Newbury is an English surname. Within the United States, it is the name of 0.001 per cent of the population. Following the 1990 Census, the U.S. Census Bureau ranked the name Newbury as number 16,415 in its list of Frequently Occurring Surnames.[1]
The name is cognate with the surname Newberry (in 1990 possessed by 0.005 per cent of the U.S. population and ranked number 2,359) and Newbery, which at number 55,231 in the rankings rounded to 0.000 per cent of the U.S. population.[1] However, in the United Kingdom Newbury is the more usual spelling.