Waipahu, Hawaii
Waipahu is a Census-designated place (an unincorporated community) in Honolulu County, Hawaii, with 43,485 residents in 2020. It is in Hawaii's 1st congressional district. It spans 3 state senate and 3 state house districts.
County
| County | Share of residents |
|---|---|
| Honolulu County | 100% |
Congressional district
| Congressional district | Share of residents |
|---|---|
| Hawaii's 1st congressional district (HI-01) | 100% |
Elected officials
| Office | Member | Contact | Share of residents |
|---|---|---|---|
| U.S. Representative (HI-01) | Ed Case (D) | 202-225-2726 | 100% |
| U.S. Senator | Brian Schatz (D) | 202-224-3934 · contact form | statewide |
| U.S. Senator | Mazie K. Hirono (D) | 202-224-6361 · contact form | statewide |
| State Senator (State Senate District 19) | Rachele Lamosao (Democratic) | 89% | |
| State Senator (State Senate District 18) | Danielle Bass (Democratic) | 7.4% | |
| State Senator (State Senate District 15) | Glenn Wakai (Democratic) | 3.7% | |
| State Representative (State House District 36) | Daisy Hartsfield (Democratic) | 62% | |
| State Representative (State House District 35) | Cory Chun (Democratic) | 25% | |
| State Representative (State House District 39) | Elijah Pierick (R) | 12% |
Officials serving now (members of Congress until January 3, 2027). Sources: State legislators: Open States (public domain); Members of Congress: the @unitedstates project, congress-legislators (CC0).
Local government
- Waipahu laws: search for the Waipahu, Hawaii code of ordinances
- Honolulu County laws: search for the Honolulu County, Hawaii code of ordinances
State legislative districts
| State senate district | Share of residents |
|---|---|
| State Senate District 19 | 89% |
| State Senate District 18 | 7.4% |
| State Senate District 15 | 3.7% |
| State house district | Share of residents |
|---|---|
| State House District 36 | 62% |
| State House District 35 | 25% |
| State House District 39 | 12% |
ZIP codes
Percentages mark ZIPs only partly in Waipahu: the share of that ZIP's residents living in it.
- 96797 (56%)
Get this in your AI agent
Your agent can get Waipahu's counties and districts with shares, its ZIP codes (level='zcta'), and its boundary as GeoJSON (get_boundaries). Add https://boundarymcp.com/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:
related_geographies(id="us:place:1579700")
Waipahu here is the Census Bureau's place boundary as of January 1, 2025 (a Census-designated place, which has no municipal government). Shares are of 2020 Census population. Districts are the maps in force for the November 3, 2026 election.