San Rafael, CA · standard
ZIP Code 94903
Marin County, California - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 29,040
- 560/sq mi High-density area
- $142,083
- Median income Above-median income area
- $1,197,300
- Median home value Above-median home value
- 55.5%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
San Rafael pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.
- Top 5%
- household income, US ZIPs
- Top 1%
- home value, US ZIPs
- 560
- people per sq mi
- 66%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 94903 against every reporting US ZIP.
ZIP code 94903 is a densely settled ZIP (a standard USPS delivery area) in San Rafael, Marin County, California, with 29,040 residents across 51.9 square miles, a density of 560 people per square mile, in the Los Angeles time zone.
ZIP 94903 skews affluent, with a median household income of $142,083 (40% above the average California ZIP), while per-capita income is $77,317. The poverty rate is 6.9%, with unemployment at 6.3%; those measures add context to the income figure. Housing is both higher-cost and owner-heavy: median home value is $1,197,300 (55% above the average California ZIP), while 65.8% of occupied homes are owner-occupied and median rent is $2,993.
This is a highly-educated ZIP: 55.5% of adults hold a bachelor's degree or higher, the median age is 49.5, and the average commute is 27 minutes. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Marin County, so 94903 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 94903
Top 5 sectors by establishment count in San Rafael, CA
Which industries have the most business establishments in ZIP 94903.
- Health care and social assistance
Health care and social assistance
224 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
202 establishments
- Construction
Construction
139 establishments
- Finance and insurance 83
Finance and insurance
83 establishments
- Other services (except public administration) 80
Other services (except public administration)
80 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 94903, San Rafael, 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
29,040
Population
51.9
Area (sq mi)
560
People / sq mi
Los Angeles
Time Zone
standard
ZIP Type
Who lives in ZIP 94903?
49.5
Median Age
45.5%
Male
54.5%
Female
20.7%
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?
$142,083
Median Household Income
+40% vs state ZIP avg
$77,317
Per Capita Income
6.9%
Poverty Rate
6.3%
Unemployment Rate
27.0 min
Mean Commute Time
How ZIP 94903 ranks among California ZIPs
San Rafael, 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)
$142,083 Top 16% higher than 84% 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
12,665housing units
12,665
Total Housing Units
12,013
Occupied Units
652
Vacant Units
2.43
Avg Household Size
Occupancy Type
$1,197,300
Median Home Value
+55% vs state ZIP avg
$2,993
Median Rent
1968
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
+0.3%
YoY Change (2024)
270
HPI Index (2000 = 100)
+170%
Total Change Since 2000
Home values in ZIP 94903 have increased 0.3% over the past year (2024). Since 2000, this ZIP has seen +170% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | -1.4% | 211 |
| 2021 | +7.7% | 227 |
| 2022 | +8.3% | 246 |
| 2023 | +9.2% | 269 |
| 2024 | +0.3% | 270 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 1,144 business establishments in ZIP 94903, employing approximately 15,001 people with a combined annual payroll of $1,459,885,000.
1,144
Businesses
15,001
Employees
$1.5B
Annual Payroll
16
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Health care and social assistance | 224 | 19.6% |
| Professional, scientific, and technical services | 202 | 17.7% |
| Construction | 139 | 12.2% |
| Finance and insurance | 83 | 7.3% |
| Other services (except public administration) | 80 | 7.0% |
| Administrative and support and waste management and remediation services | 71 | 6.2% |
| Real estate and rental and leasing | 70 | 6.1% |
| Retail trade | 59 | 5.2% |
| Accommodation and food services | 57 | 5.0% |
| Educational services | 32 | 2.8% |
| Information | 30 | 2.6% |
| Wholesale trade | 27 | 2.4% |
| Arts, entertainment, and recreation | 22 | 1.9% |
| Manufacturing | 18 | 1.6% |
| Transportation and warehousing | 18 | 1.6% |
| Management of companies and enterprises | 11 | 1.0% |
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 94903 vs 94949 →
ZIP 94903 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 94901
San Rafael (94901)
41,157 residents
- 94903
San Rafael (94903)
29,040 residents
- 94949
Novato (94949)
17,202 residents
- 94945
Novato (94945)
17,167 residents
- 94960 15,740
San Anselmo (94960)
15,740 residents
- 94904 11,995
Greenbrae (94904)
11,995 residents
- 94930 8,500
Fairfax (94930)
8,500 residents
- 94939 6,859
Larkspur (94939)
6,859 residents
- 94973 1,429
Woodacre (94973)
1,429 residents
What this shows Among its immediate neighbors, ZIP 94903 ranks #2 by population - useful context the national average alone can't give.
ZIP 94903 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 94957
Ross (94957)
$250,000 median income
- 94973
Woodacre (94973)
$231,094 median income
- 94963
San Geronimo (94963)
$210,823 median income
- 94939
Larkspur (94939)
$203,988 median income
- 94960
San Anselmo (94960)
$185,170 median income
- 94904
Greenbrae (94904)
$169,118 median income
- 94930
Fairfax (94930)
$145,362 median income
- 94903
San Rafael (94903)
$142,083 median income
- 94949
Novato (94949)
$120,758 median income
What this shows By household income, ZIP 94903 ranks #8 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 94949 | Novato, CA | 17,202 | 2.9 mi |
| 94960 | San Anselmo, CA | 15,740 | 2.4 mi |
| 94957 | Ross, CA | 1,332 | 4.3 mi |
| 94904 | Greenbrae, CA | 11,995 | 5.5 mi |
| 94901 | San Rafael, CA | 41,157 | 4.1 mi |
| 94973 | Woodacre, CA | 1,429 | 4.8 mi |
| 94939 | Larkspur, CA | 6,859 | 6.1 mi |
| 94945 | Novato, CA | 17,167 | 7.1 mi |
| 94930 | Fairfax, CA | 8,500 | 5.3 mi |
| 94963 | San Geronimo, CA | 569 | 6.5 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 94903, both outside CA so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar population
Nearest cross-state ZIPs by resident population (29,040 here; floor ≥1,000).
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 94903 in?
ZIP code 94903 (San Rafael) 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 94903?
ZIP code 94903 in San Rafael, CA has a population of 29,040 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 94903?
The median household income in ZIP 94903 is $142,083, which is 86% above the national average of $76,288.
What is the average home value in ZIP 94903?
The median home value in ZIP 94903 is $1,197,300, which is 330% above the national average of $278,155.
What is the demographic makeup of ZIP 94903?
The largest racial group in ZIP 94903 is White at 66.9%. Hispanic or Latino residents make up 19.4% of the population.
How many businesses are in ZIP code 94903?
ZIP code 94903 has 1,144 business establishments employing approximately 15,001 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 94903?
The top industries by establishment count in ZIP 94903 are: Health care and social assistance (224), Professional, scientific, and technical services (202), Construction (139). There are 16 industry sectors represented in total.
How have home values changed in ZIP code 94903?
According to the FHFA House Price Index, home values in ZIP 94903 increased by 0.3% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 170%. This is a developmental index based on repeat sales and appraisal data from Fannie Mae and Freddie Mac.
What is the education level in ZIP code 94903?
In ZIP code 94903, 68.0% of residents aged 25+ have a high school diploma or higher, and 55.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What is the average commute time in ZIP 94903?
The mean commute time for workers in ZIP code 94903 is 27.0 minutes according to Census ACS data. The national average is roughly 26 minutes, so commuters here spend more time traveling to work than typical.
What percentage of residents own vs. rent in ZIP 94903?
In ZIP code 94903, approximately 65.8% of occupied housing units are owner-occupied and 34.2% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 94903?
The poverty rate in ZIP code 94903 is 6.9% 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 94903's numbers, next.
- See how ZIP 94903 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where San Rafael, 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.