COUNTY REPORT HI

Maui County, Hawaii

17 ZIP codes · Avg score 100/100 · Grade A

ZipCheckup grade for Maui County: A.

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

Maui County earns an A or B, the top two of ZipCheckup's five grades, based on the average composite Home Safety Score of its scored ZIP codes. That composite can draw on drinking water records, radon zones, PFAS monitoring and air quality data, so a strong grade summarizes several sources and is not a reading from anyone's tap. Scores also vary from one ZIP code to another, and the 17 ZIP reports listed for the county show where each one stands.

How Maui County Compares

Maui County100/100
Hawaii avg100/100
National avg73/100

How Maui County Compares

A
County Grade
100/100
Avg Safety Score
17
ZIP Codes
15
Water Systems

Data: ZipCheckup Home Safety Score model 4.0.0; EPA SDWIS, UCMR 5, EPA radon zones, EPA AirData

A
County Grade
100
Avg Safety Score
17
ZIP Codes
Best ZIP: 96708 (100/100)
Lowest ZIP: 96729 (97/100)
$776K
Median Home Value

ZIP Code Risk Map

Water Quality Map: Maui County, Hawaii

Each dot represents a ZIP code. Color indicates water quality grade. Tap a dot for details.

A B C D F

Key Risk Factors

Health risk index: 11.6 (asthma 10.3%, diabetes 12.2%)

Modeled additional annual cost estimate per homeowner: $1,472, largest modeled factor: Flood

41% of homes built before 1980 (lead paint was banned for residential use in 1978)

County Health Indicators vs National Average

Asthma 10.3% (national: 8.9%)
Diabetes 12.2% (national: 10.5%)
Obesity 26.2% (national: 32.4%)

Black markers indicate national averages. Source: CDC PLACES, Census ACS.

Infrastructure Overview

1982
Median Build Year
41%
Pre-1980 Housing
41/100
Infrastructure Stress Indicator
46%
ZIPs with High Infrastructure Stress
Low
Lead Pipe Risk

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: $1,472

Flood $1,015/yr
Sea Level Rise $400/yr
Energy Code Gap $291/yr

Bar widths proportional to share of total annual risk cost. Source: compound risk model (FEMA, EPA, USGS).

Housing Age Distribution

65,142 housing units in Maui County

Pre-1940 3%
1940–1959 6%
1960–1979 32%
1980–1999 36%
2000+ 23%

Source: U.S. Census Bureau ACS B25034 (Year Structure Built).

Health Outcomes vs National Average

CDC PLACES data for Maui County residents

Asthma 10.3% (US avg: 8.9%)
Diabetes 12.2% (US avg: 11%)
Obesity 26.2% (US avg: 32.4%)

Black markers = national averages. Red = above national avg. Green = below. Source: CDC PLACES, Census ACS.

Water systems mapped to Maui County ZIP codes

8 community water systems mapped to Maui County ZIP codes; EPA may list more systems serving the county.

Show all 8 water systems

15 water systems mapped to Maui County ZIP codes in our data; EPA may list more systems serving the county.

Systems with the most violations in Maui County

2 water systems with violations in EPA records.

  • Lanai City
    Serves ~3,200 people 11 violations
  • Kipu
    Serves ~80 people 2 violations
    A

All ZIP Codes in Maui County

17 ZIP codes tracked in Maui County.

# ZIP Code City Safety Score Grade Violations Home Value
1 96708 Haiku 100 A 0 $1033K
2 96732 Kahului 100 A 0 $833K
3 96748 Kaunakakai 100 A 0 $356K
4 96753 Kihei 100 A 0 $958K
5 96761 Lahaina 100 A 0 $906K
6 96779 Paia 100 A 0 $946K
7 96790 Kula 100 A 0 $1040K
8 96793 Wailuku 100 A 0 $776K
9 96729 Hoolehua 97 A 2 $199K
10 96713 Hana — — $607K
11 96733 Kahului — — —
12 96757 Kualapuu — — 2 $419K
13 96763 Lanai City — — 11 $559K
14 96767 Lahaina — — —
15 96770 Maunaloa — — 2 $362K
16 96784 Puunene — — —
17 96788 Pukalani — — —

Recommended Buyer Guides for Maui County

The mix of guides changes from county to county.

Overview

Maui County in Hawaii covers 17 tracked ZIP records with an average Home Safety Score of A (100/100) across 9 scored records.

4 of 12 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

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

Frequently Asked Questions

Is water safe in Maui County?
Maui County receives an average Home Safety grade of A from its scored ZIP records (17 ZIP codes tracked); this is a composite index, not a tap-water test.
How many water systems serve Maui County?
We map 15 public water systems to 17 ZIP codes in our data for Maui County. EPA may list more systems serving the county, so this is not a full count.
What is the biggest environmental risk in Maui County?
In ZipCheckup's cost model, the factor with the largest estimated average annual cost in Maui County is flood. Across all modeled risk factors, the estimated average additional annual cost is $1,472 per homeowner; actual costs vary by home.
How old are homes in Maui County?
The median home build year in Maui County is 1982. 41% of homes were built before 1980; homes built before 1978 may contain lead-based paint, and older homes may have older plumbing materials.
How does Maui County compare to Hawaii?
Maui County has an average Home Safety Score of 100/100 under model 4.0.0, which is at or above the Hawaii state average of 100/100.

How to cite this page

APA ZipCheckup. (2026). Maui County, HI: HSS 100/100; 13 Violations. https://zipcheckup.com/county/hawaii/maui/
BibTeX
@misc{zipcheckup-county-hawaii-maui,
  author = {{ZipCheckup}},
  title  = {{Maui County, HI: HSS 100/100; 13 Violations}},
  year   = {2026},
  url    = {https://zipcheckup.com/county/hawaii/maui/}
}

Page version: October 2026.

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