San Joaquin is located 11 miles (18 km) southwest of Kerman,[8] at an elevation of 174 feet (53 m).

[9][additional citation(s) needed] According to the United States Census Bureau, the city incorporates a total area of 1.1 square miles (2.8 km2), all of it land.

There were 934 housing units at an average density of 813.6 per square mile (314.1/km2),of which 882 were occupied, 406 (46.0%) by the owners and 476 (54.0%) by renters.

At the 2000 census there were 3,270 people in 702 households, including 636 families, in the city.

There were 735 housing units at an average density of 742.3 per square mile (286.6/km2).

As of March 2022, the current mayor of San Joaquin is Julia Hernandez.

[14] In a county dominated by the agriculture industry, San Joaquin residents mostly work on farms.

The city suffers from poverty, and poor educational standards and achievements.

"[15] Brooks believes these factors will prevent long-term economic development and poverty alleviation.