ZIP code · Seal Beach · California · United States
ZIP code 90740 — Seal Beach
ZIP code 90740 serves Seal Beach, California.
- Postal code
- 90740Single source Value from one source, not cross-checked.
- City
- Seal Beach
- County
- Orange FIPS 06059
- State
- California
- Country
- United States
- Coordinates
- 33.7602, -118.0808 — precision precise (locality)
View on OpenStreetMap - Population
- 24,382 (ZCTA, ACS 5-year)
- Population density
- 2,205 / sq mi
- Land area
- 11.1 sq mi (28.6 km²) (ZCTA, ACS 5-year)
- Median household income
- $82,427
- Per-capita income
- $67,693
- Median age
- 61.4
- Households
- 12,752
- Housing units
- 14,208
- Median home value
- $488,400
- Median gross rent
- $2,421 / month
- Congressional district
- CA-47 (119th Congress)
- USDA hardiness zone
- 10a (30 to 35 °F)Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
- Time zone
- America/Los_Angeles (UTC−8 / UTC−7 DST)
Tools: compare 90740 with another ZIP · ZIPs within 25 miles · distance from 90740
Map of ZIP code 90740
Climate — monthly normals
Warmest month Aug (avg high 83°F), coldest Dec (avg low 47°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 67 | 67 | 69 | 71 | 73 | 76 | 81 | 83 | 82 | 78 | 73 | 67 |
| Avg low °F | 47 | 48 | 51 | 54 | 58 | 61 | 65 | 66 | 64 | 59 | 52 | 47 |
| Precip in | 2.9 | 3.0 | 1.6 | 0.6 | 0.3 | 0.1 | 0.1 | 0.0 | 0.1 | 0.5 | 0.8 | 2.1 |
NOAA 1991–2020 climate normals from the nearest station: LONG BEACH DAUGHERTY FLD (5.2 mi) · NOAA NCEI
Places in ZIP 90740
- 1 schools
- 3 hospitals & clinics
- 7 doctors & dentists
- 2 pharmacies
- 3 supermarkets
- 56 restaurants & cafés
- 1 bars & pubs
- 13 parks
- 16 playgrounds
- 4 gyms & sports centres
- 4 libraries
- 5 post offices
- 8 places of worship
- 12 banks
- 4 gas stations
- 3 EV charging stations
- 6 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