PlainZIP

Forest Knolls, CA · standard

ZIP Code 94933

Marin County, California - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

865
305/sq mi
$133,006
Median income
$862,100
Median home value
52.6%
Bachelor's or higher

The verdict

Forest Knolls pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.

Top 6%
household income, US ZIPs
Top 4%
home value, US ZIPs
305
people per sq mi
78%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 94933 against every reporting US ZIP.

ZIP code 94933 is a sparsely populated ZIP (a standard USPS delivery area) in Forest Knolls, Marin County, California, home to just 865 residents across 2.8 square miles, a density of 305 people per square mile, in the Los Angeles time zone.

ZIP 94933 skews affluent, with a median household income of $133,006 (31% above the California average), while per-capita income is $85,793. 4.4% of residents live below the poverty line, and the unemployment rate reads 0.0%. On housing, the median home value is $862,100 (12% above the state average) with median rent at - per month, and 78.2% of occupied units are owner-occupied.

This is a highly-educated ZIP: 52.6% of adults hold a bachelor's degree or higher, the median age is 62.2, and the average commute is -. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Marin County, so you can benchmark 94933 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 94933, Forest Knolls, CA · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

865

Population

2.8

Area (sq mi)

305

People / sq mi

Los Angeles

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 94933?

62.2

Median Age

58.7%

Male

41.3%

Female

8.5%

Foreign-Born

White 58.9%
African American 5.6%
Asian 8.6%
American Indian or Alaska Native 3.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 23.4%
Hispanic or Latino 15.9%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$133,006

Median Household Income

+31% vs state

$85,793

Per Capita Income

4.4%

Poverty Rate

0.0%

Unemployment Rate

How ZIP 94933 ranks nationally

Forest Knolls, CA household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$133,006 Top 6% higher than 94% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Below this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Below this entry. $120,000–$140,000: 1,362 US ZIPs (4%). This entry sits in this band. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 60.2%
Bachelor's Degree or Higher 52.6%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

601

Total Housing Units

563

Occupied Units

38

Vacant Units

1.78

Avg Household Size

Occupancy Type

Owner 78.2%
Renter 21.8%

$862,100

Median Home Value

+12% vs state

1954

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 13 business establishments in ZIP 94933, employing approximately 68 people with a combined annual payroll of $4,720,000.

13

Businesses

68

Employees

$4.7M

Annual Payroll

1

Industry Sectors

Industry Establishments % of Total
Construction 3 23.1%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 94933 vs 94963 →

ZIP 94933 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 94933 ranks #6 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 94933 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 94933 ranks #7 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
94963 San Geronimo, CA 569 0.9 mi
94973 Woodacre, CA 1,429 2.6 mi
94938 Lagunitas, CA 812 2.4 mi
94946 Nicasio, CA 699 4.6 mi
94950 Olema, CA 89 4.0 mi
94924 Bolinas, CA 1,638 5.0 mi
94930 Fairfax, CA 8,500 5.2 mi
94960 San Anselmo, CA 15,740 6.1 mi
94970 Stinson Beach, CA 683 7.1 mi
94903 San Rafael, CA 29,040 7.4 mi

More ZIP Codes in Marin County

94901 standard
San Rafael, CA
Pop: 41,157
94941 standard
Mill Valley, CA
Pop: 30,496
94903 standard
San Rafael, CA
Pop: 29,040
94947 standard
Novato, CA
Pop: 24,283
94949 standard
Novato, CA
Pop: 17,202
94945 standard
Novato, CA
Pop: 17,167

Related Areas

Marin County Forest Knolls, CA California

Frequently Asked Questions

What county is ZIP code 94933 in? ▼
ZIP code 94933 (Forest Knolls) is located in Marin County, California. Marin County contains multiple ZIP codes, see the full list at /counties/marin-ca.
What is the population of ZIP code 94933? ▼
ZIP code 94933 in Forest Knolls, CA has a population of 865 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 94933? ▼
The median household income in ZIP 94933 is $133,006, which is 74% above the national average of $76,288.
What is the average home value in ZIP 94933? ▼
The median home value in ZIP 94933 is $862,100, which is 210% above the national average of $278,155.
What is the demographic makeup of ZIP 94933? ▼
The largest racial group in ZIP 94933 is White at 58.9%. Hispanic or Latino residents make up 15.9% of the population.
How many businesses are in ZIP code 94933? ▼
ZIP code 94933 has 13 business establishments employing approximately 68 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 94933? ▼
In ZIP code 94933, 60.2% of residents aged 25+ have a high school diploma or higher, and 52.6% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 94933? ▼
In ZIP code 94933, approximately 78.2% of occupied housing units are owner-occupied and 21.8% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 94933? ▼
The poverty rate in ZIP code 94933 is 4.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.