The championship began on 29 March 1964 and ended on 4 October 1964.
Tipperary won the title after defeating Wexford 8-9 to 3-1 in the final.
A total of eighteen teams entered the inaugural under-21 championship, however, there was a lop-sides nature to the competition due to the provincial structure.
Galway, who had played in the Munster province at senior and minor levels since 1959, joined the other six traditional Munster teams and competed in the southern championship.
Nine of the Leinster counties, including Louth, more notable as a Gaelic football stronghold, contested the eastern province.