There are an estimated 357 people named Castle alive worldwide today. That ranks Castle at #19830 globally, with the highest concentrations in United States.
In the United States, Castle is held by approximately 357 people, ranking #19830 among first names. That works out to roughly 0 per 100,000 Americans (or 1 in 929,692 U.S. residents).
Historically Castle is used overwhelmingly as a male name (100.0% male).
Castle appears in birth records going back to 1880. Use the chart below to see how its popularity has changed across decades, and the surname section to find common pairings.