Waipahu, HI GIS Map
Waipahu is a city in Honolulu County, Hawaii, with a population of about 38,216. The map below shows its location, boundary and surrounding roads, with federal GIS layers you can turn on for the area.
- County
- Honolulu County
- Population
- 38,216
- Elevation
- 63 ft
- Coordinates
- 21.3867, -158.0092
- ZIP code
- 96797
- Land area
- 2.7 sq mi
- Time zone
- Pacific/Honolulu
About Waipahu, HI
Waipahu is a former sugarcane plantation town and now census-designated place (CDP) in the ʻEwa District on the island of Oʻahu in the City & County of Honolulu, Hawaiʻi, United States. As of the 2020 census, the CDP population was 43,485. The U.S. postal code for Waipahu is 96797.
Source: Wikipedia (CC BY-SA 4.0)
Cities Near Waipahu
- Pearl City, HI2 mi
- Mililani Town, HI5 mi
- Kapolei, HI5 mi
- Aiea, HI5 mi
- Ewa Beach, HI5 mi
- Makakilo, HI5 mi
- Honolulu, HI11 mi
- Waianae, HI12 mi
Other Cities in Honolulu County
GIS Data for Waipahu, HI
The Waipahu map loads live federal GIS layers in your browser, so you can check flood zones, terrain, land cover and district boundaries for any address in Waipahu without a separate GIS login. Everything below is drawn from public U.S. government data.
Layers you can turn on
FEMA flood zones
National Flood Hazard Layer — flood insurance rate map zones.
Elevation contours and hillshade
USGS 3DEP terrain, so you can read slope and relief.
Land cover
NLCD land cover classes — forest, developed, wetland, water.
School districts
Census TIGER unified and elementary school district boundaries.
ZIP code and county boundaries
Census TIGER ZCTA and county boundary lines.
Map tools
Measure distance and area
Draw a line or polygon to get length in miles or area in acres.
Sketch and annotate
Add points, lines and shapes on top of the map.
Inspect any point
Click the map to read coordinates, elevation and the layers under your cursor.
Download the map
Save the current view as a PNG image.
Waipahu Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
40,482
Households
9,282
Median household income
$103,895
Median age
40.2 years
Median home value
$868,600
Median gross rent
$1,658/mo
Owner-occupied homes
59.7%
Bachelor's degree or higher
20.1%
Below poverty level
12%
Land area
2.7 sq mi
Population density
15,117 / sq mi
County
ZIP codes in Waipahu
Photos of Waipahu
Hover over a photo to see it larger. Tap on mobile.
Photos from Wikimedia Commons, taken in or near Waipahu. Credits and licenses are shown in the larger view.
Federal Buildings & Leases in Waipahu
GSA-managed federal properties in and around Waipahu.
| Property | Address | Status | Sq ft | Lease ends |
|---|---|---|---|---|
| Waipahu Medical Center | 94-307 Farrington Hwy A06, 96797 | Leased | 1,820 | Jan 2029 |
Source: U.S. GSA Inventory of Owned and Leased Properties (data.gov), September 2026.
Soils of Waipahu
General soil map unit at the city center: Waipahu-Mamala-Ewa
Soil Properties
- Drainage class
- Well drained
- Hydrologic soil group
- D (very slow infiltration, high runoff)
- Available water storage (0–150 cm)
- 10.3 cm
- Typical slope
- 6%
- Flooding frequency
- Rare
- Min. depth to bedrock
- 36 cm
Soil Components
- Mamala45%
Aridisols · Lithic Haplocambids
- Ewa31%
Mollisols · Aridic Haplustolls
- Waipahu13%
Mollisols · Torrertic Haplustolls
- Ewa11%
Mollisols · Aridic Haplustolls
Source: USDA NRCS U.S. General Soil Map (STATSGO2). General soil map data (1:250,000 scale) is not suitable for site-specific decisions.
Climate of Waipahu
30-year averages (1991–2020) from the Ewa Beachgs 702.2, Hi weather station, elevation 5 ft, 5 miles from the city center.
Warmest month
Aug · avg high 87°F
Coldest month
Jan · avg low 62°F
Annual precipitation
17.1 in
Average Monthly Temperatures (°F)
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 80 | 80 | 80 | 82 | 84 | 86 | 86 | 87 | 87 | 86 | 84 | 81 |
| Avg low °F | 62 | 63 | 64 | 66 | 67 | 69 | 71 | 71 | 70 | 69 | 67 | 65 |
| Precip. in | 1.84 | 1.71 | 2.72 | 0.80 | 1.02 | 0.39 | 0.49 | 0.84 | 0.76 | 1.72 | 2.21 | 2.56 |
Source: NOAA NCEI U.S. Climate Normals, 1991–2020. Conditions at the station may differ from other parts of the city.
Natural Hazard Risk in Waipahu
FEMA National Risk Index ratings for Honolulu County, compared with all U.S. counties.
Overall risk
Score 98.8 of 100
Expected annual loss
Buildings, population & agriculture
Social vulnerability
Susceptibility to hazard impacts
Community resilience
Ability to prepare & recover
Risk by Hazard
- LightningVery High
- LandslideRelatively High
- Inland FloodingVery High
- WildfireRelatively High
- EarthquakeRelatively High
- TsunamiRelatively High
- Coastal FloodingRelatively Moderate
- HurricaneRelatively Low
- Ice StormRelatively Moderate
- TornadoRelatively Low
- DroughtVery Low
- HailVery Low
- Strong WindVery Low
Source: FEMA National Risk Index (December 2025 release). County-level ratings are relative to other U.S. counties and are not a property-specific assessment.
Waipahu FAQ
What county is Waipahu in?
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Waipahu, Hawaii is located in Honolulu County.
What is the population of Waipahu?
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Waipahu has a population of about 38,216, making it the number 6 of the 24 Hawaii cities listed on GIS Map.
What is the elevation of Waipahu?
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The elevation of Waipahu is approximately 63 feet (19 meters) above sea level at the city center.
What ZIP codes are in Waipahu?
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The ZIP code for Waipahu is 96797.
What time zone is Waipahu in?
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Waipahu is in the Hawaii-Aleutian Standard Time zone (Pacific/Honolulu).
How far is Waipahu from Honolulu?
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Waipahu is about 11 miles from Honolulu, the capital of Hawaii, in a straight line.
What cities are near Waipahu?
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Cities near Waipahu include Pearl City, HI (2 miles); Mililani Town, HI (5 miles); Kapolei, HI (5 miles); Aiea, HI (5 miles); Ewa Beach, HI (5 miles).
Local notes for Waipahu, HI
Questions and local knowledge from people who know the area. Every note is read before it appears here.