Capodimonte borders the following municipalities via the common border, the lake: Bolsena, Gradoli, Latera, Marta, Montefiascone, Piansano, San Lorenzo Nuovo, Tuscania, Valentano.
In 1513 an engagement contract between Orsini and Pier Luigi Farnese was drawn up, and in 1519 the wedding celebrated at Valentano.
Next to Marta are Valentano and Capodimonte, the latter being built on and around nearly the only headland on the lake, which forms a protective harbor.