Milpitas features modern, robust infrastructure suitable for a high-tech hub. Electricity and natural gas are primarily provided by Pacific Gas and Electric (PG&E), though the city explores greener community choice aggregation options. Water is supplied via the Santa Clara Valley Water District and the San Francisco Public Utilities Commission (Hetch Hetchy system), ensuring high-quality municipal water.
Sewer and wastewater services are managed by the San Jose-Santa Clara Regional Wastewater Facility. As part of Silicon Valley, Milpitas boasts excellent telecommunications infrastructure, with extensive high-speed broadband, fiber-optic internet, and comprehensive 5G cellular coverage provided by major national carriers like AT&T, Comcast, and Verizon.