San Joaquin, California Demographics & Population 2026

Population Overview

San Joaquin is a small community located in California, within Fresno County. The total population is 3,708. It ranks as the 731st most populous out of 1,570 Census-designated places in California.

Age Demographics

The median age in San Joaquin is 25.3 years. This is 33% lower than the state median of 37.9 years. With 40.2% of the population under 18, San Joaquin has a notably young demographic profile, suggesting a family-oriented community.

Economy, Income & Housing

The median household income in San Joaquin is $43,011. This is 57% lower than the state median of $99,122. It is also 47% lower than the national median of $80,734. The poverty rate stands at 41.0%. This is 242% higher than the state poverty rate of 12.0%. With more than one in five residents living below the poverty line, economic hardship is a significant challenge for the community. The unemployment rate is 19.3%. This is 192% higher than the state rate of 6.6%. The median home value is $266,300. Housing costs are 64% lower than the state median of $734,700. The home-value-to-income ratio of 6.2x suggests that housing affordability is a significant concern for many residents. 32.6% of occupied housing units are owner-occupied. This homeownership rate is 42% lower than the state average of 55.9%.

Race & Ethnicity

San Joaquin has a predominantly Hispanic or Latino population, comprising 93.8% of all residents. Black or African American residents account for 4.5%. The White (non-Hispanic) population (0.4%) is well below the state average of 33.8%. The Hispanic or Latino population is significantly higher than the state average (93.8% vs 40.2%).

Education

1.5% of residents aged 25 and older hold a bachelor's degree or higher. This is among the lowest rates in the state, which may correlate with employment and income patterns. This is 96% lower than the state rate of 37.1%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 37.5%.

Data Sources & Methodology

All demographic data for San Joaquin, California is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against California state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 1,570 Census-designated places in California. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.