94303 ZIP Code — Palo Alto, CA
Santa Clara County, California
ZIP code 94303 is located in Palo Alto, California, within Santa Clara County. It covers approximately 8.44 square miles and serves a population of 47,989 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 650.
About ZIP code 94303
The housing stock consists of a mix of housing types. Most homes were built in the 1950s, giving the area an established character. Median home value is $1,670,900. Owner-occupancy sits near the national average at 57%.
The gap between median ($144,259) and mean household income suggests income inequality — a small number of higher earners pull the average up.
The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 25 minutes is near the national average.
Educational attainment is high — 48% of residents hold a bachelor's degree or higher, well above the national average of 33%.
47,989
population
8.44
sq mi land
Standard
ZIP type
Pacific (PT)
timezone
94303 ZIP code map
Cities in ZIP code 94303
Below are the cities the US Postal Service accepts for ZIP code 94303. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Palo Alto | Acceptable |
| Palo Alto | Acceptable |
| Palo Alto | Preferred |
Nearby ZIP codes
94301 Palo Alto (1.9 mi)
94306 Palo Alto (3.2 mi)
94305 Stanford (3.4 mi)
94025 Menlo Park (3.5 mi)
94043 Mountain View (3.7 mi)
94304 Palo Alto (4.4 mi)
94027 Atherton (4.6 mi)
94040 Mountain View (5.4 mi)
94041 Mountain View (5.5 mi)
94063 Redwood City (5.6 mi)
94560 Newark (5.9 mi)
94089 Sunnyvale (6.2 mi)
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 47,989 |
| Population density | 5,686 / sq mi |
| State FIPS | 06 |
| County FIPS | 085 |
| Geography | |
|---|---|
| Land area | 8.44 sq mi |
| Water area | 0.15 sq mi |
| Latitude | 37.4578 |
| Longitude | -122.1225 |
| Timezone | Pacific (PT) |
| Area code | 650 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 20.4% | 19.3% | 32.6% |
| $50k – $100k | 22.0% | 19.7% | 27.7% |
| $100k – $200k | 26.7% | 31.0% | 26.4% |
| Over $200k | 30.9% | 30.0% | 13.3% |
Demographics & statistics
47,989
Population
5,686
People per sq mi
37.4
Median age
$144,259
Median household income
$65,697
Per capita income
$1,670,900
Median home value
$2,458
Median monthly rent
56.7%
Home ownership
8.3%
Poverty rate
5.1%
Unemployment
9,236
Housing units
48.4%
Bachelor's or higher
Age distribution
Male
Female
1,402
Under 5
1,401
1,428
5–9
1,426
1,733
10–14
1,732
1,969
15–19
1,968
1,375
20–24
1,373
3,434
25–34
3,430
3,314
35–44
3,310
3,413
45–54
3,409
1,509
55–59
1,507
1,503
60–64
1,502
1,496
65–74
1,495
1,011
75–84
1,009
420
85+
420
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 11,719 | 24.4% |
| 18 and over | 36,270 | 75.6% |
| 65 and over | 5,851 | 12.2% |
| Median age | 37.4 years | |
Race & ethnicity
White
27.6%
Hispanic or Latino
20.5%
Asian
16.7%
Other race
15.4%
Two or more races
8.4%
Black or African American
7%
Native Hawaiian / Pacific Islander
2.6%
American Indian / Alaska Native
1.7%
| Group | Count | % |
|---|---|---|
| White | 16,675 | 27.6% |
| Hispanic or Latino | 12,385 | 20.5% |
| Asian | 10,110 | 16.7% |
| Other race | 9,307 | 15.4% |
| Two or more races | 5,087 | 8.4% |
| Black or African American | 4,214 | 7% |
| Native Hawaiian / Pacific Islander | 1,567 | 2.6% |
| American Indian / Alaska Native | 1,029 | 1.7% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 20.4% | 19.3% | 32.6% |
| $50k – $100k | 22.0% | 19.7% | 27.7% |
| $100k – $200k | 26.7% | 31.0% | 26.4% |
| Over $200k | 30.9% | 30.0% | 13.3% |
Under $10k
2.7%
$10k–$15k
1.3%
$15k–$25k
3.8%
$25k–$35k
4.3%
$35k–$50k
4.6%
$50k–$75k
11.0%
$75k–$100k
7.6%
$100k–$150k
15.4%
$150k–$200k
10.5%
$200k+
38.8%
| Range | % of households |
|---|---|
| Under $10k | 2.7% |
| $10k–$15k | 1.3% |
| $15k–$25k | 3.8% |
| $25k–$35k | 4.3% |
| $35k–$50k | 4.6% |
| $50k–$75k | 11.0% |
| $75k–$100k | 7.6% |
| $100k–$150k | 15.4% |
| $150k–$200k | 10.5% |
| $200k+ | 38.8% |
| Median income | $144,259 |
Housing
Home values
Under $50k
0.4%
$50k–$100k
0.5%
$100k–$150k
0.3%
$150k–$200k
0.1%
$200k–$300k
0.9%
$300k–$500k
2.0%
$500k–$1M
16.6%
$1M+
79.1%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $1,670,900 |
| Median rent / month | $2,458 |
| Owner occupied | 56.7% |
| Renter occupied | 43.3% |
| Vacant | 7.4% |
| Single-family detached | 66.1% |
| Large apartment buildings | 16.3% |
| Mobile homes | 1.0% |
| Median rooms | 5.2 |
| Avg household size (owned) | 3.28 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.1% |
| 2010–2019 | 3.2% |
| 2000–2009 | 14.5% |
| 1990–1999 | 4.2% |
| 1980–1989 | 4.4% |
| 1970–1979 | 9.2% |
| 1960–1969 | 15.6% |
| 1950–1959 | 35.5% |
| 1940–1949 | 10.1% |
| 1939 or earlier | 3.2% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 5.4% |
| 1 bedroom | 12.8% |
| 2 bedrooms | 19.3% |
| 3 bedrooms | 32.5% |
| 4 bedrooms | 24.5% |
| 5+ bedrooms | 5.5% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 4.5% |
| 1 vehicle | 25.9% |
| 2 vehicles | 40.2% |
| 3 or more | 29.5% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 69.0% |
| Electricity | 26.8% |
| Propane / LP gas | 1.1% |
| Fuel oil | 0.2% |
| Wood | 0.1% |
| Solar | 0.7% |
| No fuel used | 2.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 8,380 | 58.7% |
| Cohabiting couple | 794 | 5.6% |
| Male householder, no spouse | 2,020 | 14.1% |
| Female householder, no spouse | 3,082 | 21.6% |
| Households with children under 18 | 5,940 | 41.6% |
| Households with seniors (65+) | 4,061 | 28.4% |
| Average household size | 3.34 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 41.9% | 32.5% |
| Married | 50.5% | 50.7% |
| Separated | 0.8% | 1.7% |
| Widowed | 1.4% | 6.9% |
| Divorced | 5.4% | 8.2% |
Education
Less than 9th grade
12.1%
Some HS, no diploma
6.2%
HS graduate
13.7%
Some college, no degree
15.3%
Associate's degree
4.3%
Bachelor's degree
19.1%
Graduate / professional
29.3%
| Metric | % |
|---|---|
| HS diploma or higher | 81.7% |
| Bachelor's or higher | 48.4% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 713 | 5.6% |
| Kindergarten | 869 | 6.8% |
| Elementary school | 4,508 | 35.2% |
| High school | 3,562 | 27.8% |
| College / grad school | 3,163 | 24.7% |
Employment
Industry of employment
Professional & management
23.7%
Education & healthcare
17.7%
Arts, food & hospitality
9.5%
Manufacturing
8.6%
Retail trade
7.6%
Information
7.2%
Construction
6.8%
Other services
6.5%
Finance & real estate
4.2%
Transportation & utilities
3.3%
Public administration
2.2%
Agriculture & mining
1.4%
Wholesale trade
1.2%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 50.4% |
| Service | 21.0% |
| Sales & office | 13.1% |
| Natural resources & construction | 6.7% |
| Production & transportation | 8.7% |
Employment type
| Type | % |
|---|---|
| Private sector | 83.0% |
| Government | 9.0% |
| Self-employed | 7.9% |
| Unpaid family workers | 0.1% |
Commute
| Method | % |
|---|---|
| Drive alone | 61.7% |
| Carpool | 9.4% |
| Public transit | 2.7% |
| Walk | 1.2% |
| Work from home | 18.4% |
| Other means | 6.5% |
| Avg commute (minutes) | 25.2 |
Poverty
All people
8.3%
Under 18 years
11.3%
18 and over
7.3%
Married-couple families
3.5%
Female-led households
14.2%
Income support
| Source | % of households |
|---|---|
| Social Security | 22.9% |
| Retirement income | 17.6% |
| Supplemental Security | 4.5% |
| Cash public assistance | 2.4% |
| Food stamps / SNAP | 7.1% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 26.1% |
| High blood pressure | 24.6% |
| High cholesterol | 27.6% |
| Diabetes | 9.2% |
| Heart disease | 4.2% |
| Stroke | 2.3% |
| Asthma | 9.3% |
| Arthritis | 16.4% |
| Kidney disease | 2.4% |
| Pulmonary disease | 4.1% |
| Cancer | 4.8% |
| Behavior / access | % |
|---|---|
| Smoking | 10.6% |
| Binge drinking | 17.5% |
| No physical activity | 20.3% |
| Less than 7 hrs sleep | 30.1% |
| Depression | 14.7% |
| Fair or poor health | 14.2% |
| Poor mental health | 13.6% |
| Poor physical health | 8.6% |
| No health insurance | 16.2% |
| Visited doctor (checkup) | 65.2% |
| Visited dentist | 63.8% |
| Cholesterol screening | 89.8% |
| Teeth loss | 8.9% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 663 | 1.8% |
| Disability | % |
|---|---|
| Any disability | 8.1% |
| Under 18 | 1.8% |
| 18–64 years | 5.5% |
| 65 and over | 33.7% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 71.4% |
| Public insurance | 31.6% |
| No insurance | 5.9% |
| Uninsured under 19 | 2.8% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 45,186 | 94.2% |
| Spanish | 8,756 | 19.4% |
| Other Indo-European | 5,327 | 11.8% |
| Asian & Pacific Islander | 1,097 | 2.4% |
| Other languages | 2,310 | 5.1% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 29,003 | 60.4% |
| Born in same state | 27,935 | 58.2% |
| Born in different state | 21,224 | 44.2% |
| Foreign born | 1,068 | 2.2% |
| Naturalized citizen | 18,986 | 39.6% |
| Not a US citizen | 9,633 | 50.7% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 2,047 | 4.3% |
| Italian | 1,201 | 2.5% |
| Arab | 1,055 | 2.2% |
| Polish | 330 | 0.7% |
| Ancestry | Count | % |
|---|---|---|
| Norwegian | 214 | 0.4% |
| Irish | 161 | 0.3% |
| Dutch | 96 | 0.2% |
| English | 79 | 0.2% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 29.7% |
| Internet access | 97.8% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 94303
What city is ZIP code 94303 in?
ZIP code 94303 is primarily assigned to Palo Alto, California.
What county is ZIP code 94303 in?
ZIP code 94303 falls within Santa Clara County, California.
How educated is the population of ZIP code 94303?
48% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.
What is the median household income in ZIP code 94303?
The median household income in ZIP code 94303 is $144,259, above the national median of ~$75,000.
What is the typical home value in ZIP code 94303?
The median home value in ZIP code 94303 is $1,670,900.
What is the population of ZIP code 94303?
ZIP code 94303 has an estimated population of 47,989 residents, with a density of 5,687 people per square mile.
What timezone is ZIP code 94303 in?
ZIP code 94303 observes the PST timezone.