As part of the Silicon Valley, Sunnyvale is headquarters to several high-tech companies such as Maxim Integrated Products, Juniper Networks, Palm, Inc., AMD, Network Appliance, Spansion, Yahoo!, Mirapoint, and Ariba, Inc. Sunnyvale is also home to several aerospace/defense companies; Lockheed Martin has a major facility in Sunnyvale. Honeywell, Northrop Grumman Mission Systems (located at the Hendy Iron Works Museum), and Spirent Communications also have offices in Sunnyvale.
Sunnyvale is also the home to Onizuka Air Force Station (commonly called "the blue cube"). The base, named for the deceased Space Shuttle Challenger astronaut Ellison Onizuka, is the primary artificial satellite control facility of the United States armed forces. When the Spanish first arrived in the late 1700s, Ohlone Indians populated the Santa Clara Valley, in which present day Sunnyvale is located. The valley is also now referred to as "Silicon Valley".

Leisure opportunities include numerous outdoor activities that include its Baylands Park provides over 70 acres of developed parkland offering active recreation, pathways and picnic areas for families and large groups. An additional 105 acres of seasonal wetlands is protected as a Wetlands Preserve providing habitat for plants and wildlife. Residents also benefit from cultural and historical venues such as The Sunnyvale Community Players, The Sunnyvale Singers, The Sands Mechanical Museum, The Lace Museum, The Sunnyvale Historical Museum, and The Iron Man Museum.
February 2010 Median House: $609,500