thumb|300px|Map of San José Department
San José Department () is a department of Uruguay. Its capital is San José de Mayo. It borders Colonia Department to the west, Flores Department to the north and the departments of Florida, Canelones and Montevideo to the east. Its southern limits are described by its coastline on Rio de la Plata.
Demographics
As of the 2023 census, San José had a population of 119,718, an 8,5% increase from 2011's 110,323 figure. An increase was observed in ages above 40, while younger ages experienced significant decline. This is consistent with the intercensal evolution of births versus deaths, with deaths surpassing births in 2019.
The largest urban centres in the department are San José de Mayo and Ciudad del Plata, with 38,533 and 38,249 inhabitants respectively. An estimated 11,613 live in rural areas.
87.3% of households have access to drinking water provided by OSE. Although this is an increase compared to previous periods, San José remains the department with the least percentage of household's connected to the general network. If access to drinking water through semi-surgent wells, a common practice in rural areas, is included, this figure rises to 97.4%.
Main urban centres
Population stated as per 2023 census.