San Francisco, CA Profile: Facts, Map & Data


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San Francisco, California - Basic Facts

The City of San Francisco is the 4th largest city in California with a population of 871,042 as of July 1, 2017. San Francisco ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in California. See peer rankings below.

The primary coordinate point for San Francisco is located at latitude 37.7272 and longitude -123.0322 in San Francisco County. The formal boundaries for the City of San Francisco (see map below) encompass a land area of 46.89 sq. miles and a water area of 185 sq. miles. San Francisco County is in the Pacific time zone (GMT -8). The elevation is 52 feet.

The City of San Francisco (GNIS ID: 2411786) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

California is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of San Francisco is located within of San Francisco County.

Beneath the boundary map are tables with San Francisco population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for San Francisco: Frisco, New Albion, Yerba Buena.

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City of San Francisco, CA Boundary Map

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San Francisco, CA Data & Demographics (As of July 1, 2017)


Total Population 871,042
Daytime Population: Workers 684,254
Daytime Population: Residents 372,898
Total Daytime Population (TDP) 1,057,152
Ratio TDP/Total Population1 1.21
Population in Households 847,464
Population in Familes 509,208
Population in Group Qrtrs 23,578
Population Density2 18,575
Diversity Index3 74


Median Household Income $82,192
Average Household Income $123,486
Per Capita Income $53,925


Total Housing Units 400,629 (100%)
Owner Occupied HU 128,802 (32.1%)
Renter Occupied HU 245,033 (61.2%)
Vacant Housing Units 26,794 ( 6.7%)
Median Home Value $871,451
Average Home Value $894,200


Total Households 373,835
Average Household Size 2.27
Family Households 163,179
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.09% 1.04%
Households 1.08% 1.03%
Families 1.07% 1.02%
Median Household Income   3.17%
Per Capita Income   2.77%

San Francisco, CA - Peer Comparisons by Rank and Percentile

The table below compares San Francisco to the other 1,516 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 4 100th
Population Density # 9 99th
Diversity Index # 532 65th
Median Household Income # 324 79th
Per Capita Income # 173 89th

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.

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