The coat of arms of San Potito Ultra is an inventory of work: above, on a silver field, two crossed sheaves of wheat; below, on a green meadow, a black-and-white cow. There is no castle, no armed saint, no tower: there is bread and milk, that is what has been done in this village for centuries. And it is consistent that one of the comune's few cultural institutions should be the Museum of Labour. The territory, moreover, is tiny — a little over four square kilometres at 517 metres of altitude, in Irpinia — and it borders six comuni: Atripalda, Candida, Manocalzati, Parolise, Salza Irpina and Sorbo Serpico. Today San Potito belongs to the union of comuni called Terre dei Filangieri.
The name, on the other hand, holds together a martyr and an administrative division. Saint Potitus is the patron, and he is celebrated on 14 January. «Ultra» comes from the Principato Ultra, the province of the Kingdom of Naples the village belonged to: ultra, that is beyond, as opposed to the Principato Citra, on this side — and this side and beyond were counted from Naples, as always. Of the village there remain to be seen the mother church of Sant'Antonio Abate and that of Sant'Antonio da Padova, the confraternity of the Madonna del Soccorso and two noble houses, palazzo Amatucci and palazzo Maffei. The inhabitants are called sanpotitesi and, besides Italian, they speak the Irpino dialect.