ZIP code · Honolulu · Hawaii · United States
ZIP code 96821 — Honolulu
ZIP code 96821 serves Honolulu, Hawaii.
- Postal code
- 96821Single source Value from one source, not cross-checked.
- City
- Honolulu
- County
- Honolulu FIPS 15003
- State
- Hawaii
- Country
- United States
- Coordinates
- 21.2928, -157.7552 — precision precise (locality)
View on OpenStreetMap - Population
- 19,831 (ZCTA, ACS 5-year)
- Population density
- 1,714 / sq mi
- Land area
- 11.6 sq mi (30 km²) (ZCTA, ACS 5-year)
- Median household income
- $174,152
- Per-capita income
- $81,171
- Median age
- 50.3
- Households
- 6,794
- Housing units
- 7,462
- Median home value
- $1,457,700
- Median gross rent
- $2,946 / month
- Congressional district
- HI-1 (119th Congress)
- USDA hardiness zone
- 12b (55 to 60 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- Pacific/Honolulu (UTC−10, no DST)
- Area code
- 808Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.
Tools: compare 96821 with another ZIP · ZIPs within 25 miles · distance from 96821
Nearby localities
Map of ZIP code 96821
Climate — monthly normals
Warmest month Sep (avg high 85°F), coldest Jan (avg low 65°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 78 | 78 | 79 | 80 | 81 | 83 | 84 | 85 | 85 | 84 | 82 | 79 |
| Avg low °F | 65 | 65 | 67 | 69 | 70 | 73 | 74 | 74 | 74 | 73 | 71 | 68 |
| Precip in | 4.8 | 4.5 | 5.4 | 3.3 | 2.4 | 1.3 | 1.9 | 2.0 | 2.6 | 3.5 | 5.4 | 5.5 |
NOAA 1991–2020 climate normals from the nearest station: WAIMANALO EXP F 795.1 (4.1 mi) · NOAA NCEI
Places in ZIP 96821
- 5 schools
- 1 supermarkets
- 14 restaurants & cafés
- 11 parks
- 4 playgrounds
- 1 gyms & sports centres
- 2 libraries
- 2 post offices
- 5 places of worship
- 1 banks
- 2 gas stations
- 1 EV charging stations
- 1 police & fire stations
Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page