Milton possesses modern, reliable infrastructure suited to its affluent population. Electricity is primarily provided by Sawnee EMC and Georgia Power. Natural gas is supplied by Atlanta Gas Light through various marketers.
Water is provided by the Fulton County Department of Public Works. However, due to the large, multi-acre lot sizes that dominate the city, a significant percentage of Milton homes rely on private septic systems rather than municipal sewer connections.
High-speed internet and broadband are widely available through major providers such as Comcast, AT&T (including fiber connections in many neighborhoods), ensuring seamless connectivity for the city's large remote-working population.