The baby name Rosco appears in baby name data for the United States from 1917 to 1943. It was most popular in 1923 with 32 babies given the name.
Over the period shown, Rosco has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1917 | 5 |
| 1919 | 6 |
| 1920 | 24 |
| 1921 | 5 |
| 1922 | 24 |
| 1923 | 32 |
| 1924 | 10 |
| 1927 | 5 |
| 1928 | 5 |
| 1930 | 5 |
| 1936 | 5 |
| 1940 | 6 |
| 1943 | 15 |