Joseph Todd Neill, 36, of Pressgrove Road is charged with statutory rape by an authority figure and sexual battery by an authority figure.
Neill is youth pastor of Northfork Baptist Church.
"His offenses were against a 17-year-old female who was a member of his youth group," Detective Sgt. Brian Crews of the Shelbyville Police Department said. "She was the only victim to my knowledge.
"It appears that he had been grooming her for several months and as a result of the grooming of her and her family the relationship progressed and led to inappropriate touching during the past week on Dec. 31 and Jan. 2."
The girl's parents became suspicious about her closeness with Neill, confronted her and contacted police, according to Crews.
"We are still actively investigating the case," Crews said.