Explore the Family Name Ozawa

The meaning of Ozawa

Japanese: written 小沢 ‘small swamp’, a common placename all over Japan. As a surname, it is mainly found in eastern Japan. Another pronunciation, Kozawa, is found in western Japan. Some families are of Taira descent. Some characteristic forenames: Japanese Yuichi, Isao, Masashi, Tetsuo, Yasunori, Yasushi, Yoshihiro, Atsuhiko, Atsushi, Ayako, Eiichi, Fumihiro.

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

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

According to the Decennial U.S. Census data, the surname Ozawa saw a decrease in popularity from 2000 to 2010. In 2000, it was ranked as the 35,994th most popular surname, but by 2010, it had fallen to the 41,886th spot, marking a change of -16.37%. The number of people with this surname also decreased during this period, from 589 to 519, a drop of almost 12%. The proportion per 100,000 people decreased by nearly 18%, going from 0.22 to 0.18.

20002010Change
Rank#35,994#41,886-16.37%
Count589519-11.88%
Proportion per 100k0.220.18-18.18%

Race and Ethnicity of people with the last name Ozawa

The Decennial U.S. Census data also revealed changes in the ethnic identity associated with the surname Ozawa. In 2000, 80.14% of individuals with this surname identified as Asian/Pacific Islander, but this figure dropped to 77.26% by 2010. Over the same timeframe, the percentage of those identifying as having two or more races increased by over 25%, rising from 7.98% to 10.02%. The percentage of individuals with this surname identifying as White decreased from 8.49% to 7.51%. There was a slight increase in the percentage identifying as Hispanic, from 2.21% to 2.70%. No individuals with this surname identified as Black in either year. In 2010, there were individuals who identified as American Indian and Alaskan Native, not recorded in 2000.

20002010Change
Asian/Pacific Islander80.14%77.26%-3.59%
Two or More Races7.98%10.02%25.56%
White8.49%7.51%-11.54%
Hispanic2.21%2.7%22.17%
American Indian and Alaskan Native0%2.5%0%
Black0%0%0%