94901 ZIP Code, San Rafael, CA
94901 is a ZIP code in San Rafael, California in Marin County. It covers 13 square miles of land. The closest ZIP codes are 94964, 94925 and 94939. 41,307 people live here in 15,631 households. At about 3,153 people per square mile it has suburban density, and owners and renters are mixed (51% own). Median household income is $115,330, above the California median of $99,122.
Quick facts
- Mailing city: San Rafael, CA
- County: Marin County
- Land area: 13 sq mi
- Population: 41,307
- Median household income: $115,330
- Carrier routes: 36 (16,083 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 41,307 |
| Households | 15,631 |
| Median household income | $115,330 |
| Income per person | $71,449 |
| Median age | 41.6 |
| Homeowners | 51.0% |
| Median home value | $1,512,600 |
| Median rent | $2,256 |
| Bachelor's degree or higher | 49.0% |
| Average commute (minutes) | 24 |
| Households with kids under 18 | 28.9% |
| Moved in the past year | 9.9% |
| Below the poverty line | 14.1% |
| Broadband internet | 94.6% |
| Speak a non-English language at home | 42.2% |
Household income
| % of households | Value |
|---|---|
| <$10K | 2.9% |
| $10–15K | 2.3% |
| $15–25K | 3.8% |
| $25–35K | 5.3% |
| $35–50K | 6.9% |
| $50–75K | 12.0% |
| $75–100K | 11.6% |
| $100–150K | 15.5% |
| $150–200K | 10.9% |
| $200K+ | 28.8% |
Age
| % of all residents | Value |
|---|---|
| <10 | 11.0% |
| 10–19 | 14.1% |
| 20–24 | 5.0% |
| 25–34 | 10.2% |
| 35–44 | 15.0% |
| 45–54 | 13.1% |
| 55–64 | 12.5% |
| 65–74 | 11.6% |
| 75+ | 7.4% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 34.7% |
| Owned outright | 14.9% |
| Rented | 46.7% |
| Vacant | 3.7% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 51.0% |
| Townhome | 7.9% |
| 2–4 units | 14.6% |
| 5–19 units | 14.5% |
| 20+ units | 11.6% |
| Mobile / other | 0.5% |
Businesses in 94901
2,001 business establishments with 24,497 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 333
- Construction: 223
- Health Care and Social Assistance: 222
- Retail Trade: 216
- Other Services (except Public Administration): 207
- Accommodation and Food Services: 162
- Real Estate and Rental and Leasing: 118
- Administrative and Support and Waste Management and Remediation Services: 99
EDDM carrier routes
94901 has 36 USPS carrier routes with 16,083 residential and 2,713 business mailboxes. Open the EDDM route map.
Carrier routes in 94901
94901 has 36 USPS carrier routes (36 city (C)) with 16,083 residential and 2,713 business mailboxes. Routes range from 97 homes (C097) to 929 homes (C007); the median route has 410 homes. The Census counted 15,631 households in 94901 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 4 |
| 250–499 | 19 |
| 500–749 | 11 |
| 750–999 | 2 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 94901 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C010 — USPS business mailboxes 411, 232 homes
- Route C018 — USPS business mailboxes 377, 106 homes
- Route C097 — USPS business mailboxes 283, 97 homes
- Route C024 — USPS business mailboxes 277, 546 homes
- Route C109 — USPS business mailboxes 260, 329 homes
Select these 5 routes on the route map
Every carrier route in 94901
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C007 | City | 929 | 160 | $52,558 | — | — | — |
| C010 | City | 232 | 411 | $100,305 | — | — | — |
| C012 | City | 507 | 56 | $149,095 | — | — | — |
| C015 | City | 587 | 3 | $52,558 | — | — | — |
| C018 | City | 106 | 377 | $52,558 | — | — | — |
| C023 | City | 367 | 50 | $62,905 | — | — | — |
| C024 | City | 546 | 277 | $52,558 | — | — | — |
| C028 | City | 395 | 2 | $178,551 | — | — | — |
| C061 | City | 333 | 1 | $200,001+ | — | — | — |
| C062 | City | 208 | 0 | $200,001+ | — | — | — |
| C063 | City | 436 | 5 | $52,558 | — | — | — |
| C089 | City | 677 | 198 | $100,305 | — | — | — |
| C094 | City | 352 | 0 | $142,054 | — | — | — |
| C095 | City | 871 | 3 | $87,325 | — | — | — |
| C097 | City | 97 | 283 | $62,905 | — | — | — |
| C098 | City | 276 | 1 | $200,001+ | — | — | — |
| C099 | City | 291 | 0 | $200,001+ | — | — | — |
| C101 | City | 458 | 2 | $111,363 | — | — | — |
| C103 | City | 612 | 17 | $104,619 | — | — | — |
| C106 | City | 414 | 10 | $122,944 | — | — | — |
| C109 | City | 329 | 260 | $82,876 | — | — | — |
| C113 | City | 632 | 23 | $191,831 | — | — | — |
| C114 | City | 543 | 18 | $128,294 | — | — | — |
| C116 | City | 425 | 68 | $122,944 | — | — | — |
| C117 | City | 558 | 60 | $104,619 | — | — | — |
| C120 | City | 654 | 163 | $100,305 | — | — | — |
| C121 | City | 610 | 35 | $193,804 | — | — | — |
| C125 | City | 329 | 37 | $82,876 | — | — | — |
| C126 | City | 384 | 0 | $164,914 | — | — | — |
| C127 | City | 367 | 0 | $191,831 | — | — | — |
| C129 | City | 407 | 47 | $111,363 | — | — | — |
| C165 | City | 348 | 121 | $77,082 | — | — | — |
| C166 | City | 719 | 12 | $108,361 | — | — | — |
| C168 | City | 412 | 5 | $178,551 | — | — | — |
| C196 | City | 286 | 1 | $200,001+ | — | — | — |
| C201 | City | 386 | 7 | $200,001+ | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 94901 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
- 94964 (2.8 mi)
- 94925 — Corte Madera town, CA (3.4 mi)
- 94939 — Larkspur city, CA (3.5 mi)
- 94957 — Ross town, CA (3.5 mi)
- 94904 — Kentfield CDP, CA (3.6 mi)
- 94903 — San Rafael city, CA (4.3 mi)
- 94960 — Sleepy Hollow CDP, CA (4.4 mi)
- 94949 — Novato city, CA (5.5 mi)
Areas that include 94901
- San Rafael, CA ZIP codes — 2 ZIP codes
- Santa Venetia, CA ZIP codes — 2 ZIP codes
- Marin County ZIP codes — 29 ZIP codes
- California ZIP code data
Where it ranks
- No. 6 of 21: highest share of households with children in Marin County
- No. 1 of 21: lowest median age in Marin County
Mail every home in 94901
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) 94901, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 94901 in?
- 94901 is a San Rafael, CA mailing address. By land area, 78% lies inside San Rafael and 11% lies inside Santa Venetia; the rest is outside any Census-defined city or community.
- What county is 94901 in?
- 94901 is in Marin County.
- What is the population of 94901?
- About 41,307 people (±1,310), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 43,338.
- What is the median household income in 94901?
- $115,330 (±$11,086), 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 94901?
- 36 USPS carrier routes with 16,083 residential and 2,713 business mailboxes (18,796 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 94901?
- The closest, measured center to center: 94964 (2.8 mi), 94925 (3.4 mi, Corte Madera), 94939 (3.5 mi, Larkspur), 94957 (3.5 mi, Ross), 94904 (3.6 mi, Kentfield) and 94903 (4.3 mi, San Rafael).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.