Bill King spent four years in the United States Navy, where he trained as an aviation electrician's mate. Following his military service, he embarked on a 35-year career with General Motors, where he gained extensive experience in engineering and management. King currently resides in Milford, New Hampshire, and is semi-retired. He was elected to the New Hampshire House of Representatives in November 2020 and represents the Hillsborough 23 district.

Bill King's political identity is shaped by a blend of pragmatic experience and ideological steadfastness. His military background and long career at General Motors suggest a pragmatic approach, yet his Republican affiliation hints at a consistent conservative ideology. King's legislative record shows an unexpected convergence with opposing factions on environmental regulations, revealing a highly calculated approach to protecting regional industrial interests. His rhetoric often emphasizes community values and personal responsibility, balancing traditional conservative principles with a focus on regional economic concerns.