Palo Alto ZIP Codes — Santa Clara County, CA

There are 6 unique ZIP codes in Palo Alto, California. Area code: 650.

ZIP codes

19.70

sq mi land

0.15

sq mi water

650

area code

Palo Alto, CA ZIP code map

About Palo Alto, CA

Palo Alto, California, is a vibrant city known for its rich blend of innovation and culture. Located in the heart of Silicon Valley, it serves as a crucial hub for technology and education. The city's charming neighborhoods and beautiful parks make it an appealing destination for residents and visitors alike.

Location & geography

Situated in Santa Clara County, Palo Alto is bordered by neighboring cities like Menlo Park to the north, Mountain View to the south, and Los Altos to the east. The city covers a total land area of 28.14 square miles, with a small water area of 0.30 square miles. The diverse terrain features both urban landscapes and natural settings, providing residents with scenic views and outdoor recreation options.

Community & economy

Palo Alto is characterized by its strong community spirit and a population that values education and sustainability. The economy is driven by the tech industry, with numerous startups and established companies calling the city home. Daily life in Palo Alto is enriched by local farmers' markets, cultural events, and a commitment to maintaining green spaces.

Transportation

Palo Alto is well-connected by major highways, including U.S. Route 101 and California State Route 82, facilitating easy access to the surrounding regions. The nearest major airport is San Francisco International Airport, located about 20 miles to the north. Public transportation options such as Caltrain provide convenient travel to various destinations within the Bay Area.

History

Founded in the late 19th century, Palo Alto has a rich history closely tied to Stanford University, which significantly influenced its development. The city emerged as a center for technology and innovation, especially during the tech boom in Silicon Valley. Notable events include the establishment of influential companies and institutions that have shaped the global technology landscape.

Did you know?

One surprising fact about Palo Alto is that it is home to one of the oldest known living coastal redwood trees, known as the 'Palo Alto tree.' Additionally, the city was the birthplace of several major tech companies, including Hewlett-Packard, which played a significant role in Silicon Valley's growth.

ZIP codes for Palo Alto, CA (6)

ZIP code	City	County	Map
94301	Palo Alto	Santa Clara	View map
94302	Palo Alto	Santa Clara	View map
94303	Palo Alto	Santa Clara	View map
94304	Palo Alto	Santa Clara	View map
94306	Palo Alto	Santa Clara	View map
94309	Palo Alto	Santa Clara	View map

Demographics & statistics

97,522

Population

40.0

Median age

$173,773

Median household income

$93,207

Per capita income

$1,917,725

Median home value

$2,901

Median monthly rent

47.3%

Home ownership

6.4%

Poverty rate

2.9%

Unemployment

22,126

Housing units

73.0%

Bachelor's or higher

Age distribution

Male Female

2,349

Under 5

2,611

2,544

5–9

2,828

3,236

10–14

3,596

3,339

15–19

3,710

2,505

20–24

2,785

6,205

25–34

6,897

6,088

35–44

6,766

6,465

45–54

7,186

3,026

55–59

3,364

2,898

60–64

3,221

3,478

65–74

3,866

2,512

75–84

2,792

1,542

85+

1,713

← Male

Female →

Age summary

Group	Count	%
Under 18	21,982	20.8%
18 and over	75,540	79.3%
65 and over	15,903	19.8%
Median age	40.0 years

Race & ethnicity

White 38.7%

Asian 22.5%

Hispanic or Latino 13.7%

Other race 9.5%

Two or more races 8.5%

Black or African American 4.6%

Native Hawaiian / Pacific Islander 1.5%

American Indian / Alaska Native 1%

Group	Count	%
White	43,768	38.7%
Asian	25,369	22.5%
Hispanic or Latino	15,440	13.7%
Other race	10,745	9.5%
Two or more races	9,568	8.5%
Black or African American	5,221	4.6%
Native Hawaiian / Pacific Islander	1,679	1.5%
American Indian / Alaska Native	1,172	1%

Household income

Under $10k 2.9%

$10k–$15k 2.0%

$15k–$25k 3.6%

$25k–$35k 2.5%

$35k–$50k 4.4%

$50k–$75k 8.5%

$75k–$100k 6.2%

$100k–$150k 13.3%

$150k–$200k 11.5%

$200k+ 45.2%

Range	% of households
Under $10k	2.9%
$10k–$15k	2.0%
$15k–$25k	3.6%
$25k–$35k	2.5%
$35k–$50k	4.4%
$50k–$75k	8.5%
$75k–$100k	6.2%
$100k–$150k	13.3%
$150k–$200k	11.5%
$200k+	45.2%
Median income	$173,773

Housing

Home values

Under $50k 0.5%

$50k–$100k 0.3%

$100k–$150k 0.2%

$150k–$200k 0.2%

$200k–$300k 0.6%

$300k–$500k 0.8%

$500k–$1M 5.9%

$1M+ 91.5%

Housing overview

Metric	Value
Median home value	$1,917,725
Median rent / month	$2,901
Owner occupied	47.3%
Renter occupied	52.7%
Vacant	11.2%
Single-family detached	46.7%
Large apartment buildings	29.5%
Mobile homes	0.7%
Median rooms	4.7
Avg household size (owned)	2.77

Year built

Era	%
2020 or later	0.2%
2010–2019	5.9%
2000–2009	16.7%
1990–1999	7.0%
1980–1989	7.3%
1970–1979	12.5%
1960–1969	12.9%
1950–1959	20.2%
1940–1949	6.6%
1939 or earlier	11.0%

Bedrooms

Size	% of units
No bedroom (studio)	5.9%
1 bedroom	19.4%
2 bedrooms	30.9%
3 bedrooms	20.8%
4 bedrooms	16.2%
5+ bedrooms	6.9%

Vehicles per household

Vehicles	% of households
No vehicle	8.4%
1 vehicle	39.6%
2 vehicles	34.5%
3 or more	17.5%

Heating fuel

Fuel type	%
Utility gas	57.9%
Electricity	38.4%
Propane / LP gas	0.9%
Fuel oil	0.1%
Wood	0.1%
Solar	0.4%
No fuel used	2.1%

Households & families

Household type	Count	%
Married-couple family	19,049	53.9%
Cohabiting couple	1,832	4.6%
Male householder, no spouse	5,021	15.1%
Female householder, no spouse	8,261	26.5%
Households with children under 18	11,648	30.6%
Households with seniors (65+)	10,992	33.9%
Average household size	2.60

Marital status

Status	Male	Female
Never married	35.7%	26.5%
Married	56.1%	51.7%
Separated	1.2%	0.9%
Widowed	1.8%	10.3%
Divorced	5.2%	10.7%

Education

Less than 9th grade 4.7%

Some HS, no diploma 2.3%

HS graduate 7.3%

Some college, no degree 9.6%

Associate's degree 3.2%

Bachelor's degree 24.4%

Graduate / professional 48.6%

Metric	%
HS diploma or higher	93.1%
Bachelor's or higher	73.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	1,414	6.3%
Kindergarten	1,410	5.3%
Elementary school	9,238	37.3%
High school	6,477	24.1%
College / grad school	6,245	27.2%

Employment

Industry of employment

Education & healthcare 33.4%

Professional & management 25.8%

Manufacturing 9.4%

Information 6.5%

Arts, food & hospitality 5.2%

Finance & real estate 4.6%

Retail trade 4.3%

Other services 3.1%

Construction 2.5%

Transportation & utilities 2.0%

Public administration 1.8%

Wholesale trade 1.0%

Agriculture & mining 0.5%

Occupation

Category	%
Management, business & arts	72.6%
Service	10.1%
Sales & office	9.7%
Natural resources & construction	2.6%
Production & transportation	5.0%

Employment type

Type	%
Private sector	83.9%
Government	8.5%
Self-employed	7.6%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	48.5%
Carpool	4.9%
Public transit	3.3%
Walk	7.1%
Other means	12.3%
Avg commute (minutes)	23.1

Poverty

All people 6.4%

Under 18 years 8.1%

18 and over 5.9%

Married-couple families 1.8%

Female-led households 12.8%

Income support

Source	% of households
Social Security	27.4%
Retirement income	19.9%
Supplemental Security	3.1%
Cash public assistance	1.8%
Food stamps / SNAP	3.1%

Health indicators

Condition	%
High blood pressure	24.9%
High cholesterol	28.5%
Heart disease	4.8%
Stroke	2.2%
Asthma	8.2%
Arthritis	18.3%
Kidney disease	2.4%
Pulmonary disease	3.8%
Cancer	6.9%

Behavior / access	%
Binge drinking	17.2%
No physical activity	15.0%
Less than 7 hrs sleep	25.7%
Fair or poor health	9.4%
Poor mental health	11.0%
Poor physical health	6.9%
No health insurance	7.9%
Visited doctor (checkup)	67.0%
Visited dentist	72.1%
Cholesterol screening	92.9%
Teeth loss	5.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,603	2.4%

Disability	%
Any disability	9.1%
Under 18	2.0%
18–64 years	5.3%
65 and over	29.6%

Health insurance coverage

Type	%
Private insurance	82.4%
Public insurance	27.3%
Uninsured under 19	1.3%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	92,562	95.0%
Spanish	13,666	11.7%
Other Indo-European	6,335	4.4%
Asian & Pacific Islander	1,885	1.9%
Other languages	5,384	5.4%

Place of birth & citizenship

Origin	Count	%
Native born (US)	62,234	65.1%
Born in same state	59,479	61.9%
Born in different state	39,563	38.8%
Foreign born	2,755	3.2%
Naturalized citizen	35,288	34.9%
Not a US citizen	18,782	53.0%

Ancestry

Ancestry	Count	%
French	6,849	7%
Italian	4,526	4.6%
Arab	2,699	2.8%
Polish	1,290	1.3%
English	658	0.7%

Ancestry	Count	%
Dutch	426	0.4%
Norwegian	386	0.4%
Irish	340	0.3%
German	284	0.3%

Technology access

Metric	% of households
Computer access	38.7%
Internet access	97.4%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What ZIP codes does Palo Alto, CA have?

Palo Alto, CA has 4 ZIP codes: 94301, 94303, 94304, and 94306. Each ZIP code serves a distinct delivery area within the city and surrounding region.