San Carlos, CA Profile: Facts, Map & Data


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San Carlos, California - Basic Facts

The City of San Carlos had a population of 29,558 as of July 1, 2016. San Carlos 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 Carlos is located at latitude 37.4955 and longitude -122.2668 in San Mateo County. The formal boundaries for the City of San Carlos (see map below) encompass a land area of 5.53 sq. miles and a water area of 0 sq. miles. San Mateo County is in the Pacific time zone (GMT -8). The elevation is 30 feet.

The City of San Carlos (GNIS ID: 2411780) 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 Carlos is located within San Mateo CCD of San Mateo County.

Beneath the boundary map are tables with San Carlos population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

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City of San Carlos, CA Boundary Map

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San Carlos, CA Data & Demographics (As of July 1, 2016)


Total Population 29,558
Population in Households 29,360
Population in Familes 24,228
Population in Group Qrtrs 198
Population Density1 5,349
Diversity Index2 52


Total Households 11,803
Average Household Size 2.49
Family Households 8,005
Average Family Size 3


Total Housing Units 12,323 (100%)
Owner Occupied HU 8,354 (67.8%)
Renter Occupied HU 3,450 (28.0%)
Vacant Housing Units 520 ( 4.2%)
Median Home Value $973,135
Average Home Value $993,024


Median Household Income $121,038
Average Household Income $173,190
Per Capita Income $69,199
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 0.64% 0.89%
Households 0.38% 0.72%
Families 0.36% 0.73%
Median Household Income   1.87%
Per Capita Income   1.41%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

San Carlos, CA - Peer Comparisons by Rank and Percentile

The table below compares San Carlos to the other 1,516 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2016 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 # 268 82nd
Population Density1 # 210 86th
Diversity Index2 # 956 37th
Median Household Income # 71 95th
Per Capita Income # 68 96th

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

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