San Diego, CA Profile: Facts & Data


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San Diego, California - Basic Facts

The City of San Diego is the 2nd largest city in California with a population of 1,401,675 as of July 1, 2023. San Diego ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in California. See peer rankings below.

The primary coordinate point for San Diego is located at latitude 32.7153 and longitude -117.1573 in San Diego County. The formal boundaries for the City of San Diego encompass a land area of 325.19 sq. miles and a water area of 47.2 sq. miles. San Diego County is in the Pacific time zone (GMT -8).

The City of San Diego 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 Diego is located within San Diego CCD of San Diego County.

Jump to... (On This Page!)
  1. San Diego 2023 Demographic Data
  2. Growth Rates for San Diego (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

San Diego, CA Data & Demographics (As of July 1, 2023)


Total Population 1,401,675 (100%)
Population in Households 1,338,620 (95.5%)
Population in Families 990,743 (70.7%)
Population in Group Quarters1 63,055 ( 4.5%)
Population Density 4,301
Diversity Index2 84


Median Household Income $96,517
Average Household Income $135,847
% of Income for Mortgage4 52%
Per Capita Income $51,359
Wealth Index5 124
Socioeconomic Status Index6 Moderate (47.3)


Total HU (Housing Units) 560,181 (100%)
Owner Occupied HU 249,384 (44.5%)
Renter Occupied HU 274,406 (49.0%)
Vacant Housing Units 36,391 ( 6.5%)
Median Home Value $838,336
Average Home Value $951,832
Housing Affordability Index3 48


Total Households 523,790
Average Household Size 2.56
Family Households 304,712
Average Family Size 3.00
  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.


2020-2023 2023-2028
Population 0.33% 0.35%
Households 0.48% 0.48%
Families   0.46%
Median Household Income   2.31%
Per Capita Income   2.70%
Owner Occupied HU   0.60%

San Diego, CA - Peer Comparisons by Rank and Percentile

The table below compares San Diego 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 # 2 100th
Population Density # 311 81st
Median Household Income # 502 69th
Housing Affordability Index # 577 36th
Per Capita Income # 460 72nd
Diversity Index # 204 88th

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

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