94933 ZIP Code — Forest Knolls, CA

Marin County, California

ZIP code 94933 is located in Forest Knolls, California, within Marin County. It covers approximately 3.21 square miles and serves a population of 1,284 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 415/628.

About ZIP code 94933

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $866,400. Owner-occupancy sits near the national average at 68%.

Median household income is $116,953. 40% 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. An above-average commute of 37 minutes suggests many residents work outside the immediate area. Remote work is prevalent — 25% of workers work from home.

Educational attainment is high — 49% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 94933 reflects a community defined by a high rate of remote workers and a significant Social Security-dependent population.

1,284
population
3.21
sq mi land
Standard
ZIP type
Pacific (PT)
timezone
94933 ZIP code map
Cities in ZIP code 94933

Below are the cities the US Postal Service accepts for ZIP code 94933. Using any city not on this list may result in mail delivery delays.

City Status
Forest Knolls Acceptable
Demographics updated 06/2026
Population
Total population 1,284
Population density 400 / sq mi
State FIPS 06
County FIPS 041
Geography
Land area 3.21 sq mi
Water area 0.00 sq mi
Latitude 38.0084
Longitude -122.6913
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 23.4% 21.4% 32.6%
$50k – $100k 6.6% 21.0% 27.7%
$100k – $200k 54.5% 27.8% 26.4%
Over $200k 15.5% 29.8% 13.3%

Demographics & statistics

1,284
Population
400
People per sq mi
49.5
Median age
$116,953
Median household income
$59,749
Per capita income
$866,400
Median home value
$2,891
Median monthly rent
67.6%
Home ownership
17.4%
Poverty rate
0.0%
Unemployment
427
Housing units
49.2%
Bachelor's or higher

Age distribution

Male Female
38
Under 5
40
20
5–9
21
27
10–14
30
8
15–19
8
53
20–24
58
58
25–34
63
79
35–44
85
39
45–54
41
52
55–59
56
71
60–64
76
96
65–74
103
71
75–84
77
7
85+
7
← Male
Female →

Age summary

GroupCount%
Under 1819215.0%
18 and over1,09285.0%
65 and over36128.1%
Median age49.5 years

Race & ethnicity

White 53.1%
Hispanic or Latino 13.9%
Two or more races 12.2%
Other race 10.1%
Asian 5.4%
Black or African American 5.2%
GroupCount%
White79253.1%
Hispanic or Latino20713.9%
Two or more races18212.2%
Other race15110.1%
Asian815.4%
Black or African American785.2%

Household income

Income range This ZIP County avg State avg
Under $50k 23.4% 21.4% 32.6%
$50k – $100k 6.6% 21.0% 27.7%
$100k – $200k 54.5% 27.8% 26.4%
Over $200k 15.5% 29.8% 13.3%
Under $10k 2.2%
$10k–$15k 2.7%
$15k–$25k 2.5%
$25k–$35k 2.5%
$35k–$50k 6.4%
$50k–$75k 14.3%
$75k–$100k 10.8%
$100k–$150k 39.2%
$150k–$200k 5.4%
$200k+ 14.1%
Range% of households
Under $10k2.2%
$10k–$15k2.7%
$15k–$25k2.5%
$25k–$35k2.5%
$35k–$50k6.4%
$50k–$75k14.3%
$75k–$100k10.8%
$100k–$150k39.2%
$150k–$200k5.4%
$200k+14.1%
Median income$116,953

Housing

Home values

$300k–$500k 12.4%
$500k–$1M 55.0%
$1M+ 32.6%

Housing overview

MetricValue
Median home value$866,400
Median rent / month$2,891
Owner occupied67.6%
Renter occupied32.4%
Vacant4.0%
Single-family detached83.4%
Large apartment buildings0.0%
Mobile homes0.0%
Median rooms4.1
Avg household size (owned)2.08

Year built

Era%
2020 or later0.0%
2010–20190.0%
2000–20090.0%
1990–19995.6%
1980–19897.7%
1970–19794.2%
1960–196925.0%
1950–19593.1%
1940–19497.6%
1939 or earlier46.8%

Bedrooms

Size% of units
No bedroom (studio)2.6%
1 bedroom28.9%
2 bedrooms40.3%
3 bedrooms20.2%
4 bedrooms8.1%
5+ bedrooms0.0%

Vehicles per household

Vehicles% of households
No vehicle3.9%
1 vehicle37.0%
2 vehicles31.1%
3 or more28.1%

Heating fuel

Fuel type%
Utility gas7.1%
Electricity12.4%
Propane / LP gas56.3%
Wood19.7%

Households & families

Household typeCount%
Married-couple family16627.9%
Cohabiting couple498.2%
Male householder, no spouse22838.3%
Female householder, no spouse15225.5%
Households with children under 187412.4%
Households with seniors (65+)26845.0%
Average household size2.11

Marital status

StatusMaleFemale
Never married42.1%38.2%
Married34.6%32.9%
Separated10.0%1.2%
Widowed7.0%0.0%
Divorced6.3%27.7%

Education

Less than 9th grade 4.1%
Some HS, no diploma 1.5%
HS graduate 10.7%
Some college, no degree 21.8%
Associate's degree 12.6%
Bachelor's degree 32.2%
Graduate / professional 17.0%
Metric%
HS diploma or higher94.4%
Bachelor's or higher49.2%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool208.7%
Kindergarten104.3%
Elementary school8135.1%
High school2310.0%
College / grad school9742.0%

Employment

Industry of employment

Professional & management 27.6%
Education & healthcare 24.2%
Retail trade 13.4%
Construction 11.9%
Other services 11.4%
Arts, food & hospitality 6.4%
Finance & real estate 4.3%
Public administration 0.9%

Occupation

Category%
Management, business & arts64.9%
Service10.1%
Sales & office12.0%
Natural resources & construction8.6%
Production & transportation4.3%

Employment type

Type%
Private sector67.3%
Government6.1%
Self-employed26.6%
Unpaid family workers0.0%

Commute

Method%
Drive alone67.0%
Carpool0.7%
Public transit0.0%
Walk5.1%
Work from home24.5%
Other means2.6%
Avg commute (minutes)37.1

Poverty

All people 17.4%
Under 18 years 62.5%
18 and over 9.4%
Married-couple families 0.0%
Female-led households 0.0%

Income support

Source% of households
Social Security39.8%
Retirement income32.4%
Supplemental Security8.1%
Cash public assistance0.0%
Food stamps / SNAP0.0%

Health indicators

Condition%
Obesity26.9%
High blood pressure27.8%
High cholesterol32.2%
Diabetes9.2%
Heart disease5.6%
Stroke2.6%
Asthma10.2%
Arthritis24.6%
Kidney disease2.7%
Pulmonary disease6.1%
Cancer7.0%
Behavior / access%
Smoking10.7%
Binge drinking18.2%
No physical activity15.1%
Less than 7 hrs sleep28.1%
Depression18.3%
Fair or poor health11.6%
Poor mental health13.2%
Poor physical health9.7%
No health insurance6.4%
Visited doctor (checkup)67.2%
Visited dentist72.5%
Cholesterol screening94.2%
Teeth loss7.5%

Veterans & disability

VeteransCount%
Civilian veterans151.4%
Disability%
Any disability9.7%
Under 180.0%
18–64 years11.5%
65 and over11.4%

Health insurance coverage

Type%
Private insurance55.1%
Public insurance51.2%
No insurance5.8%
Uninsured under 193.6%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only1,20693.9%
Spanish131.1%
Other Indo-European131.1%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)1,15890.2%
Born in same state1,15189.6%
Born in different state83565.0%
Foreign born70.5%
Naturalized citizen1269.8%
Not a US citizen4233.3%

Ancestry

AncestryCount%
French17413.6%
Italian1259.7%
English443.4%
AncestryCount%
Arab201.6%
Dutch151.2%

Technology access

Metric% of households
Computer access46.3%
Internet access97.5%

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

Frequently asked questions about ZIP code 94933

What city is ZIP code 94933 in?

ZIP code 94933 is primarily assigned to Forest Knolls, California.

What county is ZIP code 94933 in?

ZIP code 94933 falls within Marin County, California.

Does ZIP code 94933 have an older population?

28% of residents in ZIP code 94933 are 65 or older, above the national average of ~17%.

What is the poverty rate in ZIP code 94933?

17% of residents in ZIP code 94933 live below the poverty line, above the national average.

How educated is the population of ZIP code 94933?

49% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

Does ZIP code 94933 have a large retiree population?

40% of households in ZIP code 94933 receive Social Security income, suggesting a significant retiree or disability population.

What timezone is ZIP code 94933 in?

ZIP code 94933 observes the PST timezone.

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