94903 ZIP Code — San Rafael, CA

Marin County, California

ZIP code 94903 is located in San Rafael, California, within Marin County. It covers approximately 19.89 square miles and serves a population of 31,582 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 415/628.

About ZIP code 94903

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 $1,107,500. Owner-occupancy sits near the national average at 65%.

The gap between median ($131,172) 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. 42% 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 28 minutes is near the national average. Remote work is prevalent — 24% of workers work from home.

Educational attainment is high — 54% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 94903 reflects a community defined by a highly educated population, a high rate of remote workers, and a significant Social Security-dependent population.

31,582

population

19.89

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

94903 ZIP code map

Cities in ZIP code 94903

Below are the cities the US Postal Service accepts for ZIP code 94903. Using any city not on this list may result in mail delivery delays.

City	Status
San Rafael	Acceptable
San Rafael	Preferred

Nearby ZIP codes

94960 San Anselmo (3.2 mi) 94949 Novato (3.2 mi) 94901 San Rafael (4.1 mi) 94901 San Rafael (4.1 mi) 94998 Novato (6 mi) 94939 Larkspur (6 mi) 94974 San Quentin (6.5 mi) 94930 Fairfax (7 mi) 94925 Corte Madera (7.2 mi) 94945 Novato (7.4 mi) 94947 Novato (7.8 mi) 94946 Nicasio (8.9 mi)

Demographics updated 06/2026

Population
Total population	31,582
Population density	1,588 / sq mi
State FIPS	06
County FIPS	041

Geography
Land area	19.89 sq mi
Water area	0.68 sq mi
Latitude	38.0240
Longitude	-122.5400
Timezone	Pacific (PT)
Area code	415/628

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	23.6%	21.4%	32.6%
$50k – $100k	23.1%	21.0%	27.7%
$100k – $200k	29.3%	27.8%	26.4%
Over $200k	24.1%	29.8%	13.3%

Demographics & statistics

31,582

Population

1,588

People per sq mi

48.8

Median age

$131,172

Median household income

$70,546

Per capita income

$1,107,500

Median home value

$2,776

Median monthly rent

64.8%

Home ownership

6.4%

Poverty rate

6.3%

Unemployment

8,471

Housing units

54.1%

Bachelor's or higher

Age distribution

Male Female

439

Under 5

497

686

5–9

775

739

10–14

836

986

15–19

1,114

759

20–24

857

1,557

25–34

1,760

1,424

35–44

1,608

2,208

45–54

2,494

1,137

55–59

1,284

1,094

60–64

1,236

1,708

65–74

1,930

1,321

75–84

1,493

770

85+

870

← Male

Female →

Age summary

Group	Count	%
Under 18	5,044	16.0%
18 and over	26,538	84.0%
65 and over	8,092	25.6%
Median age	48.8 years

Race & ethnicity

White 59.6%

Hispanic or Latino 13.6%

Two or more races 10.4%

Other race 7%

Asian 6.4%

Black or African American 2.6%

American Indian / Alaska Native 0.3%

Native Hawaiian / Pacific Islander 0.1%

Group	Count	%
White	21,772	59.6%
Hispanic or Latino	4,975	13.6%
Two or more races	3,796	10.4%
Other race	2,554	7%
Asian	2,353	6.4%
Black or African American	945	2.6%
American Indian / Alaska Native	110	0.3%
Native Hawaiian / Pacific Islander	52	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	23.6%	21.4%	32.6%
$50k – $100k	23.1%	21.0%	27.7%
$100k – $200k	29.3%	27.8%	26.4%
Over $200k	24.1%	29.8%	13.3%

Under $10k 4.2%

$10k–$15k 2.3%

$15k–$25k 4.5%

$25k–$35k 2.9%

$35k–$50k 5.8%

$50k–$75k 11.1%

$75k–$100k 9.9%

$100k–$150k 16.4%

$150k–$200k 12.9%

$200k+ 30.0%

Range	% of households
Under $10k	4.2%
$10k–$15k	2.3%
$15k–$25k	4.5%
$25k–$35k	2.9%
$35k–$50k	5.8%
$50k–$75k	11.1%
$75k–$100k	9.9%
$100k–$150k	16.4%
$150k–$200k	12.9%
$200k+	30.0%
Median income	$131,172

Housing

Home values

Under $50k 1.1%

$50k–$100k 0.2%

$100k–$150k 1.0%

$150k–$200k 0.5%

$200k–$300k 1.6%

$300k–$500k 4.9%

$500k–$1M 30.0%

$1M+ 60.7%

Housing overview

Metric	Value
Median home value	$1,107,500
Median rent / month	$2,776
Owner occupied	64.8%
Renter occupied	35.2%
Vacant	3.9%
Single-family detached	60.1%
Large apartment buildings	17.3%
Mobile homes	1.7%
Median rooms	5.5
Avg household size (owned)	2.53

Year built

Era	%
2020 or later	1.0%
2010–2019	1.2%
2000–2009	4.6%
1990–1999	10.8%
1980–1989	7.9%
1970–1979	17.1%
1960–1969	26.6%
1950–1959	26.9%
1940–1949	3.1%
1939 or earlier	0.8%

Bedrooms

Size	% of units
No bedroom (studio)	2.3%
1 bedroom	14.1%
2 bedrooms	20.1%
3 bedrooms	34.7%
4 bedrooms	23.7%
5+ bedrooms	5.1%

Vehicles per household

Vehicles	% of households
No vehicle	9.1%
1 vehicle	34.4%
2 vehicles	37.1%
3 or more	19.3%

Heating fuel

Fuel type	%
Utility gas	69.3%
Electricity	28.0%
Propane / LP gas	1.5%
Wood	0.2%
Solar	0.7%
No fuel used	0.1%

Households & families

Household type	Count	%
Married-couple family	6,218	50.5%
Cohabiting couple	572	4.6%
Male householder, no spouse	1,192	9.7%
Female householder, no spouse	4,326	35.1%
Households with children under 18	3,010	24.5%
Households with seniors (65+)	5,639	45.8%
Average household size	2.44

Marital status

Status	Male	Female
Never married	33.1%	27.3%
Married	54.7%	43.7%
Separated	0.6%	2.1%
Widowed	2.2%	9.6%
Divorced	9.4%	17.3%

Education

Less than 9th grade 3.5%

Some HS, no diploma 4.5%

HS graduate 12.9%

Some college, no degree 16.8%

Associate's degree 8.2%

Bachelor's degree 32.7%

Graduate / professional 21.5%

Metric	%
HS diploma or higher	92.0%
Bachelor's or higher	54.1%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	205	3.2%
Kindergarten	390	6.1%
Elementary school	2,383	37.0%
High school	1,535	23.9%
College / grad school	1,919	29.8%

Employment

Industry of employment

Education & healthcare 22.3%

Professional & management 20.5%

Retail trade 11.9%

Arts, food & hospitality 8.6%

Transportation & utilities 6.2%

Finance & real estate 5.9%

Other services 5.1%

Construction 5.0%

Manufacturing 4.9%

Public administration 4.0%

Information 3.4%

Wholesale trade 1.5%

Agriculture & mining 0.8%

Occupation

Category	%
Management, business & arts	53.9%
Service	12.0%
Sales & office	22.8%
Natural resources & construction	3.3%
Production & transportation	7.9%

Employment type

Type	%
Private sector	76.5%
Government	11.4%
Self-employed	11.9%
Unpaid family workers	0.3%

Commute

Method	%
Drive alone	54.8%
Carpool	8.9%
Public transit	6.6%
Walk	4.1%
Work from home	23.9%
Other means	1.7%
Avg commute (minutes)	27.5

Poverty

All people 6.4%

Under 18 years 4.5%

18 and over 6.7%

Married-couple families 1.7%

Female-led households 10.5%

Income support

Source	% of households
Social Security	42.0%
Retirement income	30.8%
Supplemental Security	4.5%
Cash public assistance	1.7%
Food stamps / SNAP	4.1%

Health indicators

Condition	%
Obesity	22.9%
High blood pressure	28.1%
High cholesterol	31.7%
Diabetes	9.0%
Heart disease	6.3%
Stroke	2.8%
Asthma	9.1%
Arthritis	24.9%
Kidney disease	2.9%
Pulmonary disease	5.5%
Cancer	8.5%

Behavior / access	%
Smoking	8.3%
Binge drinking	16.2%
No physical activity	15.6%
Less than 7 hrs sleep	26.3%
Depression	15.8%
Fair or poor health	10.9%
Poor mental health	11.6%
Poor physical health	8.6%
No health insurance	7.6%
Visited doctor (checkup)	68.6%
Visited dentist	74.0%
Cholesterol screening	94.2%
Teeth loss	7.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,172	4.4%

Disability	%
Any disability	13.4%
Under 18	4.1%
18–64 years	8.0%
65 and over	32.1%

Health insurance coverage

Type	%
Private insurance	76.8%
Public insurance	35.0%
No insurance	6.3%
Uninsured under 19	3.9%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	30,646	97.0%
Spanish	3,312	10.8%
Other Indo-European	1,390	4.5%
Asian & Pacific Islander	456	1.5%
Other languages	532	1.7%

Place of birth & citizenship

Origin	Count	%
Native born (US)	24,969	79.1%
Born in same state	24,326	77.0%
Born in different state	15,465	49.0%
Foreign born	643	2.0%
Naturalized citizen	6,613	20.9%
Not a US citizen	3,540	53.5%

Ancestry

Ancestry	Count	%
Italian	4,254	13.5%
French	3,267	10.3%
Arab	876	2.8%
English	463	1.5%
Polish	415	1.3%

Ancestry	Count	%
Norwegian	183	0.6%
German	172	0.5%
Dutch	164	0.5%
Irish	107	0.3%

Technology access

Metric	% of households
Computer access	39.0%
Internet access	96.7%

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

Frequently asked questions about ZIP code 94903

What city is ZIP code 94903 in?

ZIP code 94903 is primarily assigned to San Rafael, California.

What county is ZIP code 94903 in?

ZIP code 94903 falls within Marin County, California.

Does ZIP code 94903 have an older population?

26% of residents in ZIP code 94903 are 65 or older, above the national average of ~17%.

How educated is the population of ZIP code 94903?

54% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Does ZIP code 94903 have a large retiree population?

42% of households in ZIP code 94903 receive Social Security income, suggesting a significant retiree or disability population.

What is the median household income in ZIP code 94903?

The median household income in ZIP code 94903 is $131,172, above the national median of ~$75,000.

What timezone is ZIP code 94903 in?

ZIP code 94903 observes the PST timezone.