Province of Gorizia
Today, the majority of the region is in Slovenia, with around 60% of the territory and 80% of the inhabitants. The Slovene part of the Gorizia Hills lies entirely in the Municipality of Brda. The Italian part lies within the boundaries of the Province of Gorizia, and it's divided among the municipalities of San Floriano del Collio, Cormons and Dolegna del Collio.