ARONA, a town in Piedmont, Italy, province of Novara, on Lake Maggiore, 3m. from its southern extremity, 23m. N. of Novara, and 42m. N.W. of Milan by rail on the Simplon line. Pop. (1931) 6,895 (town), 8,989 (commune). On a hill to the north a colossal bronze statue of S. Carlo Borromeo (born here 1538) was erected in 1697.