City of Sunnyvale | 8,667 followers on LinkedIn. We build community trust by delivering exceptional services. | Welcome to Sunnyvale: The Heart of the Silicon Valley Visitors and residents enjoy Sunnyvale’s beautiful, clean suburban setting, efficient, high-quality city services, low crime rate, quality schools and prize-winning parks. Through its innovative and cost effective Public Safety Department concept, which combines traditional fire and police functions into one department, the city offers its citizens and businesses an award-winning record of safety and efficiency. City departments include: City Manager, City Attorney, Community Development, Environmental Services, Finance, Human Resources, Information Technology, Library & Community Services, Public Safety (an innovative Police/Fire combination), and Public Works.