In 1820 he visited Portugal, and there collected materials for his Essai statistique sur le royaume de Portugal el d’Algarve, published in 1822 at Paris, where the author resided from 1821 until 1832. This was followed by Variélés politiques et statistiques de la monarchie portugaise, which contains some observations respecting that country under the Roman sway. In 1826 he published the first volume of his Atlas ethnographique du globe, ou classification des peuples anciens et modernes d’après leurs langues, a work of great erudition. In 1832 appeared the Abrégé de Geographie, which, in an enlarged form, was translated. into the principal languages of Europe. Balbi retired to Padua and there died on March 14 1848.
His son, Eugenio Balbi (1812—1884), followed a similar career, being professor of geography at Pavia, and publishing his father's Scritti Geografici (Turin, 1841), and original works in Gea, ossia la terra (Trieste, 1854—1867) and Saggio di geografia (Milan, 1868).