Explore the Family Name Hiraoka

The meaning of Hiraoka

Japanese: written 平岡 ‘peaceful hill’. It is found mostly in western Japan and the Ryūkyū Islands. Some bearers of the name descend from the Kudō (see Kudo) branch of the southern Fujiwara, others from the Mizoguchi branch of the Minamoto. Some characteristic forenames: Japanese Tadashi, Toshihiko, Toshiki, Atsushi, Chiaki, Hideaki, Hidenori, Hiroshi, Hiroyuki, Ichiro, Keiko, Kiyoshi.

Dictionary of American Family Names, 2nd edition, © Oxford University Press, 2022.

How common is the last name Hiraoka in the United States?

According to data from the Decennial U.S. Census, the surname Hiraoka was ranked 53,904 in popularity in 2000 and saw a minor decrease in rank to 55,386 in 2010. This represents a change of -2.75%. Despite this slight decline in rank, the actual count of individuals with the Hiraoka surname increased by 3.34% from 359 in 2000 to 371 in 2010. The proportion of people per 100,000 with this surname remained steady at 0.13 both in 2000 and 2010.

20002010Change
Rank#53,904#55,386-2.75%
Count3593713.34%
Proportion per 100k0.130.130%

Race and Ethnicity of people with the last name Hiraoka

The ethnic identity associated with the Hiraoka surname, based on Decennial U.S. Census data, is predominantly Asian/Pacific Islander, with a slightly declining representation from 85.52% in 2000 to 77.63% in 2010. There was a substantial increase in individuals of two or more ethnicities holding this surname, from 7.24% in 2000 to 12.94% in 2010. The percentage of White individuals with this surname also increased marginally from 5.85% to 7.01%, while the Hispanic representation nearly doubled from 1.39% to 2.43% over the same period. The percentages of Black, American Indian, and Alaskan Native individuals with the Hiraoka surname remained unchanged and insignificant.

20002010Change
Asian/Pacific Islander85.52%77.63%-9.23%
Two or More Races7.24%12.94%78.73%
White5.85%7.01%19.83%
Hispanic1.39%2.43%74.82%
Black0%0%0%
American Indian and Alaskan Native0%0%0%