The baby name Alonza appears in baby name data for the United States from 1912 to 1998. It was most popular in 1929 with 94 babies given the name.
In the later years of this period, Alonza has become less common than it once was.
| Year | Count |
|---|---|
| 1912 | 10 |
| 1913 | 5 |
| 1914 | 26 |
| 1915 | 39 |
| 1916 | 40 |
| 1917 | 16 |
| 1918 | 35 |
| 1919 | 36 |
| 1920 | 54 |
| 1921 | 46 |
| 1922 | 40 |
| 1923 | 58 |
| 1924 | 15 |
| 1925 | 35 |
| 1926 | 35 |
| 1927 | 28 |
| 1928 | 27 |
| 1929 | 94 |
| 1930 | 41 |
| 1931 | 35 |
| 1932 | 61 |
| 1933 | 44 |
| 1934 | 21 |
| 1935 | 30 |
| 1936 | 8 |
| 1937 | 20 |
| 1938 | 26 |
| 1939 | 45 |
| 1940 | 24 |
| 1941 | 31 |
| 1942 | 54 |
| 1943 | 26 |
| 1944 | 41 |
| 1945 | 5 |
| 1946 | 51 |
| 1947 | 67 |
| 1948 | 55 |
| 1949 | 40 |
| 1950 | 76 |
| 1951 | 79 |
| 1952 | 45 |
| 1953 | 63 |
| 1954 | 61 |
| 1955 | 54 |
| 1956 | 55 |
| 1957 | 43 |
| 1958 | 31 |
| 1959 | 33 |
| 1960 | 32 |
| 1961 | 44 |
| 1962 | 58 |
| 1963 | 38 |
| 1964 | 51 |
| 1965 | 32 |
| 1966 | 10 |
| 1967 | 14 |
| 1969 | 18 |
| 1970 | 38 |
| 1971 | 14 |
| 1972 | 32 |
| 1973 | 7 |
| 1975 | 6 |
| 1976 | 20 |
| 1978 | 5 |
| 1980 | 21 |
| 1981 | 12 |
| 1985 | 6 |
| 1987 | 10 |
| 1988 | 10 |
| 1998 | 5 |