South San Francisco CCD CA Demographic Data and Boundary Map
Advertisement
South San Francisco CCD, CA
The South San Francisco CCD is a County Subdivision of San Mateo County.
The subdivision has a Z5 Census Class Code which indicates that the South San Francisco CCD is a statistical county subdivision.
South San Francisco CCD Data & Demographics (As of July 1, 2025)
POPULATION
Total Population
331,342 (100%)
Population in Households
328,587 (99.2%)
Population in Families
268,313 (81.0%)
Population in Group Quarters1
2,755 ( 0.8%)
Population Density
5,552
Diversity Index2
81
INCOME
Median Household Income
$143,576
Average Household Income
$186,994
% of Income for Mortgage4
56%
Per Capita Income
$62,462
Wealth Index5
167
HOUSING
Total HU (Housing Units)
116,435 (100%)
Owner Occupied HU
62,341 (53.5%)
Renter Occupied HU
48,277 (41.5%)
Vacant Housing Units
5,817 ( 5.0%)
Median Home Value
$1,291,025
Average Home Value
$1,348,923
Housing Affordability Index3
45
HOUSEHOLDS
Total Households
110,618
Average Household Size
2.97000000000
Family Households
76,587
Average Family Size
4
NOTES
Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
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 races 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.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
