San Geronimo, CA · standard
ZIP Code 94963
Marin County, California - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 569
- 83/sq mi Moderate-density area
- $210,823
- Median income Above-median income area
- $1,156,300
- Median home value Above-median home value
- 85.3%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
San Geronimo pairs a top-decile household income with top-decile home values, in a rural, homeowner-dominated area.
- Top 1%
- household income, US ZIPs
- Top 2%
- home value, US ZIPs
- 83
- people per sq mi
- 92%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 94963 against every reporting US ZIP.
ZIP code 94963 is a sparsely populated ZIP (a standard USPS delivery area) in San Geronimo, Marin County, California, home to just 569 residents across 6.9 square miles, a density of 83 people per square mile, in the Los Angeles time zone.
ZIP 94963 skews affluent, with a median household income of $210,823 (107% above the average California ZIP), while per-capita income is $78,648. Both reported hardship measures are comparatively low in absolute terms: poverty is 0.0% and unemployment is 0.0%. Housing is both higher-cost and owner-heavy: median home value is $1,156,300 (50% above the average California ZIP), while 91.6% of occupied homes are owner-occupied.
This is a highly-educated ZIP: 85.3% of adults hold a bachelor's degree or higher, the median age is 46.1, and the average commute is -. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Marin County, so 94963 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 →
Top industries in ZIP 94963
Top 5 sectors by establishment count in San Geronimo, CA
Which industries have the most business establishments in ZIP 94963.
- Health care and social assistance
Health care and social assistance
8 establishments
- Construction 3
Construction
3 establishments
- Real estate and rental and leasing 3
Real estate and rental and leasing
3 establishments
- Professional, scientific, and technical services 3
Professional, scientific, and technical services
3 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
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 94963, San Geronimo, 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
569
Population
6.9
Area (sq mi)
83
People / sq mi
Los Angeles
Time Zone
standard
ZIP Type
Who lives in ZIP 94963?
46.1
Median Age
56.7%
Male
43.3%
Female
22.2%
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?
$210,823
Median Household Income
+107% vs state ZIP avg
$78,648
Per Capita Income
0.0%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 94963 ranks among California ZIPs
San Geronimo, 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)
$210,823 Top 3% higher than 97% 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
239housing units
239
Total Housing Units
239
Occupied Units
0
Vacant Units
3.08
Avg Household Size
Occupancy Type
$1,156,300
Median Home Value
+50% vs state ZIP avg
1966
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What businesses operate in this ZIP?
Census Bureau data shows 21 business establishments in ZIP 94963, employing approximately 133 people with a combined annual payroll of $6,463,000.
21
Businesses
133
Employees
$6.5M
Annual Payroll
4
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Health care and social assistance | 8 | 38.1% |
| Construction | 3 | 14.3% |
| Real estate and rental and leasing | 3 | 14.3% |
| Professional, scientific, and technical services | 3 | 14.3% |
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 94963 vs 94933 →
ZIP 94963 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 94963 ranks #0 by population - useful context the national average alone can't give.
ZIP 94963 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 94963 ranks #2 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 94933 | Forest Knolls, CA | 865 | 0.9 mi |
| 94973 | Woodacre, CA | 1,429 | 1.7 mi |
| 94938 | Lagunitas, CA | 812 | 3.2 mi |
| 94946 | Nicasio, CA | 699 | 4.7 mi |
| 94950 | Olema, CA | 89 | 4.9 mi |
| 94930 | Fairfax, CA | 8,500 | 4.6 mi |
| 94960 | San Anselmo, CA | 15,740 | 5.2 mi |
| 94924 | Bolinas, CA | 1,638 | 5.5 mi |
| 94970 | Stinson Beach, CA | 683 | 7.0 mi |
| 94903 | San Rafael, CA | 29,040 | 6.5 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 94963, 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 94963 in?
ZIP code 94963 (San Geronimo) 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 94963?
ZIP code 94963 in San Geronimo, CA has a population of 569 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 94963?
The median household income in ZIP 94963 is $210,823, which is 176% above the national average of $76,288.
What is the average home value in ZIP 94963?
The median home value in ZIP 94963 is $1,156,300, which is 316% above the national average of $278,155.
What is the demographic makeup of ZIP 94963?
The largest racial group in ZIP 94963 is White at 85.3%. Hispanic or Latino residents make up 19.5% of the population.
How many businesses are in ZIP code 94963?
ZIP code 94963 has 21 business establishments employing approximately 133 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 94963?
The top industries by establishment count in ZIP 94963 are: Health care and social assistance (8), Construction (3), Real estate and rental and leasing (3). There are 4 industry sectors represented in total.
What is the education level in ZIP code 94963?
In ZIP code 94963, 85.3% of residents aged 25+ have a high school diploma or higher, and 85.3% 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 94963?
In ZIP code 94963, approximately 91.6% of occupied housing units are owner-occupied and 8.4% are renter-occupied, based on Census ACS 2023 data.
Related
Take this with you
What to do with ZIP 94963's numbers, next.
- See how ZIP 94963 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where San Geronimo, CA ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
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ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.