The baby name Kazuko appears in baby name data for the United States from 1918 to 1933. It was most popular in 1927 with 54 babies given the name.
Over the period shown, Kazuko has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1918 | 10 |
| 1919 | 14 |
| 1921 | 12 |
| 1923 | 10 |
| 1926 | 10 |
| 1927 | 54 |
| 1928 | 24 |
| 1929 | 10 |
| 1931 | 14 |
| 1932 | 14 |
| 1933 | 14 |