94920 ZIP Code — Belvedere Tiburon, CA

Marin County, California

ZIP code 94920 is located in Belvedere Tiburon, California, within Marin County. It covers approximately 6.51 square miles and serves a population of 12,906 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 415/628.

About ZIP code 94920

The housing stock consists of a mix of housing types. Most homes were built in the 1960s, giving the area an established character. Median home value is $2,000,000. Owner-occupancy sits near the national average at 70%.

The gap between median ($216,096) and mean household income suggests income inequality — a small number of higher earners pull the average up. The poverty rate of 2% is below the national average. 34% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. The average commute of 31 minutes is near the national average. Remote work is prevalent — 37% of workers work from home.

Educational attainment is high — 79% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 94920 reflects a community defined by a highly educated population, a high rate of remote workers, and a significant Social Security-dependent population.

12,906

population

6.51

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

94920 ZIP code map

Cities in ZIP code 94920

Below are the cities the US Postal Service accepts for ZIP code 94920. Using any city not on this list may result in mail delivery delays.

City	Status
Belvedere Tiburon	Acceptable
Belvedere Tiburon	Preferred

Nearby ZIP codes

94925 Corte Madera (3.6 mi) 94974 San Quentin (3.9 mi) 94965 Sausalito (4.6 mi) 94939 Larkspur (5 mi) 94941 Mill Valley (5.7 mi) 94133 San Francisco (5.8 mi) 94123 San Francisco (6 mi) 94129 San Francisco (6.1 mi) 94901 San Rafael (6.3 mi) 94901 San Rafael (6.3 mi) 94109 San Francisco (6.6 mi) 94801 Richmond (6.7 mi)

Demographics updated 06/2026

Population
Total population	12,906
Population density	1,982 / sq mi
State FIPS	06
County FIPS	041

Geography
Land area	6.51 sq mi
Water area	5.69 sq mi
Latitude	37.8865
Longitude	-122.4628
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	13.5%	21.4%	32.6%
$50k – $100k	13.9%	21.0%	27.7%
$100k – $200k	23.2%	27.8%	26.4%
Over $200k	49.5%	29.8%	13.3%

Demographics & statistics

12,906

Population

1,982

People per sq mi

49.9

Median age

$216,096

Median household income

$144,758

Per capita income

$2,000,000

Median home value

$3,501

Median monthly rent

69.6%

Home ownership

2.2%

Poverty rate

7.8%

Unemployment

4,020

Housing units

79.3%

Bachelor's or higher

Age distribution

Male Female

190

Under 5

191

310

5–9

313

441

10–14

446

443

15–19

448

230

20–24

233

327

25–34

331

739

35–44

746

1,169

45–54

1,181

529

55–59

535

431

60–64

435

818

65–74

826

551

75–84

556

242

85+

245

← Male

Female →

Age summary

Group	Count	%
Under 18	2,504	19.4%
18 and over	10,402	80.6%
65 and over	3,238	25.1%
Median age	49.9 years

Race & ethnicity

White 78.9%

Asian 8.3%

Two or more races 7.3%

Hispanic or Latino 4%

Other race 0.8%

Black or African American 0.5%

American Indian / Alaska Native 0.3%

Group	Count	%
White	10,598	78.9%
Asian	1,117	8.3%
Two or more races	977	7.3%
Hispanic or Latino	533	4%
Other race	102	0.8%
Black or African American	66	0.5%
American Indian / Alaska Native	46	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	13.5%	21.4%	32.6%
$50k – $100k	13.9%	21.0%	27.7%
$100k – $200k	23.2%	27.8%	26.4%
Over $200k	49.5%	29.8%	13.3%

Under $10k 1.6%

$10k–$15k 0.9%

$15k–$25k 1.5%

$25k–$35k 3.3%

$35k–$50k 4.0%

$50k–$75k 4.6%

$75k–$100k 4.3%

$100k–$150k 17.1%

$150k–$200k 10.1%

$200k+ 52.5%

Range	% of households
Under $10k	1.6%
$10k–$15k	0.9%
$15k–$25k	1.5%
$25k–$35k	3.3%
$35k–$50k	4.0%
$50k–$75k	4.6%
$75k–$100k	4.3%
$100k–$150k	17.1%
$150k–$200k	10.1%
$200k+	52.5%
Median income	$216,096

Housing

Home values

Under $50k 1.7%

$150k–$200k 0.5%

$200k–$300k 0.2%

$300k–$500k 1.5%

$500k–$1M 3.4%

$1M+ 92.7%

Housing overview

Metric	Value
Median home value	$2,000,000
Median rent / month	$3,501
Owner occupied	69.6%
Renter occupied	30.4%
Vacant	7.8%
Single-family detached	68.0%
Large apartment buildings	4.7%
Mobile homes	0.0%
Median rooms	6.4
Avg household size (owned)	2.65

Year built

Era	%
2020 or later	0.0%
2010–2019	1.9%
2000–2009	3.8%
1990–1999	6.7%
1980–1989	10.1%
1970–1979	20.7%
1960–1969	25.9%
1950–1959	21.0%
1940–1949	2.6%
1939 or earlier	7.3%

Bedrooms

Size	% of units
No bedroom (studio)	3.0%
1 bedroom	6.9%
2 bedrooms	21.1%
3 bedrooms	29.2%
4 bedrooms	28.1%
5+ bedrooms	11.7%

Vehicles per household

Vehicles	% of households
No vehicle	0.7%
1 vehicle	27.4%
2 vehicles	43.8%
3 or more	28.1%

Heating fuel

Fuel type	%
Utility gas	75.5%
Electricity	19.2%
Propane / LP gas	1.8%
Fuel oil	0.8%
Solar	2.6%

Households & families

Household type	Count	%
Married-couple family	3,310	64.3%
Cohabiting couple	172	3.3%
Male householder, no spouse	540	10.5%
Female householder, no spouse	1,122	21.8%
Households with children under 18	1,583	30.8%
Households with seniors (65+)	2,114	41.1%
Average household size	2.50

Marital status

Status	Male	Female
Never married	25.1%	19.7%
Married	65.6%	60.1%
Separated	0.4%	0.6%
Widowed	3.2%	9.7%
Divorced	5.6%	9.9%

Education

Less than 9th grade 0.4%

Some HS, no diploma 0.7%

HS graduate 4.2%

Some college, no degree 11.2%

Associate's degree 4.2%

Bachelor's degree 40.3%

Graduate / professional 39.0%

Metric	%
HS diploma or higher	98.8%
Bachelor's or higher	79.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	225	7.5%
Kindergarten	71	2.4%
Elementary school	1,128	37.8%
High school	821	27.5%
College / grad school	740	24.8%

Employment

Industry of employment

Professional & management 29.4%

Finance & real estate 26.7%

Education & healthcare 13.8%

Retail trade 4.9%

Arts, food & hospitality 4.9%

Construction 4.8%

Transportation & utilities 3.3%

Other services 3.3%

Information 2.6%

Manufacturing 2.5%

Wholesale trade 2.2%

Public administration 1.2%

Agriculture & mining 0.3%

Occupation

Category	%
Management, business & arts	66.5%
Service	5.0%
Sales & office	23.1%
Natural resources & construction	2.7%
Production & transportation	2.6%

Employment type

Type	%
Private sector	75.9%
Government	6.1%
Self-employed	17.9%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	42.2%
Carpool	6.9%
Public transit	10.6%
Walk	1.6%
Work from home	37.1%
Other means	1.6%
Avg commute (minutes)	30.6

Poverty

All people 2.2%

Under 18 years 0.6%

18 and over 2.6%

Married-couple families 0.5%

Female-led households 7.0%

Income support

Source	% of households
Social Security	34.3%
Retirement income	26.7%
Supplemental Security	2.7%
Cash public assistance	0.2%
Food stamps / SNAP	2.0%

Health indicators

Condition	%
Obesity	22.3%
High blood pressure	28.7%
High cholesterol	34.1%
Diabetes	8.7%
Heart disease	6.1%
Stroke	2.5%
Asthma	8.9%
Arthritis	25.6%
Kidney disease	2.8%
Pulmonary disease	4.9%
Cancer	9.3%

Behavior / access	%
Smoking	6.4%
Binge drinking	15.3%
No physical activity	12.3%
Less than 7 hrs sleep	24.5%
Depression	15.5%
Fair or poor health	8.8%
Poor mental health	10.3%
Poor physical health	7.6%
No health insurance	4.6%
Visited doctor (checkup)	70.7%
Visited dentist	79.1%
Cholesterol screening	96.1%
Teeth loss	4.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	426	4.1%

Disability	%
Any disability	7.6%
Under 18	1.2%
18–64 years	3.2%
65 and over	22.3%

Health insurance coverage

Type	%
Private insurance	87.4%
Public insurance	28.1%
No insurance	1.8%
Uninsured under 19	0.0%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	12,525	97.0%
Spanish	655	5.2%
Other Indo-European	43	0.3%
Asian & Pacific Islander	335	2.7%
Other languages	251	2.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	9,922	76.9%
Born in same state	9,658	74.8%
Born in different state	5,330	41.3%
Foreign born	264	2.0%
Naturalized citizen	2,984	23.1%
Not a US citizen	1,664	55.8%

Ancestry

Ancestry	Count	%
French	2,047	15.9%
Italian	1,242	9.6%
Polish	304	2.4%
Arab	269	2.1%
English	264	2%

Ancestry	Count	%
Dutch	114	0.9%
Irish	57	0.4%
Norwegian	56	0.4%
German	12	0.1%

Technology access

Metric	% of households
Computer access	39.9%
Internet access	99.7%

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

Frequently asked questions about ZIP code 94920

What city is ZIP code 94920 in?

ZIP code 94920 is primarily assigned to Belvedere Tiburon, California.

What county is ZIP code 94920 in?

ZIP code 94920 falls within Marin County, California.

How educated is the population of ZIP code 94920?

79% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Does ZIP code 94920 have an older population?

25% of residents in ZIP code 94920 are 65 or older, above the national average of ~17%.

What is the median household income in ZIP code 94920?

The median household income in ZIP code 94920 is $216,096, above the national median of ~$75,000.

What is the typical home value in ZIP code 94920?

The median home value in ZIP code 94920 is $2,000,000.

What timezone is ZIP code 94920 in?

ZIP code 94920 observes the PST timezone.