Photo: InSapphoWeTrust from Los Angeles, California, USA · CC BY-SA 2.0Living in Makaha Valley, HI: what to set up and who to call
Makaha Valley has no town government of its own, so Honolulu County runs its elections and most services, and its children attend Hawaii Department of Education. For an emergency, Pali Momi Medical Center is the closest ER, 17.3 miles away.
I’m new in town
What to set up in Makaha Valley, and who provides it. Tap an answer for the details and where they come from.
Power, water and internet
Who to call to start service at a new address in Makaha Valley.
Power comes from Hawaiian Electric Co
Hawaiian Electric Co (Hawaiian Electric Co Inc), an investor-owned utility, serves all of Makaha Valley. Its homes paid an average of 40.5¢ per kWh in 2025, about $190 a month (its average across Hawaii).
Start or move service: hawaiianelectric.com · (808) 548-7311
Service territory: HIFLD Electric Retail Service Territories (map dated Aug 2023). Prices and customers: EIA-861, 2025.
Water comes from Waipahu-Ewa-Waianae water system
The Waipahu-Ewa-Waianae water system supplies almost all of Makaha Valley. It draws ground water and serves 217,479 people in all.
No health-based violations reported to EPA in the five years to October 2026, like 86% of the 332 systems serving 100,001–250,000 people.
The latest lead result on file, the 90th percentile of homes sampled in Jan 2016–Dec 2018, was 0.0 ppb, below the 15 ppb action level that applied. It’s from 2018: EPA has no newer result for this system. Results below detection are reported as 0, so 0 doesn’t mean no lead at any tap.
The system’s full record: EPA ECHO report
EPA SDWIS via Envirofacts (violations pulled Oct 9, 2026) and ECHO (lead samples, 2026Q3); service area: EPA Community Water System Service Area Boundaries v3.0. Violations are counted by the start of their compliance period. HI0000335.
2 home internet providers serve Makaha Valley
99% of 100 addresses can get 100/20 Mbps; 94% can get fiber.
| Provider | Technology | Addresses | Fastest (Mbps) |
|---|---|---|---|
| Spectrum | Cable | 99% | 1,000/1,000 |
| Hawaiian Telcom | Fiber | 95% | 2,850/2,850 |
FCC National Broadband Map, as of December 2025. Availability as providers report it, not speeds people get.
We don’t have Makaha Valley’s trash rules yet
Pickup rules, the dump and recycling in Makaha Valley.
Where your child goes to school
Public school districts and the school path by grade.
Makaha Valley is in Hawaii Department of Education.
Test scores and every school: see Schools →U.S. Department of Education, NCES Common Core of Data, 2024–25. Enrollment rules and registration are the district’s.
No town hall: the county runs things
Makaha Valley is unincorporated, so Honolulu County is the local government.
Election office: FVAP local election office directory, updated Jul 2019; jurisdictions: EAC EAVS 2024. Registration rules and links: vote.gov, updated Nov 18, 2024.
Makaha Valley is in ZIP code 96792
ZIP codes where Makaha Valley residents live, with the share of the town in each.
| ZIP | Post office name | Share of Makaha Valley | ZIP’s residents in Makaha Valley |
|---|---|---|---|
| 96792 | Waianae, HI | 100% | 0% |
Census 2020 ZIP Code Tabulation Areas, by census block; post office names: GeoNames (CC BY 4.0). ZIPs created since 2020 are missing.
Getting around, the ER and the library
One line each; the subject pages have the rest.
ER: CMS hospital data. Library: IMLS Public Libraries Survey, FY2024.
Questions about living in Makaha Valley
Who supplies Makaha Valley’s drinking water, and has it had violations?
The Waipahu-Ewa-Waianae water system (EPA ID HI0000335). It reported no health-based violations to EPA in the five years to October 2026; 86% of systems its size had none. Its latest lead 90th percentile was 0.0 ppb (Jan 2016–Dec 2018), against a 15 ppb action level.
Who provides electricity in Makaha Valley?
Hawaiian Electric Co (Hawaiian Electric Co Inc), an investor-owned utility. Its homes paid about 40.5¢ per kWh in 2025 (EIA).
What internet providers serve Makaha Valley?
Spectrum, Hawaiian Telcom (FCC, as of December 2025).
What ZIP codes are in Makaha Valley?
96792. Census 2020 ZIP Code Tabulation Areas.
What school district is Makaha Valley in?
Hawaii Department of Education.
How do I register to vote in Makaha Valley?
In Hawaii you can register online up to and including Election Day, in person up to and including Election Day, or by mail (postmarked 10 days before). Elections here are run by the Honolulu County Clerk. Check your registration at olvr.hawaii.gov.
Sources & dates
Every answer above names its source. Here they are with their dates.
- Water: EPA SDWIS (Envirofacts, pulled Oct 9, 2026), ECHO SDWA 2026Q3, EPA CWS Service Area Boundaries v3.0.
- Power: HIFLD Electric Retail Service Territories (map Aug 2023); EIA-861 final 2025.
- Trash: OpenStreetMap, Geofabrik extract of Oct 9, 2026. © OpenStreetMap contributors (ODbL).
- ZIP codes: Census 2020 ZCTA relationship files; GeoNames postal codes (CC BY 4.0).
- Schools: NCES Common Core of Data, 2024–25.
- Registration: vote.gov, updated Nov 18, 2024 (read Oct 10, 2026). Official sites and area codes: Wikidata.
- Election office: FVAP local election office directory (fetched Oct 10, 2026; each record dated), EAC EAVS 2024 jurisdictions; registration and lookup links from vote.gov’s state data, checked Oct 10, 2026.
- Internet: FCC National Broadband Map, as of December 2025.