San Marino, CA Profile: Facts & Data

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San Marino, California - Basic Facts

The City of San Marino had a population of 12,324 as of July 1, 2023.

The primary coordinate point for San Marino is located at latitude 34.1214 and longitude -118.1065 in Los Angeles County. The formal boundaries for the City of San Marino encompass a land area of 3.77 sq. miles and a water area of 0.01 sq. miles. Los Angeles County is in the Pacific time zone (GMT -8).

The City of San Marino 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 Marino is located within Pasadena CCD of Los Angeles County.


Jump to... (On This Page!)
  1. San Marino 2023 Demographic Data
  2. Growth Rates for San Marino (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. California Research Tools (Easy Tools & Current Data)
  3. California Data Comparison Tool - 2023 Demographics
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San Marino, CA Data & Demographics (As of July 1, 2023)

POPULATION

Total Population 12,324 (100%)
Population in Households 12,278 (99.6%)
Population in Families 11,504 (93.3%)
Population in Group Quarters1 46 ( 0.4%)
Population Density 3,273
Diversity Index2 59
 
 

INCOME

Median Household Income $187,134
Average Household Income $278,594
% of Income for Mortgage4 64%
Per Capita Income $94,567
Wealth Index5 363
Socioeconomic Status Index6 High (66.8)
 

HOUSING

Total HU (Housing Units) 4,439 (100%)
Owner Occupied HU 3,609 (81.3%)
Renter Occupied HU 574 (12.9%)
Vacant Housing Units 256 ( 5.8%)
Median Home Value $2,000,001
Average Home Value $1,925,748
Housing Affordability Index3 40
 

HOUSEHOLDS

Total Households 4,183
Average Household Size 2.94
Family Households 3,595
Average Family Size 3.00
NOTES
  1. 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.
  2. 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.
  3. 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.
  4. 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).
  5. 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.
  6. The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR

2020-2023 2023-2028
Population -0.47% -0.27%
Households -0.18% -0.09%
Families   -0.07%
Median Household Income   1.34%
Per Capita Income   2.23%
Owner Occupied HU   0.01%

San Marino, CA - Peer Comparisons by Rank and Percentile

The table below compares San Marino to the other 1,611 incorporated cities, towns and CDPs in California by rank and percentile using July 1, 2023 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 # 449 72nd
Population Density # 434 73rd
Median Household Income # 61 96th
Housing Affordability Index # 372 23rd
Per Capita Income # 67 96th
Diversity Index # 1084 33rd

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

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