Wallin faces up to 20 years in prison and up to $2 million in fines, if convicted.
A federal grand jury has indicted three men from Connecticut, including a priest, and two individuals from California with conspiring to distribute methamphetamine, the U.S. Attorney's office said on Wednesday.
Msgr. Kevin Wallin, who resigned as pastor of Bridgeport's St. Augustine Parish in June 2011, was arrested on Jan. 3 and charged with six counts of possession with intent to distribute crystal meth.
According to the U.S. Attorney's office, Wallin is accused of receiving shipments of crystal meth from a California distributor and selling it to an undercover officer six times between September 2012 and January 2013.
If convicted, he faces up to 20 years in prison and a fine of up to $2 million.
According to the Diocese of Bridgeport, Wallin, 61, resigned from his post after nine years, telling parishioners "that he was struggling with a number of health and personal issues" and he was granted a sabbatical.