94578 ZIP Code — San Leandro, CA
Alameda County, California
ZIP code 94578 is located in San Leandro, California, within Alameda County. It covers approximately 4.56 square miles and serves a population of 42,350 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 341/510.
About ZIP code 94578
The housing stock consists of a significant share of large multi-unit buildings. Most homes were built in the 1950s, giving the area an established character. Median home value is $733,900. Renters make up the majority at 60%, typical of denser urban areas.
Median household income is $87,120.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.
Educational attainment is near the national average, with 26% of residents holding a bachelor's degree or higher.
Notable community characteristics include Spanish spoken in 29% of households.
42,350
population
4.56
sq mi land
Standard
ZIP type
Pacific (PT)
timezone
94578 ZIP code map
Cities in ZIP code 94578
Below are the cities the US Postal Service accepts for ZIP code 94578. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| San Leandro | Preferred |
Nearby ZIP codes
94577 San Leandro (1.8 mi)
94579 San Leandro (2.1 mi)
94580 San Lorenzo (2.2 mi)
94546 Castro Valley (2.8 mi)
94603 Oakland (3.3 mi)
94541 Hayward (3.5 mi)
94605 Oakland (3.6 mi)
94621 Oakland (4.7 mi)
94545 Hayward (5.3 mi)
94619 Oakland (5.9 mi)
94542 Hayward (6.5 mi)
94502 Alameda (6.5 mi)
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 42,350 |
| Population density | 9,287 / sq mi |
| State FIPS | 06 |
| County FIPS | 001 |
| Geography | |
|---|---|
| Land area | 4.56 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 37.7091 |
| Longitude | -122.1285 |
| Timezone | Pacific (PT) |
| Area code | 341/510 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 36.7% | 24.6% | 32.6% |
| $50k – $100k | 31.2% | 23.2% | 27.7% |
| $100k – $200k | 25.9% | 30.5% | 26.4% |
| Over $200k | 6.2% | 21.7% | 13.3% |
Demographics & statistics
42,350
Population
9,287
People per sq mi
38.0
Median age
$87,120
Median household income
$36,558
Per capita income
$733,900
Median home value
$1,951
Median monthly rent
40.1%
Home ownership
12.3%
Poverty rate
5.1%
Unemployment
6,422
Housing units
26.2%
Bachelor's or higher
Age distribution
Male
Female
1,048
Under 5
1,249
1,140
5–9
1,359
1,080
10–14
1,287
1,221
15–19
1,456
1,082
20–24
1,290
3,175
25–34
3,785
2,805
35–44
3,343
2,814
45–54
3,353
1,172
55–59
1,397
1,172
60–64
1,397
1,417
65–74
1,688
786
75–84
937
409
85+
488
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 8,513 | 20.1% |
| 18 and over | 33,837 | 79.9% |
| 65 and over | 5,725 | 13.5% |
| Median age | 38.0 years | |
Race & ethnicity
Asian
22.9%
Hispanic or Latino
20%
White
18.3%
Other race
15.9%
Black or African American
14.6%
Two or more races
7.2%
Native Hawaiian / Pacific Islander
0.7%
American Indian / Alaska Native
0.3%
| Group | Count | % |
|---|---|---|
| Asian | 12,144 | 22.9% |
| Hispanic or Latino | 10,592 | 20% |
| White | 9,680 | 18.3% |
| Other race | 8,425 | 15.9% |
| Black or African American | 7,754 | 14.6% |
| Two or more races | 3,805 | 7.2% |
| Native Hawaiian / Pacific Islander | 394 | 0.7% |
| American Indian / Alaska Native | 148 | 0.3% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 36.7% | 24.6% | 32.6% |
| $50k – $100k | 31.2% | 23.2% | 27.7% |
| $100k – $200k | 25.9% | 30.5% | 26.4% |
| Over $200k | 6.2% | 21.7% | 13.3% |
Under $10k
5.2%
$10k–$15k
2.9%
$15k–$25k
5.8%
$25k–$35k
5.1%
$35k–$50k
12.2%
$50k–$75k
12.0%
$75k–$100k
16.2%
$100k–$150k
18.2%
$150k–$200k
11.8%
$200k+
10.7%
| Range | % of households |
|---|---|
| Under $10k | 5.2% |
| $10k–$15k | 2.9% |
| $15k–$25k | 5.8% |
| $25k–$35k | 5.1% |
| $35k–$50k | 12.2% |
| $50k–$75k | 12.0% |
| $75k–$100k | 16.2% |
| $100k–$150k | 18.2% |
| $150k–$200k | 11.8% |
| $200k+ | 10.7% |
| Median income | $87,120 |
Housing
Home values
Under $50k
1.6%
$50k–$100k
1.1%
$100k–$150k
0.5%
$150k–$200k
0.6%
$200k–$300k
3.0%
$300k–$500k
8.4%
$500k–$1M
75.5%
$1M+
9.3%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $733,900 |
| Median rent / month | $1,951 |
| Owner occupied | 40.1% |
| Renter occupied | 59.9% |
| Vacant | 5.9% |
| Single-family detached | 42.4% |
| Large apartment buildings | 27.9% |
| Mobile homes | 1.6% |
| Median rooms | 4.3 |
| Avg household size (owned) | 3.06 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.1% |
| 2010–2019 | 1.5% |
| 2000–2009 | 3.2% |
| 1990–1999 | 6.1% |
| 1980–1989 | 12.0% |
| 1970–1979 | 20.4% |
| 1960–1969 | 12.7% |
| 1950–1959 | 24.5% |
| 1940–1949 | 14.8% |
| 1939 or earlier | 4.7% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 4.7% |
| 1 bedroom | 20.9% |
| 2 bedrooms | 40.0% |
| 3 bedrooms | 26.9% |
| 4 bedrooms | 6.6% |
| 5+ bedrooms | 0.9% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 7.2% |
| 1 vehicle | 34.2% |
| 2 vehicles | 33.6% |
| 3 or more | 24.9% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 55.6% |
| Electricity | 38.0% |
| Propane / LP gas | 2.7% |
| Wood | 0.1% |
| Solar | 0.7% |
| No fuel used | 2.8% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 5,532 | 39.9% |
| Cohabiting couple | 1,182 | 8.5% |
| Male householder, no spouse | 2,119 | 15.3% |
| Female householder, no spouse | 5,039 | 36.3% |
| Households with children under 18 | 4,583 | 33.0% |
| Households with seniors (65+) | 3,943 | 28.4% |
| Average household size | 2.99 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 44.1% | 42.6% |
| Married | 43.7% | 36.0% |
| Separated | 1.0% | 2.3% |
| Widowed | 3.1% | 9.5% |
| Divorced | 8.0% | 9.6% |
Education
Less than 9th grade
9.0%
Some HS, no diploma
7.9%
HS graduate
24.7%
Some college, no degree
24.3%
Associate's degree
7.9%
Bachelor's degree
19.4%
Graduate / professional
6.8%
| Metric | % |
|---|---|
| HS diploma or higher | 83.1% |
| Bachelor's or higher | 26.2% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 587 | 5.9% |
| Kindergarten | 730 | 7.3% |
| Elementary school | 3,550 | 35.7% |
| High school | 2,298 | 23.1% |
| College / grad school | 2,785 | 28.0% |
Employment
Industry of employment
Education & healthcare
22.1%
Professional & management
12.5%
Retail trade
11.8%
Arts, food & hospitality
10.3%
Manufacturing
9.8%
Construction
8.2%
Finance & real estate
6.2%
Transportation & utilities
5.0%
Other services
4.9%
Public administration
3.7%
Wholesale trade
2.8%
Information
1.9%
Agriculture & mining
0.8%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 32.0% |
| Service | 22.5% |
| Sales & office | 18.7% |
| Natural resources & construction | 10.4% |
| Production & transportation | 16.5% |
Employment type
| Type | % |
|---|---|
| Private sector | 83.7% |
| Government | 11.5% |
| Self-employed | 4.8% |
| Unpaid family workers | 0.1% |
Commute
| Method | % |
|---|---|
| Drive alone | 69.1% |
| Carpool | 11.1% |
| Public transit | 8.9% |
| Walk | 1.2% |
| Work from home | 7.3% |
| Other means | 2.4% |
| Avg commute (minutes) | 31.8 |
Poverty
All people
12.3%
Under 18 years
17.9%
18 and over
10.9%
Married-couple families
4.3%
Female-led households
15.6%
Income support
| Source | % of households |
|---|---|
| Social Security | 24.3% |
| Retirement income | 20.9% |
| Supplemental Security | 5.3% |
| Cash public assistance | 6.5% |
| Food stamps / SNAP | 14.3% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 28.5% |
| High blood pressure | 27.6% |
| High cholesterol | 27.8% |
| Diabetes | 10.1% |
| Heart disease | 4.8% |
| Stroke | 2.7% |
| Asthma | 9.8% |
| Arthritis | 18.0% |
| Kidney disease | 2.5% |
| Pulmonary disease | 5.1% |
| Cancer | 4.6% |
| Behavior / access | % |
|---|---|
| Smoking | 13.3% |
| Binge drinking | 15.9% |
| No physical activity | 22.1% |
| Less than 7 hrs sleep | 32.3% |
| Depression | 15.3% |
| Fair or poor health | 15.8% |
| Poor mental health | 15.0% |
| Poor physical health | 9.7% |
| No health insurance | 15.4% |
| Visited doctor (checkup) | 65.2% |
| Visited dentist | 55.7% |
| Cholesterol screening | 89.8% |
| Teeth loss | 12.3% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1,032 | 3.1% |
| Disability | % |
|---|---|
| Any disability | 11.7% |
| Under 18 | 4.6% |
| 18–64 years | 9.2% |
| 65 and over | 35.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 59.6% |
| Public insurance | 43.6% |
| No insurance | 5.8% |
| Uninsured under 19 | 1.8% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 40,053 | 94.6% |
| Spanish | 11,616 | 29.0% |
| Other Indo-European | 5,186 | 12.9% |
| Asian & Pacific Islander | 290 | 0.7% |
| Other languages | 5,854 | 14.6% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 25,890 | 61.1% |
| Born in same state | 25,479 | 60.2% |
| Born in different state | 21,639 | 51.1% |
| Foreign born | 411 | 1.0% |
| Naturalized citizen | 16,460 | 38.9% |
| Not a US citizen | 7,828 | 47.6% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Arab | 1,226 | 2.9% |
| Italian | 935 | 2.2% |
| French | 659 | 1.6% |
| Polish | 84 | 0.2% |
| Ancestry | Count | % |
|---|---|---|
| Dutch | 80 | 0.2% |
| Norwegian | 27 | 0.1% |
| English | 24 | 0.1% |
| German | 16 | 0% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 32.8% |
| Internet access | 94.7% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 94578
What city is ZIP code 94578 in?
ZIP code 94578 is primarily assigned to San Leandro, California.
What county is ZIP code 94578 in?
ZIP code 94578 falls within Alameda County, California.
Is Spanish widely spoken in ZIP code 94578?
Approximately 29% of households in ZIP code 94578 speak Spanish as a primary language.
Is ZIP code 94578 mostly rentals?
60% of occupied units in ZIP code 94578 are renter-occupied.
What is the typical home value in ZIP code 94578?
The median home value in ZIP code 94578 is $733,900.
What is the population of ZIP code 94578?
ZIP code 94578 has an estimated population of 42,350 residents, with a density of 9,289 people per square mile.
What timezone is ZIP code 94578 in?
ZIP code 94578 observes the PST timezone.