Southwestern planning region includes an area of 20306,4 sq.m. and is second by territory from all planning regions in Bulgaria. The region has 5 administrative districts: Sofia-city, Sofia region, Pernik, Kiustendil and Blagoevgrad, which include 52 municipalities in total.
Its north boundaries are the regions Montana and Vraca which are part from Northwest planning region and the region Lovec from North central planning region, on east the frontiers are regions Plovdiv, Pazardjik and Smolian from South central planning region. The south and  west border of the Southwestern region coincide with the national border, and due to this the region has boundaries with 3 countries - south border is with Greece, and west borders are with Serbia and Republic of Macedonia.
There are seven Border Cheking Cross Point (BCCP) on the territory of the region. Three of them are located on the border with Serbia, three of them with Republic of Macedonia and one on the border with Greece.
On the territory of the planning region passes important national roads and three of the international transport corridors.

Quick facts about Region South-West Bulgaria
Other transcriptions: Southwest, Southwestern
In Bulgarian Alphabets: Югозападен
Location: South-West Bulgaria
Area size of the region: 20306.4km²
Population of region South-West: 2110037 people
Provinces in South-West Bulgaria: 5 - District Blagoevgrad, District Kyustendil, District Pernik, District Sofia-city, District Sofia
Total Munucipalities in South-West region: 52
Total Towns and Cities in South-West region: 47
Total Villages in South-West region: 905