Zip Code 94578
San Leandro, California — Alameda County
📍 ZIP code 94578 is in San Leandro, Alameda County, California.
ZIP code 94578 is located in San Leandro, Alameda County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 41,567. The area code for ZIP code 94578 is 408.
Quick Answer
Zip code 94578 is in San Leandro, California (Alameda County). It has a population of 41,567, median household income of $89,149, and median home value of $793,500.
Population
41,567
Income
$89,149
Home Value
$793,500
Climate
75°F / 43°F
About Zip Code 94578
Zip code 94578 is located in San Leandro, California, within Alameda County. Home to approximately 41,567 residents, this area sits at an elevation of 38 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 408.
The median household income is $89,149 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $793,500, and the cost of living index is 204 (104% above the national average of 100).
Summers average a high of 75°F while winters drop to 43°F. The area receives about 16 in of rain annually. The zip code covers 4.5 square miles of land area.
Key Statistics
41,567
$89,149
$793,500
Pacific (PST/PDT)
408
38 ft
4.5 sq mi
37.7
14,819
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Compare With Nearby Zip Codes
| Metric | 94578 | 94580 | 94579 | 94577 | 94546 | 94541 |
|---|---|---|---|---|---|---|
| City | San Leandro, CA | San Lorenzo, CA | San Leandro, CA | San Leandro, CA | Castro Valley, CA | Hayward, CA |
| Population | 41,567 | 28,866 | 19,955 | 47,533 | 45,848 | 67,785 |
| Median Income | $89,149 | $110,106 | $94,193 | $110,989 | $125,780 | $106,556 |
| Home Value | $793,500 | $820,100 | $815,900 | $824,900 | $976,300 | $781,900 |
| Cost of Living | 204 | 224 | 218 | 226 | 250 | 212 |
| Median Age | 37.7 | 41.6 | 46.9 | 40.6 | 42.1 | 37.9 |
Cost of Living
100 = National Average. San Leandro's cost of living is 104% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
8.9x
Demographics
Zip code 94578 has a population of 41,567 people with a median age of 37.7. There are 14,819 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
San Leandro (94578) population trend from 2010 to 2024
↓ -5.1%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
75°F
43°F
16 in
0 in
San Leandro experiences mild summers with average highs around 75°F. Winters are mild with lows averaging 43°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$793,500
Median Household Income
$89,149
With 14,819 housing units across 4.5 square miles, 94578 has a housing density of 3,293 units per square mile. The home price-to-income ratio is 8.9x.
Location & Geography
Latitude
37.7064°
Longitude
-122.1253°
Land Area
4.5 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 94578 (San Leandro, CA) with distances:
All Zip Codes in San Leandro, CA
Other zip codes serving San Leandro:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 94578's $89,149. A way to compare San Leandro 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 94578 (San Leandro, 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 San Leandro, California?
San Leandro, California uses zip code 94578 along with 2 other zip codes.
What county is zip code 94578 in?
Zip code 94578 is located in Alameda County, California.
What is the population of zip code 94578?
The population of zip code 94578 is 41,567 with a median age of 37.7.
Is 94578 in San Leandro, California?
Yes, zip code 94578 is in San Leandro, Alameda County, California. The area code is 408.
Frequently Asked Questions
What city is zip code 94578 in?
Zip code 94578 is in San Leandro, California. It is part of Alameda County and uses the Pacific (PST/PDT) timezone.
What is zip code 94578?
Zip code 94578 is a U.S. postal code in San Leandro, California (Alameda County). It has a population of 41,567 and covers 4.5 square miles.
What is the population of zip code 94578?
The population of zip code 94578 (San Leandro, CA) is 41,567 with a median age of 37.7. There are approximately 14,819 housing units in this area.
What is the median income in zip code 94578?
The median household income in zip code 94578 (San Leandro, CA) is $89,149 per year. The cost of living index is 204 (100 = national average).
What is the average home price in zip code 94578?
The median home value in zip code 94578 (San Leandro, CA) is $793,500. The cost of living index is 204 compared to the national average of 100.
What county is zip code 94578 in?
Zip code 94578 is located in Alameda County, California. The primary city is San Leandro.
What is the area code for zip code 94578?
Zip code 94578 in San Leandro, CA uses area code 408. It is located in the Pacific (PST/PDT) timezone.
Is zip code 94578 a good place to live?
Zip code 94578 (San Leandro, CA) has a cost of living index of 204 (100 = national average), a median household income of $89,149, and median home values of $793,500. The median age is 37.7. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 94578?
The cost of living index for zip code 94578 (San Leandro, CA) is 204, where 100 represents the national average. This area is above the national average. Median home value: $793,500.
What schools serve zip code 94578?
Zip code 94578 in San Leandro, California is served by the local school district of Alameda 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.