San Francisco-Oakland-Fremont, CA Metro Area Demographics
San Francisco-Oakland-Fremont, CA Metro Area is the 12th most populous of 935 metro areas in the United States, with 4,748,919 residents across 2,470 square miles. That is about 1,923 people per square mile.
At the 2020 census
| Population | 4,748,919 |
|---|---|
| Land area | 2,470 sq mi |
| Density | 1,923 / sq mi |
Data: 2020 Census · American Community Survey 2024
How San Francisco-Oakland-Fremont, CA Metro Area compares to the US
We're computing this metro area's comparison table — check back shortly. Population, land area, and density above are already exact.
Central Location: San Francisco-Oakland-Fremont, CA Metro Area
Measured from the metro area's main population center using 2020 census blocks.
We're computing the drive-time and radius areas around San Francisco-Oakland-Fremont, CA Metro Area — check back shortly. Meanwhile you can drop a pin anywhere in the radius tool.
Counties in the San Francisco-Oakland-Fremont, CA Metro Area area
| Name | Population | Sq mi | Per sq mi |
|---|---|---|---|
| Alameda County, CA | 1,682,299 | 737.5 | 2,281 |
| Contra Costa County | 1,165,940 | 716.9 | 1,626 |
| San Francisco County | 873,965 | 46.7 | 18,700 |
| County San Mateo | 764,461 | 448.4 | 1,705 |
| Marin County | 262,254 | 520.4 | 504 |
Related places
About this page
This page shows demographics for a US metropolitan or micropolitan area from the 2020 census and the American Community Survey: population, land area, density, and how the area compares to national averages.
Metro areas are built from whole counties, listed below. Statistics aggregate the member counties' census tracts.