The baby name Alphonzo appears in baby name data for the United States from 1915 to 1987. It was most popular in 1952 with 36 babies given the name.
Over the period shown, Alphonzo has stayed at a similar level of popularity.
| Year | Count |
|---|---|
| 1915 | 12 |
| 1922 | 12 |
| 1926 | 15 |
| 1929 | 18 |
| 1931 | 15 |
| 1935 | 27 |
| 1936 | 5 |
| 1942 | 5 |
| 1943 | 15 |
| 1945 | 18 |
| 1946 | 5 |
| 1947 | 26 |
| 1948 | 27 |
| 1949 | 15 |
| 1951 | 6 |
| 1952 | 36 |
| 1953 | 23 |
| 1955 | 12 |
| 1956 | 6 |
| 1957 | 24 |
| 1960 | 6 |
| 1962 | 13 |
| 1963 | 8 |
| 1965 | 12 |
| 1975 | 16 |
| 1976 | 12 |
| 1987 | 5 |