The name reached its all-time peak in 2017 with 9 births ranking #11178. FALLING Recent data shows the name is currently falling.
King is a direct modern word name meaning exactly what it says. Its appeal is in its power, simplicity, and high-status image rather than in a long personal-name tradition.
The name entered baby naming through surname and title-word use rather than from an older inherited name line. It is a strongly modern choice shaped by message and style.