San Francisco County, California
San Francisco County, California, has 826,079 residents (July 2025 estimate). Its county seat is San Francisco. It uses Pacific Time and covers 46.7 sq mi (121 km²) of land.
- Resident population, July 2025
- 826,079
- Land area
- 46.7 sq mi (121 km²)
- County seat or government
- San Francisco
- Time zone
- Pacific TimeUTC-08:00 in January; UTC-07:00 in July
- Median household income
- $140,970 ± $2,593
- Median home value
- $1,394,500 ± $20,642
- Median rent, with utilities
- $2,476 ± $30
- Homes lived in by their owners
- 38.2% ± 0.6 points
- County type
- County
- Metro or micro area
- San Francisco-Oakland-Fremont, CA metro areaCentral county
- Water area
- 185 sq mi (480 km²)
- State
- California
- County code (FIPS)
- 06075
- Coordinates (central point)
- 37.727239, -123.032229
These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.
Time zones in San Francisco County
| Time zone | Local time and UTC offset | Next clock change |
|---|---|---|
| Pacific TimeAmerica/Los_Angeles | UTC-08:00 in January; UTC-07:00 in July. Enable JavaScript for the live clock. | Enable JavaScript for upcoming changes. |
Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.
ZIP Code areas, largest first
- 9411279,277 people
- 9411066,865 people
- 9450163,808 people
- 9412255,819 people
- 9410954,553 people
- 9401445,315 people
- 9411643,791 people
- 9412141,995 people
- 9411839,130 people
- 9413438,633 people
- 9411736,198 people
- 9410235,976 people
All 31
- 9410334,964 people
- 9412434,475 people
- 9411433,020 people
- 9411532,629 people
- 9410731,823 people
- 9413128,504 people
- 9413226,859 people
- 9412324,054 people
- 9413323,804 people
- 9412720,288 people
- 9410513,861 people
- 9492012,609 people
- 9415811,314 people
- 9410811,305 people
- 941114,579 people
- 941293,836 people
- 941302,429 people
- 94104498 people
- 941880 people
31 ZIP Code areas overlap San Francisco County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.
Official county information
We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.
School districts in San Francisco County, largest first
- San Francisco Unified School District830,235 people
Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- San Francisco, California (city)830,235 people
Bordering areas, nearest first
Distances are straight lines between map points.
- Marin County, California27 mi northeast
- San Mateo County, California42 mi southeast
- Contra Costa County, California60 mi east
- Alameda County, California61 mi east
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county where you are now, check its ZIP area, or check the time zone where you are.
Areas that only touch the edge
These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.