As of 2025 the population of San Joaquin County is 814,353. The population is expected to grow to 843,186 by 2030 - a growth rate of 0.70%.
The median age of San Joaquin County residents is 36.
The diversity index of San Joaquin County is 88.6, meaning that there is a 89% chance that any two people selected out of 100 residents will be of different race or ethnicity from one another.
The average household income in San Joaquin County is $121,231 and projected to be $133,389 in 2030. Per capita income is $38,126, projected to be $42,204 in 2030. 4.91% of households – 39,971 – have an income of $200,000 or higher. Average net worth is $1,302,242 and the average disposable income is $89,773.
There are 266,767 housing units in San Joaquin County; 157,272 are owner-occupied, 98,280 are rented, and 11,215 are vacant. The average home value is $628,040, with 23,905 homes built in 2010 or later, and 17,874 built in 1939 or earlier.
There are 21,724 businesses in San Joaquin County, employing 249,388 workers and pulling from a labor force of 331,583 age 16 and above. 84,306 workers commute into San Joaquin County from outside the county or state. Key industries for the area include:
246,523 residents both live and work in/around San Joaquin County. The average travel time is 34.6 minutes. 3.16% people have a commute of less than 5 minutes while 12.76% commute 90 minutes or more each way. Of commuters, 247,993 drive alone, 41,030 carpool, and 3,738 take public transportation. 7,824 use other modes of transport such as motorcycle, bicycle, walking, etc. 30,704 residents work from home.
154,432 members of the workforce hold a high school diploma or GED. 53,549 have associates degrees, 86,106 have bachelor’s degrees, and 40,170 hold a graduate or professional degree.
Source: ESRI, 2025-08-25
