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 High-density area
- $133,006
- Median income Above-median income area
- $862,100
- Median home value Above-median home value
- 52.6%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
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 average California ZIP), while per-capita income is $85,793. Both reported hardship measures are comparatively low in absolute terms: poverty is 4.4% and unemployment is 0.0%. Median home value is $862,100 (12% above the average California ZIP); 78.2% of occupied homes 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 -. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Marin County, so 94933 can be compared with both its immediate and county-level context.
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
Who lives in ZIP 94933?
62.2
Median Age
58.7%
Male
41.3%
Female
8.5%
Foreign-Born
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 ZIP avg
$85,793
Per Capita Income
4.4%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 94933 ranks among California ZIPs
Forest Knolls, CA household income vs. every California ZIP code
Median household income among 1,583 reporting California ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$133,006 Top 20% higher than 80% of 1,583 California ZIPs
Each bar is a $20K-wide band; taller bars hold more California 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?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
601housing units
601
Total Housing Units
563
Occupied Units
38
Vacant Units
1.78
Avg Household Size
Occupancy Type
$862,100
Median Home Value
+12% vs state ZIP avg
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.
- 94903
San Rafael (94903)
29,040 residents
- 94960
San Anselmo (94960)
15,740 residents
- 94930 8,500
Fairfax (94930)
8,500 residents
- 94924 1,638
Bolinas (94924)
1,638 residents
- 94973 1,429
Woodacre (94973)
1,429 residents
- 94933 865
Forest Knolls (94933)
865 residents
- 94938 812
Lagunitas (94938)
812 residents
- 94946 699
Nicasio (94946)
699 residents
- 94970 683
Stinson Beach (94970)
683 residents
What this shows Among its immediate neighbors, ZIP 94933 ranks #6 by population - useful context the national average alone can't give.
ZIP 94933 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 94973
Woodacre (94973)
$231,094 median income
- 94963
San Geronimo (94963)
$210,823 median income
- 94960
San Anselmo (94960)
$185,170 median income
- 94946
Nicasio (94946)
$154,688 median income
- 94930
Fairfax (94930)
$145,362 median income
- 94903
San Rafael (94903)
$142,083 median income
- 94933
Forest Knolls (94933)
$133,006 median income
- 94970
Stinson Beach (94970)
$132,857 median income
- 94924
Bolinas (94924)
$101,458 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.
| 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 |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 94933, both outside CA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Marin County
Related Areas
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.
Related
Take this with you
What to do with ZIP 94933's numbers, next.
- See how ZIP 94933 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Forest Knolls, CA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.