94930 ZIP Code, Fairfax, CA
94930 is a ZIP code in Fairfax, California in Marin County. It covers 14 square miles of land. The closest ZIP codes are 94960, 94957 and 94941. 8,406 people live here in 3,565 households. With about 590 people per square mile it is lightly settled, and owners and renters are mixed (70% own). Median household income is $145,362, above the California median of $99,122; the median age is 48.2, older than most ZIP codes.
Quick facts
- Mailing city: Fairfax, CA
- County: Marin County
- Land area: 14 sq mi
- Population: 8,406
- Median household income: $145,362
- Carrier routes: 7 (3,805 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 8,406 |
| Households | 3,565 |
| Median household income | $145,362 |
| Income per person | $81,981 |
| Median age | 48.2 |
| Homeowners | 69.8% |
| Median home value | $1,170,000 |
| Median rent | $2,397 |
| Bachelor's degree or higher | 70.7% |
| Average commute (minutes) | 28.8 |
| Households with kids under 18 | 25.5% |
| Moved in the past year | 9.2% |
| Below the poverty line | 11.0% |
| Broadband internet | 98.2% |
| Speak a non-English language at home | 9.9% |
Household income
| % of households | Value |
|---|---|
| <$10K | 5.7% |
| $10–15K | 2.5% |
| $15–25K | 2.6% |
| $25–35K | 8.0% |
| $35–50K | 4.2% |
| $50–75K | 9.8% |
| $75–100K | 4.8% |
| $100–150K | 13.3% |
| $150–200K | 11.6% |
| $200K+ | 37.4% |
Age
| % of all residents | Value |
|---|---|
| <10 | 7.4% |
| 10–19 | 12.8% |
| 20–24 | 4.0% |
| 25–34 | 9.8% |
| 35–44 | 10.8% |
| 45–54 | 19.7% |
| 55–64 | 13.5% |
| 65–74 | 14.0% |
| 75+ | 8.1% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 42.9% |
| Owned outright | 24.1% |
| Rented | 28.6% |
| Vacant | 4.4% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 69.6% |
| Townhome | 8.1% |
| 2–4 units | 11.3% |
| 5–19 units | 5.9% |
| 20+ units | 5.1% |
| Mobile / other | 0.0% |
Businesses in 94930
273 business establishments with 1,776 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 56
- Construction: 43
- Accommodation and Food Services: 33
- Retail Trade: 29
- Other Services (except Public Administration): 22
- Health Care and Social Assistance: 17
- Arts, Entertainment, and Recreation: 15
- Administrative and Support and Waste Management and Remediation Services: 14
EDDM carrier routes
94930 has 7 USPS carrier routes with 3,805 residential and 252 business mailboxes. Open the EDDM route map.
Carrier routes in 94930
94930 has 7 USPS carrier routes (7 city (C)) with 3,805 residential and 252 business mailboxes. Routes range from 420 homes (C028) to 646 homes (C026); the median route has 543 homes. The Census counted 3,565 households in 94930 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 2 |
| 500–749 | 5 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 94930 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C021 — USPS business mailboxes 119, 585 homes
- Route C028 — USPS business mailboxes 66, 420 homes
- Route C026 — USPS business mailboxes 33, 646 homes
- Route C023 — USPS business mailboxes 25, 470 homes
- Route C025 — USPS business mailboxes 6, 599 homes
Select these 5 routes on the route map
Every carrier route in 94930
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C021 | City | 585 | 119 | $114,068 | — | — | — |
| C022 | City | 543 | 2 | $114,068 | — | — | — |
| C023 | City | 470 | 25 | $145,087 | — | — | — |
| C024 | City | 542 | 1 | $106,129 | — | — | — |
| C025 | City | 599 | 6 | $114,068 | — | — | — |
| C026 | City | 646 | 33 | $145,087 | — | — | — |
| C028 | City | 420 | 66 | $145,087 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 94930 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 94960 — Sleepy Hollow CDP, CA (2.8 mi)
- 94957 — Ross town, CA (2.9 mi)
- 94941 — Mill Valley city, CA (3.2 mi)
- 94973 — Woodacre CDP, CA (3.2 mi)
- 94904 — Kentfield CDP, CA (3.8 mi)
- 94963 — San Geronimo CDP, CA (3.8 mi)
- 94970 — Stinson Beach CDP, CA (3.9 mi)
- 94903 — San Rafael city, CA (4.7 mi)
Areas that include 94930
- Fairfax, CA ZIP codes — 1 ZIP code
- Marin County ZIP codes — 29 ZIP codes
- California ZIP code data
Mail every home in 94930
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 94930, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 94930 in?
- 94930 is a Fairfax, CA mailing address. By land area, 16% lies inside Fairfax; the rest is outside any Census-defined city or community.
- What county is 94930 in?
- 94930 is in Marin County.
- What is the population of 94930?
- About 8,406 people (±255), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 8,729.
- What is the median household income in 94930?
- $145,362 (±$31,571), compared with $99,122 for California as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 94930?
- 7 USPS carrier routes with 3,805 residential and 252 business mailboxes (4,057 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 94930?
- The closest, measured center to center: 94960 (2.8 mi, Sleepy Hollow), 94957 (2.9 mi, Ross), 94941 (3.2 mi, Mill Valley), 94973 (3.2 mi, Woodacre), 94904 (3.8 mi, Kentfield) and 94963 (3.8 mi, San Geronimo).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.