94304 ZIP Code — Palo Alto, CA

Santa Clara County, California

ZIP code 94304 is located in Palo Alto, California, within Santa Clara County. It covers approximately 4.81 square miles and serves a population of 4,489 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 650.

About ZIP code 94304

The housing stock consists of a significant share of large multi-unit buildings. Most homes were built in the 2000s, giving the area an established character. Median home value is $2,000,000. Renters make up the majority at 78%, typical of denser urban areas.

The gap between median ($159,637) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 6% is below the national average. 31% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 18 minutes is near the national average.

Educational attainment is high — 81% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 94304 reflects a community defined by a highly educated population and a significant Social Security-dependent population.

4,489

population

4.81

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

94304 ZIP code map

Cities in ZIP code 94304

Below are the cities the US Postal Service accepts for ZIP code 94304. Using any city not on this list may result in mail delivery delays.

City	Status
Palo Alto	Preferred

Nearby ZIP codes

94305 Stanford (1.4 mi) 94306 Palo Alto (2.1 mi) 94301 Palo Alto (2.8 mi) 94022 Los Altos (2.9 mi) 94028 Portola Valley (3.6 mi) 94027 Atherton (3.8 mi) 94025 Menlo Park (3.9 mi) 94303 Palo Alto (4.4 mi) 94040 Mountain View (4.6 mi) 94024 Los Altos (4.6 mi) 94043 Mountain View (5.1 mi) 94041 Mountain View (5.2 mi)

Demographics updated 05/2026

Population
Total population	4,489
Population density	933 / sq mi
State FIPS	06
County FIPS	085

Geography
Land area	4.81 sq mi
Water area	0.00 sq mi
Latitude	37.4043
Longitude	-122.1673
Timezone	Pacific (PT)
Area code	650

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	13.9%	19.3%	32.6%
$50k – $100k	23.3%	19.7%	27.7%
$100k – $200k	27.4%	31.0%	26.4%
Over $200k	35.4%	30.0%	13.3%

Demographics & statistics

4,489

Population

933

People per sq mi

41.8

Median age

$159,637

Median household income

$116,734

Per capita income

$2,000,000

Median home value

$3,331

Median monthly rent

22.4%

Home ownership

6.4%

Poverty rate

1.2%

Unemployment

787

Housing units

81.1%

Bachelor's or higher

Age distribution

Male Female

128

Under 5

157

108

5–9

132

10–14

15–19

20–24

400

25–34

489

300

35–44

367

184

45–54

225

143

55–59

174

60–64

119

65–74

145

151

75–84

184

259

85+

318

← Male

Female →

Age summary

Group	Count	%
Under 18	771	17.2%
18 and over	3,718	82.8%
65 and over	1,176	26.2%
Median age	41.8 years

Race & ethnicity

White 57.7%

Asian 15.8%

Two or more races 10.4%

Hispanic or Latino 9.3%

Other race 4.9%

Black or African American 0.9%

American Indian / Alaska Native 0.5%

Native Hawaiian / Pacific Islander 0.4%

Group	Count	%
White	2,855	57.7%
Asian	780	15.8%
Two or more races	517	10.4%
Hispanic or Latino	459	9.3%
Other race	243	4.9%
Black or African American	47	0.9%
American Indian / Alaska Native	25	0.5%
Native Hawaiian / Pacific Islander	22	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	13.9%	19.3%	32.6%
$50k – $100k	23.3%	19.7%	27.7%
$100k – $200k	27.4%	31.0%	26.4%
Over $200k	35.4%	30.0%	13.3%

Under $10k 3.1%

$10k–$15k 2.4%

$15k–$25k 3.4%

$25k–$35k 1.3%

$35k–$50k 3.2%

$50k–$75k 11.1%

$75k–$100k 7.4%

$100k–$150k 14.8%

$150k–$200k 13.2%

$200k+ 40.0%

Range	% of households
Under $10k	3.1%
$10k–$15k	2.4%
$15k–$25k	3.4%
$25k–$35k	1.3%
$35k–$50k	3.2%
$50k–$75k	11.1%
$75k–$100k	7.4%
$100k–$150k	14.8%
$150k–$200k	13.2%
$200k+	40.0%
Median income	$159,637

Housing

Home values

$1M+ 100.0%

Housing overview

Metric	Value
Median home value	$2,000,000
Median rent / month	$3,331
Owner occupied	22.4%
Renter occupied	77.6%
Vacant	14.0%
Single-family detached	13.1%
Large apartment buildings	65.3%
Mobile homes	0.0%
Median rooms	3.8
Avg household size (owned)	2.47

Year built

Era	%
2020 or later	0.0%
2010–2019	9.0%
2000–2009	35.5%
1990–1999	13.1%
1980–1989	10.4%
1970–1979	16.3%
1960–1969	13.7%
1950–1959	1.7%
1940–1949	0.3%
1939 or earlier	0.0%

Bedrooms

Size	% of units
No bedroom (studio)	5.5%
1 bedroom	28.8%
2 bedrooms	50.6%
3 bedrooms	9.1%
4 bedrooms	3.5%
5+ bedrooms	2.6%

Vehicles per household

Vehicles	% of households
No vehicle	9.7%
1 vehicle	65.5%
2 vehicles	20.2%
3 or more	4.5%

Heating fuel

Fuel type	%
Utility gas	23.2%
Electricity	72.7%
Propane / LP gas	0.3%
No fuel used	3.3%

Households & families

Household type	Count	%
Married-couple family	982	48.3%
Cohabiting couple	47	2.3%
Male householder, no spouse	324	15.9%
Female householder, no spouse	682	33.5%
Households with children under 18	453	22.3%
Households with seniors (65+)	753	37.0%
Average household size	2.08

Marital status

Status	Male	Female
Never married	34.3%	14.4%
Married	56.3%	52.5%
Separated	2.1%	0.0%
Widowed	2.5%	19.0%
Divorced	4.9%	14.1%

Education

Less than 9th grade 1.1%

Some HS, no diploma 0.4%

HS graduate 6.4%

Some college, no degree 9.1%

Associate's degree 1.8%

Bachelor's degree 22.0%

Graduate / professional 59.1%

Metric	%
HS diploma or higher	98.5%
Bachelor's or higher	81.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	83	9.1%
Kindergarten	47	5.2%
Elementary school	314	34.5%
High school	162	17.8%
College / grad school	303	33.3%

Employment

Industry of employment

Education & healthcare 66.1%

Professional & management 15.3%

Finance & real estate 4.1%

Manufacturing 3.4%

Information 3.1%

Retail trade 2.7%

Arts, food & hospitality 2.1%

Public administration 1.9%

Transportation & utilities 0.7%

Other services 0.6%

Occupation

Category	%
Management, business & arts	82.1%
Service	6.4%
Sales & office	5.9%
Natural resources & construction	0.0%
Production & transportation	5.6%

Employment type

Type	%
Private sector	86.9%
Government	9.8%
Self-employed	3.4%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	37.7%
Carpool	0.9%
Public transit	1.4%
Walk	19.0%
Work from home	14.9%
Other means	26.0%
Avg commute (minutes)	17.8

Poverty

All people 6.4%

Under 18 years 11.3%

18 and over 5.3%

Married-couple families 0.0%

Female-led households 16.0%

Income support

Source	% of households
Social Security	30.8%
Retirement income	23.3%
Supplemental Security	0.5%
Cash public assistance	2.1%
Food stamps / SNAP	0.3%

Health indicators

Condition	%
Obesity	17.5%
High blood pressure	25.5%
High cholesterol	28.8%
Diabetes	7.0%
Heart disease	5.6%
Stroke	2.4%
Asthma	7.4%
Arthritis	19.7%
Kidney disease	2.6%
Pulmonary disease	3.5%
Cancer	8.6%

Behavior / access	%
Smoking	4.8%
Binge drinking	15.9%
No physical activity	13.0%
Less than 7 hrs sleep	23.3%
Depression	12.3%
Fair or poor health	7.4%
Poor mental health	9.5%
Poor physical health	6.1%
No health insurance	4.9%
Visited doctor (checkup)	68.2%
Visited dentist	75.4%
Cholesterol screening	93.8%
Teeth loss	4.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	100	2.7%

Disability	%
Any disability	11.9%
Under 18	1.6%
18–64 years	9.8%
65 and over	24.9%

Health insurance coverage

Type	%
Private insurance	84.9%
Public insurance	28.9%
No insurance	0.8%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	4,204	93.7%
Spanish	272	6.5%
Other Indo-European	45	1.1%
Asian & Pacific Islander	70	1.7%
Other languages	150	3.6%

Place of birth & citizenship

Origin	Count	%
Native born (US)	2,908	64.8%
Born in same state	2,706	60.3%
Born in different state	1,676	37.3%
Foreign born	202	4.5%
Naturalized citizen	1,581	35.2%
Not a US citizen	737	46.6%

Ancestry

Ancestry	Count	%
French	337	7.5%
Italian	257	5.7%
Arab	123	2.7%
German	58	1.3%
English	32	0.7%

Ancestry	Count	%
Polish	21	0.5%
Dutch	14	0.3%
Norwegian	9	0.2%
Irish	8	0.2%

Technology access

Metric	% of households
Computer access	45.3%
Internet access	96.7%

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

Frequently asked questions about ZIP code 94304

What city is ZIP code 94304 in?

ZIP code 94304 is primarily assigned to Palo Alto, California.

What county is ZIP code 94304 in?

ZIP code 94304 falls within Santa Clara County, California.

How educated is the population of ZIP code 94304?

81% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Is ZIP code 94304 mostly rentals?

78% of occupied units in ZIP code 94304 are renter-occupied.

Does ZIP code 94304 have an older population?

26% of residents in ZIP code 94304 are 65 or older, above the national average of ~17%.

What is the median household income in ZIP code 94304?

The median household income in ZIP code 94304 is $159,637, above the national median of ~$75,000.

What timezone is ZIP code 94304 in?

ZIP code 94304 observes the PST timezone.