Boundary Atlas

ZIP code 96818: Urban Honolulu, HI

ZIP code 96818 is in Urban Honolulu (68% of residents), Hickam Housing (14%) and Halawa (12%), in Honolulu County, Hawaii. 7.0% of its residents live outside city limits. It is in Hawaii's 1st congressional district. Its state senate district is State Senate District 15; its state house districts are State House District 31 (58%), State House District 32 (25%) and State House District 30 (16%).

51,851residents (2020 Census)
10.8 sq miland area
3cities and towns
1congressional district
5voting precincts

See it on the mapAll of Hawaii

City and county

City or townShare of ZIP residents
Urban Honolulu68%
Hickam Housing14%
Halawa12%

CountyShare of ZIP residents
Honolulu County100%

Town or county subdivisionShare of ZIP residents
Honolulu CCD73%
Ewa CCD27%

Congressional district

Congressional districtShare of ZIP residents
Hawaii's 1st congressional district (HI-01)100%

Elected officials

OfficeMemberContactShare of residents
U.S. Representative (HI-01)Ed Case (D)202-225-2726100%
U.S. SenatorBrian Schatz (D)202-224-3934 · contact formstatewide
U.S. SenatorMazie K. Hirono (D)202-224-6361 · contact formstatewide
State Senator (State Senate District 15)Glenn Wakai (Democratic)100%
State Representative (State House District 31)Linda Ichiyama (Democratic)58%
State Representative (State House District 32)Garner Shimizu (R)25%
State Representative (State House District 30)Shirley Templo (Democratic)16%

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

State legislative districts

State senate districtShare of ZIP residents
State Senate District 15100%

State house districtShare of ZIP residents
State House District 3158%
State House District 3225%
State House District 3016%

Voting precincts

5 voting precincts overlap ZIP 96818. Map them, with each precinct's share of the ZIP's residents.

Get this in your AI agent

Your agent can get these cities, counties, districts and precincts with their shares, and their GeoJSON boundaries, from Boundary Atlas. Add https://atlas-production-d344.up.railway.app/mcp to Claude, ChatGPT, Cursor or Codex (free, no key; how), then:

related_geographies(id="us:zcta:96818")

ZIP 96818 here is the Census Bureau's ZIP Code Tabulation Area, which approximates the USPS ZIP Code; PO-box-only ZIPs have none. Districts are the maps in force for the November 3, 2026 election.