
Health risk index: 10.6 (asthma 9.5%, diabetes 12.4%)
Modeled additional annual cost estimate per homeowner: $1,052, largest modeled factor: Flood
County Health Indicators vs National Average
Black markers indicate national averages. Source: CDC PLACES, Census ACS.
Infrastructure Overview
Modeled area-level indicator, not a failure probability. Sources: Census ACS housing age, EPA DWINSA infrastructure needs, EPA SDWIS violations, and EPA lead indicators.
Compound Risk Breakdown
Estimated additional annual cost per homeowner: $1,052
Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).
Water Safety Affordability
How much it costs to fix water issues relative to home values in Honolulu County
Modeled remediation costs in Honolulu County can be compared with the median property value; actual costs vary by property.
Remediation includes water filtration, lead abatement, radon mitigation, and flood protection where applicable. Source: Census ACS, EPA SDWIS.
Health Outcomes vs National Average
CDC PLACES data for Honolulu County residents
Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.
Water systems mapped to Honolulu County ZIP codes
8 community water systems mapped to Honolulu County ZIP codes; EPA may list more systems serving the county.
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Show all 8 water systems
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24 water systems mapped to Honolulu County ZIP codes in our data; EPA may list more systems serving the county.
Systems with the most violations in Honolulu County
1 water system with violations in EPA records.
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All ZIP Codes in Honolulu County
70 ZIP codes tracked in Honolulu County.
| # | ZIP Code | City | Safety Score | Grade | Violations | Home Value |
|---|---|---|---|---|---|---|
| 1 | 96701 | Aiea | 100 | A | 0 | $913K |
| 2 | 96706 | Ewa Beach | 100 | A | 0 | $797K |
| 3 | 96707 | Kapolei | 100 | A | 0 | $772K |
| 4 | 96712 | Haleiwa | 100 | A | 0 | $1264K |
| 5 | 96717 | Hauula | 100 | A | 0 | $874K |
| 6 | 96727 | Honokaa | 100 | A | 0 | $560K |
| 7 | 96734 | Kailua | 100 | A | 0 | $1246K |
| 8 | 96744 | Kaneohe | 100 | A | 0 | $1001K |
| 9 | 96762 | Laie | 100 | A | 0 | $962K |
| 10 | 96768 | Makawao | 100 | A | 0 | $905K |
| 11 | 96786 | Wahiawa | 100 | A | 0 | $724K |
| 12 | 96789 | Mililani | 100 | A | 0 | $871K |
| 13 | 96791 | Waialua | 100 | A | 0 | $932K |
| 14 | 96792 | Waianae | 100 | A | 0 | $551K |
| 15 | 96795 | Waimanalo | 100 | A | 0 | $747K |
| 16 | 96797 | Waipahu | 100 | A | 0 | $799K |
| 17 | 96813 | Honolulu | 100 | A | 0 | $804K |
| 18 | 96814 | Honolulu | 100 | A | 0 | $707K |
| 19 | 96815 | Honolulu | 100 | A | 0 | $628K |
| 20 | 96816 | Honolulu | 100 | A | 0 | $1121K |
| 21 | 96817 | Honolulu | 100 | A | 0 | $930K |
| 22 | 96818 | Honolulu | 100 | A | 0 | $653K |
| 23 | 96819 | Honolulu | 100 | A | 0 | $964K |
| 24 | 96821 | Honolulu | 100 | A | 0 | $1458K |
| 25 | 96822 | Honolulu | 100 | A | 0 | $985K |
| 26 | 96825 | Honolulu | 100 | A | 0 | $1068K |
| 27 | 96826 | Honolulu | 100 | A | 0 | $485K |
| 28 | 96857 | Schofield Barracks | 100 | A | 0 | — |
| 29 | 96863 | M C B H Kaneohe Bay | 100 | A | 0 | — |
| 30 | 96782 | Pearl City | 99 | A | 1 | $846K |
| 31 | 96709 | Kapolei | — | — | — | |
| 32 | 96730 | Kaaawa | — | — | $982K | |
| 33 | 96731 | Kahuku | — | — | 0 | $813K |
| 34 | 96759 | Kunia | — | — | — | |
| 35 | 96801 | Honolulu | — | — | — | |
| 36 | 96802 | Honolulu | — | — | — | |
| 37 | 96803 | Honolulu | — | — | — | |
| 38 | 96804 | Honolulu | — | — | — | |
| 39 | 96805 | Honolulu | — | — | — | |
| 40 | 96806 | Honolulu | — | — | — | |
| 41 | 96807 | Honolulu | — | — | — | |
| 42 | 96808 | Honolulu | — | — | — | |
| 43 | 96809 | Honolulu | — | — | — | |
| 44 | 96810 | Honolulu | — | — | — | |
| 45 | 96811 | Honolulu | — | — | — | |
| 46 | 96812 | Honolulu | — | — | — | |
| 47 | 96820 | Honolulu | — | — | — | |
| 48 | 96823 | Honolulu | — | — | — | |
| 49 | 96824 | Honolulu | — | — | — | |
| 50 | 96828 | Honolulu | — | — | — | |
| 51 | 96830 | Honolulu | — | — | — | |
| 52 | 96836 | Honolulu | — | — | — | |
| 53 | 96837 | Honolulu | — | — | — | |
| 54 | 96838 | Honolulu | — | — | — | |
| 55 | 96839 | Honolulu | — | — | — | |
| 56 | 96840 | Honolulu | — | — | — | |
| 57 | 96841 | Honolulu | — | — | — | |
| 58 | 96843 | Honolulu | — | — | — | |
| 59 | 96844 | Honolulu | — | — | — | |
| 60 | 96846 | Honolulu | — | — | — | |
| 61 | 96847 | Honolulu | — | — | — | |
| 62 | 96848 | Honolulu | — | — | 0 | — |
| 63 | 96849 | Honolulu | — | — | — | |
| 64 | 96850 | Honolulu | — | — | — | |
| 65 | 96853 | J B P H H | — | — | — | |
| 66 | 96854 | Wheeler Army Airfield | — | — | — | |
| 67 | 96858 | Fort Shafter | — | — | — | |
| 68 | 96859 | Tripler Army Medical Center | — | — | 0 | — |
| 69 | 96860 | J B P H H | — | — | 0 | — |
| 70 | 96861 | Camp H M Smith | — | — | — |
Recommended Buyer Guides for Honolulu County
Nothing on this list means a problem exists in your own home: the matches are drawn from county- and ZIP-level records, so a guide shows up because of an area signal, and only testing at your tap describes a specific household.
- Best Sump Pumps — Flood is the top compound risk factor
- Best Mold Test Kits — Flood-driven moisture and mold risk
Deep Dive Reports
Detailed analysis for Honolulu County, Hawaii
Overview
Honolulu County in Hawaii covers 70 tracked ZIP records with an average Home Safety Score of A (100/100) across 30 scored records.
1 of 34 ZIP codes with a reported violation count in the available EPA record have recorded EPA violations. The available record reports no health-based violations for this measured scope.
← Back to Hawaii Home Safety Profile
Data Sources
- Water quality: EPA Safe Drinking Water Information System (SDWIS)
- PFAS screening: EPA UCMR 5
- Radon zones: EPA Map of Radon Zones
- Air quality: EPA AirData annual AQI
- Home values: U.S. Census Bureau ACS (median estimates by ZCTA)
Reporting periods vary by source. Missing data is shown as unavailable, not as zero.