The patron saints of Ponsacco are Saint John the Evangelist, celebrated in the church dedicated to him, and Saint Constantius the Martyr: the patronal feast falls on the second Monday after the first Sunday of October.
The municipal territory holds the Church of Santi Marco e Lucia and the Church of San Frediano, as well as the Oratory of San Filippo. The town also holds Villa Niccolini and Palazzo Valli.
