Residential delivery area · California
ZIP Code 94920: Belvedere Tiburon, CA
ZIP code 94920 uses the postal name Belvedere Tiburon, California and lies entirely in Marin County (Census 2020 ZIP-county file). About 13,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $246,045 (Census Bureau, ACS 2020-2024). Most of its land (69%) lies in the city of Tiburon.
- ACS2020-24
- Census2020
- FHFA2021
- ZBP2023
- IRS2022
- Town
- Belvedere Tiburon · its only residential ZIP
- County
- Marin County
- Census places
- Tiburon (69%); Belvedere (8%)
- Neighborhoods
- Bel Aire, Little Reed Heights GeoNames
- Metro area
- San Francisco-Oakland-Fremont, CA
- House district
- CA-2 119th Congress
- State
- California
- Time zone
- Pacific
- Land area
- 6.5 sq mi · 1,937 people per sq mi
Where is ZIP code 94920?
94920 centers on 37.887°, -122.463° and covers 6.5 square miles of land plus 5.7 of water. It borders 2 ZIP codes: 94925, 94941.
The map draws ZIP code areas only. For the streets inside 94920, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0); neighborhoods from the GeoNames gazetteer (CC BY 4.0), placed in this ZIP code by PlainZIP.
How does 94920 compare with the rest of Marin County?
| Measure | 94920 | In Marin County | In CA |
|---|---|---|---|
| People (ACS 2020-2024) | 12,609 | 10th of 29 | 950th of 1,802 |
| Median household income | $246k | 2nd of 15 | 13th of 1,189 |
| Median home value | $2M+ | 1= of 20 | 1= of 1,317 |
1= means a shared first place: 94920's median home value ties with 5 other ZIP codes at the Census cap in Marin County; median home value ties with 61 other ZIP codes at the Census cap in California.
Its median household income is higher than in more than 99% of U.S. residential ZIP codes, and it is denser than 84% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 94920?
The 2020 Census counted 13,010 people in 94920; the ACS, which samples households over 2020-2024, estimates 12,609. Between the 2010 and 2020 censuses its population grew 4.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 12,609
- 2020 Census count
- 13,010+4.3% since 2010 (12,474)
- Households
- 4,934
- Median age
- 51.4
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 94920?
Of the 12,609 people the ACS estimates in 94920, 20.7% are under 18 and 26.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (78.2%).
- Under 1820.7%
- 18 to 6453.0%
- 65 and older26.2%
- White, not Hispanic78.2%
- Asian, not Hispanic7.9%
- Other or two or more6.6%
- Hispanic or Latino6.4%
- Black, not Hispanic0.9%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 94920 earn?
Median household income is $246,045 (ACS 2020-2024), the 2nd highest of the 15 ranked ZIP codes in Marin County. It rose from $203,444 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
By IRS adjusted gross income per tax return ($865,678, 2022), 94920 ranks 15th in the U.S. among ZIP codes of 1,000+ people with 200+ returns and at most 1.5 returns per household (see the ranking).
- Median household income
- $246,045±$25,397
- Income per person
- $156,030
- Below the poverty line
- 2.6%
- Unemployed (of the labor force)
- 8.2%
- Adults 25+ with a bachelor's degree
- 81.7%
- Adjusted gross income per tax return, 2022
- $865,6786,010 returns; wages 29% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 94920?
- Median home value (owners' estimate)
- $2,000,000 or more
- Median gross rent
- $3,500 or more
- Homes owned by their occupants
- 72.3%
- Housing units
- 5,816
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 94920?
392 business establishments had a location in this ZIP code in 2023, 7 more than in 2018; the most are in professional, scientific, and technical services (ZIP Code Business Patterns).
- Professional, scientific, and technical services104
- Real estate and rental and leasing52
- Finance and insurance39
- Retail trade30
- Other services (except public administration)27
- Accommodation and food services24
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 94920?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 94925 | Corte Madera | 10,077 | $233k | 4.0 mi |
| 94941 | Mill Valley | 32,706 | $210k | 7.9 mi |
| 94964 | San Quentin | 2,344 | $115k | 4.0 mi (near) |
| 94965 | Sausalito | 11,724 | $147k | 4.9 mi (near) |
| 94939 | Larkspur | 7,315 | $204k | 5.4 mi (near) |
| 94801 | Richmond | 33,591 | $82k | 5.6 mi (near) |
| 94123 | San Francisco | 24,054 | $219k | 6.1 mi (near) |
| 94129 | San Francisco | 3,836 | $221k | 6.2 mi (near) |
| 94904 | Greenbrae | 12,815 | $169k | 6.4 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.