By his wife, whose name is unknown, Plancus had a son and a daughter: Lucius Munatius Plancus (ca 45 BC - aft. 14), consul in 13 and legate in 14, who married Aemilia Paulla, daughter of Aemilius Lepidus Paullus and wife Cornelia Lentula; and Munatia Plancina (ca 35 BC - aft. 20), wife of Gnaeus Calpurnius Piso.