NOTE: This has been updated to counts of shows with each song rather the first number being all performances in the state. This removes HYHU from every state but Florida, and addresses other anomalies. For example, HYHU, Weekapaug, and Mike's all have been played in Georgia more than any other songs - but Possum is the song that appears in the most shows.)
There are five states (shaded black) in which Phish has not yet performed. In fifteen more (those in grey), there is a tie for the most common song performed, ranging from every song at the one Oklahoma show, to a tie between only Chalk Dust and Wolfman's among the 43 shows in Washington state.
For the remaining 30 states, this map shows the most common song performed in each state, the number of that state's shows in which it was performed, and the number of shows in that state. There are some vague patterns, such as "Possum" in the far northeast (geographically ironic), a spotty "YEM" Belt (settled like a belly above the Bible Belt), and "Chalk Dust" spread far and wide.
States that share a most common song are colored the same (such as California, Texas, Kentucky, Ohio, and New Jersey each having "Chalk Dust Torture" most commonly, and all in green). Those in pink have a unique most-common song (such as, fittingly, "Alumni Blues" in Vermont).

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