Fairfax, CA · standard
ZIP Code 94930
Marin County, California - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 8,500
- 205/sq mi High-density area
- $145,362
- Median income Above-median income area
- $1,170,000
- Median home value Above-median home value
- 70.7%
- Bachelor's or higher Above-average bachelor's attainment
National ZIP placement
Fairfax pairs a top-decile household income with top-decile home values, in a low-density, homeowner-dominated area.
- Top 4%
- household income, US ZIPs
- Top 2%
- home value, US ZIPs
- 205
- people per sq mi
- 70%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 94930 against every reporting US ZIP.
FHFA HPI release change
What changed in the latest House Price Index year
- FHFA House Price Index values in ZIP 94930 (Fairfax, CA) rose +2.5% from 2023 to 2024. The all-transactions index moved from 291.1 in 2023 to 298.3 in 2024 (2000 = 100).
ZIP code 94930 is a mid-sized community (a standard USPS delivery area) in Fairfax, Marin County, California, home to 8,500 residents across 41.4 square miles, a density of 205 people per square mile, in the Los Angeles time zone.
ZIP 94930 skews affluent, with a median household income of $145,362 (43% above the average California ZIP), while per-capita income is $81,981. Unemployment is 10.6%, an important qualifier alongside the household-income figure. Housing is both higher-cost and owner-heavy: median home value is $1,170,000 (51% above the average California ZIP), while 69.8% of occupied homes are owner-occupied and median rent is $2,397.
This is a highly-educated ZIP: 70.7% of adults hold a bachelor's degree or higher, the median age is 48.2, and the average commute is 29 minutes. The page also surfaces 10 ZIP codes within roughly 10 miles and 6 more in Marin County, so 94930 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 94930
Top 5 sectors by establishment count in Fairfax, CA
Which industries have the most business establishments in ZIP 94930.
- Professional, scientific, and technical services
Professional, scientific, and technical services
56 establishments
- Construction
Construction
43 establishments
- Accommodation and food services
Accommodation and food services
33 establishments
- Retail trade
Retail trade
29 establishments
- Other services (except public administration) 22
Other services (except public administration)
22 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 94930, Fairfax, 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
8,500
Population
41.4
Area (sq mi)
205
People / sq mi
Los Angeles
Time Zone
standard
ZIP Type
Who lives in ZIP 94930?
48.2
Median Age
49.5%
Male
50.5%
Female
10.2%
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?
$145,362
Median Household Income
+43% vs state ZIP avg
$81,981
Per Capita Income
11.0%
Poverty Rate
10.6%
Unemployment Rate
28.8 min
Mean Commute Time
How ZIP 94930 ranks among California ZIPs
Fairfax, 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)
$145,362 Top 15% higher than 85% 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
3,729housing units
3,729
Total Housing Units
3,565
Occupied Units
164
Vacant Units
2.35
Avg Household Size
Occupancy Type
$1,170,000
Median Home Value
+51% vs state ZIP avg
$2,397
Median Rent
1954
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
+2.5%
YoY Change (2024)
298
HPI Index (2000 = 100)
+198%
Total Change Since 2000
Home values in ZIP 94930 have increased 2.5% over the past year (2024). Since 2000, this ZIP has seen +198% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | +0.3% | 211 |
| 2021 | +10.6% | 234 |
| 2022 | +8.8% | 255 |
| 2023 | +14.4% | 291 |
| 2024 | +2.5% | 298 |
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 273 business establishments in ZIP 94930, employing approximately 1,776 people with a combined annual payroll of $91,943,000.
273
Businesses
1,776
Employees
$91.9M
Annual Payroll
14
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Professional, scientific, and technical services | 56 | 20.5% |
| Construction | 43 | 15.8% |
| Accommodation and food services | 33 | 12.1% |
| Retail trade | 29 | 10.6% |
| Other services (except public administration) | 22 | 8.1% |
| Health care and social assistance | 17 | 6.2% |
| Arts, entertainment, and recreation | 15 | 5.5% |
| Administrative and support and waste management and remediation services | 14 | 5.1% |
| Real estate and rental and leasing | 13 | 4.8% |
| Information | 8 | 2.9% |
| Educational services | 7 | 2.6% |
| Manufacturing | 5 | 1.8% |
| Finance and insurance | 5 | 1.8% |
| Wholesale trade | 3 | 1.1% |
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 94930 vs 94957 →
ZIP 94930 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 94941
Mill Valley (94941)
30,496 residents
- 94903
San Rafael (94903)
29,040 residents
- 94960
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
- 94957 1,332
Ross (94957)
1,332 residents
- 94933 865
Forest Knolls (94933)
865 residents
What this shows Among its immediate neighbors, ZIP 94930 ranks #5 by population - useful context the national average alone can't give.
ZIP 94930 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
- 94941
Mill Valley (94941)
$209,870 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
What this shows By household income, ZIP 94930 ranks #8 of 9 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 94957 | Ross, CA | 1,332 | 2.7 mi |
| 94960 | San Anselmo, CA | 15,740 | 2.9 mi |
| 94904 | Greenbrae, CA | 11,995 | 3.1 mi |
| 94973 | Woodacre, CA | 1,429 | 3.6 mi |
| 94970 | Stinson Beach, CA | 683 | 4.0 mi |
| 94963 | San Geronimo, CA | 569 | 4.6 mi |
| 94939 | Larkspur, CA | 6,859 | 4.7 mi |
| 94903 | San Rafael, CA | 29,040 | 5.3 mi |
| 94933 | Forest Knolls, CA | 865 | 5.2 mi |
| 94941 | Mill Valley, CA | 30,496 | 5.6 mi |
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 94930, 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 (8,500 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 94930 in?
ZIP code 94930 (Fairfax) 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 94930?
ZIP code 94930 in Fairfax, CA has a population of 8,500 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 94930?
The median household income in ZIP 94930 is $145,362, which is 91% above the national average of $76,288.
What is the average home value in ZIP 94930?
The median home value in ZIP 94930 is $1,170,000, which is 321% above the national average of $278,155.
What is the demographic makeup of ZIP 94930?
The largest racial group in ZIP 94930 is White at 82.8%. Hispanic or Latino residents make up 6.5% of the population.
How many businesses are in ZIP code 94930?
ZIP code 94930 has 273 business establishments employing approximately 1,776 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What are the main industries in ZIP code 94930?
The top industries by establishment count in ZIP 94930 are: Professional, scientific, and technical services (56), Construction (43), Accommodation and food services (33). There are 14 industry sectors represented in total.
How have home values changed in ZIP code 94930?
According to the FHFA House Price Index, home values in ZIP 94930 increased by 2.5% in 2024. Since 2000, home values in this ZIP have appreciated by approximately 198%. 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 94930?
In ZIP code 94930, 77.6% of residents aged 25+ have a high school diploma or higher, and 70.7% 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 94930?
The mean commute time for workers in ZIP code 94930 is 28.8 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 94930?
In ZIP code 94930, approximately 69.8% of occupied housing units are owner-occupied and 30.2% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 94930?
The poverty rate in ZIP code 94930 is 11.0% 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 94930's numbers, next.
- See how ZIP 94930 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Fairfax, 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.