Sunnyvale, California City City of Sunnyvale South Murphy Avenue Flag Seal Location in Santa Clara County and the state ofCalifornia Sunnyvale, California Location in the United States Coordinates: 37°22′16″N 122°2′15″W Country United States State California County Santa Clara Incorporated December 24, 1912[1] Government • Type Council-manager[2] • Mayor Glenn Hendricks[2] • Vice mayor Larry Klein[2] • City Manager Kent Steffens[3] Area[4] • Total 22.69 sq mi (58.75 km2) • Land 21.98 sq mi (56.94 km2) • Water 0.70 sq mi (1.82 km2) 3.09% Elevation[5] 125 ft (38 m) Population (2010)[6] • Total 140,081 • Estimate (2016)[7] 152,771 • Rank 2nd in Santa Clara County 39th in California • Density 6,949.51/sq mi (2,683.18/km2) Time zone PST (UTC-8) • Summer (DST) PDT (UTC-7) ZIP codes 94085–94090 Area codes 408/669 and 650 FIPS code 06-77000 GNIS feature IDs 1656344, 2412009 Website sunnyvale.ca.gov