Zip Code 90740
Seal Beach, California — Orange County
📍 ZIP code 90740 is in Seal Beach, Orange County, California.
ZIP code 90740 is located in Seal Beach, Orange County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 24,382. The area code for ZIP code 90740 is 818.
Quick Answer
Zip code 90740 is in Seal Beach, California (Orange County). It has a population of 24,382, median household income of $82,427, and median home value of $488,400.
Population
24,382
Income
$82,427
Home Value
$488,400
Climate
81°F / 47°F
About Zip Code 90740
Zip code 90740 is located in Seal Beach, California, within Orange County. Home to approximately 24,382 residents, this area sits at an elevation of 12 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 818.
The median household income is $82,427 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $488,400, and the cost of living index is 142 (42% above the national average of 100).
Summers average a high of 81°F while winters drop to 47°F. The area receives about 12 in of rain annually. The zip code covers 8.8 square miles of land area and 0.8 square miles of water.
Key Statistics
24,382
$82,427
$488,400
Pacific (PST/PDT)
818
12 ft
8.8 sq mi
61.4
14,208
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Compare With Nearby Zip Codes
| Metric | 90740 | 90743 | 90720 | 92649 | 90742 | 92845 |
|---|---|---|---|---|---|---|
| City | Seal Beach, CA | Surfside, CA | Los Alamitos, CA | Huntington Beach, CA | Sunset Beach, CA | Garden Grove, CA |
| Population | 24,382 | 478 | 24,021 | 35,504 | 385 | 15,484 |
| Median Income | $82,427 | $166,023 | $134,232 | $121,604 | $119,115 | $133,564 |
| Home Value | $488,400 | $2M+ | $1,166,200 | $1,070,800 | $1,625,000 | $882,600 |
| Cost of Living | 142 | 250 | 250 | 250 | 250 | 246 |
| Median Age | 61.4 | 51.2 | 43 | 45.1 | 58.3 | 43.9 |
Cost of Living
100 = National Average. Seal Beach's cost of living is 42% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
5.9x
Demographics
Zip code 90740 has a population of 24,382 people with a median age of 61.4. There are 14,208 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Seal Beach (90740) population trend from 2010 to 2024
↑ 10.9%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
81°F
47°F
12 in
0 in
Seal Beach experiences warm summers with average highs around 81°F. Winters are mild with lows averaging 47°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$488,400
Median Household Income
$82,427
With 14,208 housing units across 8.8 square miles, 90740 has a housing density of 1,615 units per square mile. The home price-to-income ratio is 5.9x.
Location & Geography
Latitude
33.7590°
Longitude
-118.0672°
Land Area
8.8 sq mi
Water Area
0.8 sq mi
Nearby Zip Codes
Zip codes closest to 90740 (Seal Beach, CA) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 90740's $82,427. A way to compare Seal Beach to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 90740 (Seal Beach, CA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Seal Beach, California?
Seal Beach, California uses zip code 90740.
What county is zip code 90740 in?
Zip code 90740 is located in Orange County, California.
What is the population of zip code 90740?
The population of zip code 90740 is 24,382 with a median age of 61.4.
Is 90740 in Seal Beach, California?
Yes, zip code 90740 is in Seal Beach, Orange County, California. The area code is 818.
Frequently Asked Questions
What city is zip code 90740 in?
Zip code 90740 is in Seal Beach, California. It is part of Orange County and uses the Pacific (PST/PDT) timezone.
What is zip code 90740?
Zip code 90740 is a U.S. postal code in Seal Beach, California (Orange County). It has a population of 24,382 and covers 8.8 square miles.
What is the population of zip code 90740?
The population of zip code 90740 (Seal Beach, CA) is 24,382 with a median age of 61.4. There are approximately 14,208 housing units in this area.
What is the median income in zip code 90740?
The median household income in zip code 90740 (Seal Beach, CA) is $82,427 per year. The cost of living index is 142 (100 = national average).
What is the average home price in zip code 90740?
The median home value in zip code 90740 (Seal Beach, CA) is $488,400. The cost of living index is 142 compared to the national average of 100.
What county is zip code 90740 in?
Zip code 90740 is located in Orange County, California. The primary city is Seal Beach.
What is the area code for zip code 90740?
Zip code 90740 in Seal Beach, CA uses area code 818. It is located in the Pacific (PST/PDT) timezone.
Is zip code 90740 a good place to live?
Zip code 90740 (Seal Beach, CA) has a cost of living index of 142 (100 = national average), a median household income of $82,427, and median home values of $488,400. The median age is 61.4. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 90740?
The cost of living index for zip code 90740 (Seal Beach, CA) is 142, where 100 represents the national average. This area is above the national average. Median home value: $488,400.
What schools serve zip code 90740?
Zip code 90740 in Seal Beach, California is served by the local school district of Orange County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.