Deputies discovered $155,901 inside a box of diapers Monday following a traffic stop north of Ben Bolt.
According to the Jim Wells County Sheriff's Office, Isaias Gonzalez and Brianda Guajardo Perez were stopped as they traveled south on Highway 281 in a white Chevy Malibu.
The traffic stop was conducted with consent from Gonzalez after the deputy heard the couple's conflicting travel plans.
Investigators found seven bundles wrapped in foil and plastic that contained the currency. Another three bundles wrapped with rubber bands were located in a back pack and also in Gonzalez's pocket.
"This is a continuous effort to combat drugs through traffic interdiction in Jim Wells County," said Sheriff Daniel Bueno.
Gonzalez and Perez were booked into the JWC jail.