Asti is a comune of 74,348 inhabitants located in the Italian region of Piedmont, about 55 kilometres east of Turin, in the plain of the Tanar…Asti is a comune of 74,348 inhabitants located in the Italian region of Piedmont, about 55 kilometres east of Turin, in the plain of the Tanaro River. It is the capital of the province of Asti and it is deemed to be the modern capital of Montferrat.