Mexican media said the haul was four times the amount of drug-related money confiscated in Mexico during all of last year.
Police also seized six cars, firearms, around 200,000 euros and machinery used to make pills.
Investigations
Police said the money belonged to a drug gang that smuggled chemicals used to make methamphetamine, a powerful stimulant.
The attorney general's office said the gang operated behind a pharmaceuticals front company which imported tonnes of the chemical pseudoephedrine, used in making methamphetamine, from India.
The raid was the result of an investigation opened in December when police seized 19.5 tonnes of pseudoephedrine in Mexico's Lazaro Cardenas port, the attorney general's office said.
Mexican methamphetamine producers are muscling in on the US market as police crack down on labs in the United States, according to a recent report by the US Justice Department's National Drug Intelligence Center.