Italy as one price level
Every comparison on this page treats Italy as a single place, because that is how the price data is published. Eurostat produces purchasing power parities for whole countries, and no official annual series breaks them down by region or city. Milan, Rome and a town in Calabria therefore carry the same figure here, even though the gap between them, above all in rents, is one of the widest in western Europe. Read an Italian figure as a national average, adjust upwards for Milan and the large cities of the north and centre, and downwards for much of the south.
When the other side of the comparison is a US state, that side does have its own figure, but it is chained rather than measured. Nobody publishes a price level for Texas in euros. Eurostat publishes one for the United States as a whole, the Bureau of Economic Analysis publishes an index placing each state against the American average, and the state figure is the first scaled by the second. That is the standard construction and it still rests on one assumption more than a comparison between two countries does.
Where Italian prices tend to sit
Italy's overall price level is close to the European Union average: below Germany, France and the Netherlands, above Spain and Portugal. Housing comes out below the average on the national figure, while eating out sits a little above it. Where the other side is another European country, the breakdown table can show those components separately, because Eurostat publishes a parity for each of them. Where the United States or the United Kingdom is involved, only the whole basket is comparable: Eurostat publishes their headline parity but not the component detail, so the table stops at the total instead of estimating the rest.