Natural Disasters in Mililani Town, HI
Hazard risk, disaster history, and FEMA data
Natural Hazard Risk
Source: FEMA National Risk IndexRisk Score
98.8
Relatively High
Expected Annual Loss
99.0
Score (0-100)
Social Vulnerability
25.9
Score (0-100)
Community Resilience
62.6
Score (0-100)
Scores range from 0 (lowest risk) to 100 (highest risk) relative to all U.S. communities. Data from FEMA National Risk Index.
Disaster History & Federal Spending
Source: FEMATotal Declarations
22
Individual Assistance
$2.1M
Most Common Type
Flood
5 declarations
| Disaster | Type | Date | PA $ | IA $ |
|---|---|---|---|---|
| Kunia Road Fire → | Fire | Aug 2025 | — | — |
| Severe Storms, Flooding, and Landslides → | Severe Storm | Feb 2022 | — | — |
| Hurricane Douglas → | Hurricane | Jul 2020 | — | — |
| Covid-19 Pandemic → | Biological | Apr 2020 | — | $882K |
| Covid-19 → | Biological | Mar 2020 | — | — |
| Tropical Storm Olivia → | Hurricane | Sep 2018 | — | — |
| Hurricane Lane → | Hurricane | Aug 2018 | — | — |
| Severe Storms, Flooding, Landslides, and… → | Flood | May 2018 | — | — |
| Tsunami Waves → | Tsunami | Apr 2011 | — | — |
| Severe Storms and Flooding → | Flood | Jan 2009 | — | $1.2M |
| Waialua Fire → | Fire | Aug 2007 | — | — |
| Earthquake → | Earthquake | Oct 2006 | — | — |
| Severe Storms, Flooding, Landslides, and… → | Severe Storm | May 2006 | — | $17K |
| Waikele Fire → | Fire | Aug 2005 | — | — |
| Nanakuli Brush Fire → | Fire | Aug 2005 | — | — |
| Severe Storms and Flash Flooding → | Severe Storm | Feb 2005 | — | — |
| Prolonged and Heavy Rains, High Surf,flo… → | Flood | Nov 1996 | — | — |
| Severe Storms and Flooding → | Severe Storm | Nov 1996 | — | — |
| Hurricane Iniki → | Hurricane | Sep 1992 | — | — |
| Severe Storms, Mudslides & Flooding → | Flood | Jan 1988 | — | — |
Showing 20 of 24 disasters
PA = FEMA Public Assistance (infrastructure recovery). IA = Individual Assistance (homeowner/renter aid).
Flood Insurance (NFIP)
Source: FEMA NFIPTotal Claims
2,797
Total Claims Paid
$57,687,573
Avg Claim Payout
$20,625
County-level NFIP data from FEMA National Flood Insurance Program.
Hazard Mitigation
Source: FEMA Hazard Mitigation AssistanceMitigation Projects
29
Federal Funding
$9,675,203
Properties Protected
8
Avg Benefit-Cost Ratio
2.83
BCR
Top Mitigation Project Types
| Project Type | Projects | Federal $ |
|---|---|---|
| 205.8: Retrofitting Public Structures - Wind | 7 | $4,518,042 |
| 91.3: Local Multihazard Mitigation Plan - UPDATE | 3 | $340,894 |
| 600.1: Warning Systems (as a Component of a Planned, Adopted, and Exercised Risk Reduction Plan) | 3 | $332,237 |
| 95.2: Planning Related Activities | 2 | $355,227 |
| 601.2: Generators - Regular | 2 | $2,736,819 |
Federally funded projects to reduce future disaster risk. Only includes completed or obligated projects.
Mililani Town has a relatively high overall natural hazard risk rating according to FEMA's National Risk Index. The top hazard risks are lightning, landslide, wildfire. The area has had 22 federal disaster declarations. The most common disaster type is flood (5 declarations). 2,797 flood insurance claims have been filed in the area. $2,140,665 has been distributed in individual assistance to disaster-affected residents. 29 hazard mitigation projects have been funded to reduce future risk.