http://www2.census.gov/geo/maps/dc10map/GUBlock/st06_ca/cousub/cs0608593175_south_santa_clara_valley/DC10BLK_CS0608593175_000.pdf US Census 2010 map for South Santa Clara Valley CCD 93175] The area covers approximately 118 sqmi , and includes the cities of Morgan Hill, San Martin, and Gilroy as well as their immediate outlying unincorporated areas.