Statistic San Diego California National
Population 1,414,545 39,512,223 328,239,523
Population density (sq mi) 4,341 256 91
Median age 35.2 36.0 37.7
Male/Female ratio 1.0:1 1.0:1 1.0:1
Married (15yrs & older) 49% 52% 55%
Families w/ Kids under 18 43% 46% 43%
Speak English 60% 56% 79%
Speak Spanish 22% 29% 13%

Overview of San Diego Demographics

San Diego demographics provide invaluable insights into the composition, dynamics and needs of urban and rural areas, enabling them to plan, develop, and govern in ways that promote prosperity, equity and well-being for all residents. The San Diego population is 1,414,545 and has a population density of 4,341 people per square mile, compared to the national average of 91. The median age of all residents is 35.2, 49% of people 15 years of age or older are married and 43% have kids under the age of 18. In San Diego, 14% of households have a median income that is below $25,000 and 32% of households report a median income above $150,000.

San Diego Racial Demographics & Ethnicity

Recognizing the racial demographics and ethnicity breakdown of San Diego is pivotal for addressing systemic inequities, championing social justice and inclusion and fostering resilient communities. In San Diego, the racial breakdown comprises 62% White, 6.1% Black or African American, 17.3% Asian, 0.5% American Indian, and 0.4% Native Hawaiian, with 30.1% of the population identifying as Hispanic or Latino. 60.5% of households reported speaking English only, while 22% reported speaking Spanish only. Furthermore, 25.6% of residents were categorized as foreign-born.

San Diego Population Density

Areas with a high population density tend to support a wide range of amenities and services within walking distance or a short commute. Residents tend to have convenient access to healthcare facilities, educational institutions, cultural venues, restaurants, shops and public transportation options, enhancing their quality of life and overall well-being. The San Diego population density is 4,341 people per square mile, which is well-above the national average of 91 and is considered one of the most densely populated cities in the country.

Why are Demographics Important?

Social Cohesion: The analysis and understanding of demographics are essential for promoting social cohesion and fostering appreciation among diverse communities. By embracing and acknowledging differences in San Diego demographics, societies can promote inclusivity, diversity and social harmony while addressing social inequalities and advocating for equal opportunities. Racial demographics can reflect the diversity within a population and are instrumental in fostering inclusive and welcoming communities. Embracing ethnic diversity strengthens social connections, promotes cultural understanding and enriches society by celebrating the contributions of individuals from diverse racial and ethnic backgrounds.

Healthcare Planning: An analysis of San Diego demographics can inform healthcare planning and delivery by identifying population health needs, disparities and risk factors. Understanding demographic trends allows healthcare providers and policymakers to allocate resources effectively, develop prevention and intervention programs and address health inequities within communities. Leveraging demographic data, healthcare providers, and policymakers strive to achieve equitable, accessible, and high-quality healthcare for all individuals and communities. This proactive healthcare planning approach ensures targeted interventions, efficient resource allocation and customized healthcare services to meet the diverse needs of populations.

Urban Development: By leveraging demographic data in San Diego, urban planners can tailor areas to meet the needs of any resident across housing, transportation and public services, all while fostering sustainability and elevating quality of life. Demographic changes can fuel gentrification and neighborhood transformation, whether in urban or rural settings. As neighborhoods attract newcomers with varying income levels and lifestyle preferences, property values may appreciate, potentially displacing established residents and reshaping the neighborhood's fabric. A nuanced understanding of population density, age distribution, household size and income levels is pivotal for guiding decisions on zoning, transportation infrastructure, housing development and public amenities. Utilizing the demographic data in planning and implementing affordable housing initiatives can help mitigate displacement risks and promote inclusive communities.

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Demographics Quick Facts

  • The population density in San Diego is 1596% higher than California
  • The median age in San Diego is 2% lower than California
  • In San Diego 61.95% of the population is White
  • In San Diego 6.09% of the population is Black
  • In San Diego 17.25% of the population is Asian

Compare San Diego, CA Demographics


      San Diego racial demographics

      Race San Diego California National
      White 61.95% 61.26% 73.35%
      Black 6.09% 5.85% 12.63%
      Asian 17.25% 13.85% 5.22%
      American Indian 0.52% 0.74% 0.82%
      Native Hawaiian 0.42% 0.39% 0.18%
      Mixed race 7.77% 4.62% 3.06%
      Other race 5.99% 13.28% 4.75%
      In San Diego, 30.1% of people are of Hispanic or Latino origin.
      Please note: Hispanics may be of any race, so also are included in any/all of the applicable race categories above.

      Household income distribution

      Place of birth by citizenship

      San Diego age breakdown

      Marital status

      Age of children in married couples

      Source: The San Diego, CA demographics data displayed above is derived from the United States Census Bureau American Community Survey (ACS).