Festivalen blev planlagt fra 12 sep til 13 sep 2009 (1 dag(e)).
Union County MusicFest finder sted i Clark, United States. Her er den fulde adresse på festivalen: Oak Ridge Park, Clark, NJ
Third Eye Blind, Kenny Wayne Shepherd, They Might Be Giants, Gin Blossoms, Uncle Kracker.
De mest populære genrer og undergenrer i den foregående udgave var:
rock
pop
punk
alternative
alternative rock
indie
indie rock
pop rock
classic rock
indie pop
power pop
southern rock
acoustic
blues rock
college rock
comedy
contemporary blues
emo
garage rock