The underground Karst world with the world famous Postojna Cave and the intermittent Cerknica Lake is the most important feature of this region.
As regards the area, this is one of the smallest regions in Slovenia; and it is the least densely populated, having 6 times lower population density than the Osrednjeslovenska region. A high population growth rate is mainly a result of immigration. In 2008 most of new inhabitants immigrated from abroad. Foreigners contributed about 4% to the region’s population.
The Notranjsko-kraška region is among economically less developed in the country as in 2007 it contributed only 1.9% of Slovenia’s GDP. Craft enterprises presented almost 40% of all enterprises in 2008, which was much more than in Osrednjeslovenska, which had the lowest share of craft enterprises (29%). With only 5 persons in paid employment on average, enterprises in this region were among the smallest in the country. Even though the employment rate was in 2008 with 65.8% the highest in the country, a large number of people from Notranjsko-kraška worked in the neighbouring regions.
Since the number of passenger cars per 1,000 population is very high compared to other regions, people in the region are among the most mobile in the country. On the other hand, Notranjsko-kraška has three times lower road network density than the Podravska region. In 2007, the area of one square-kilometre in Notranjsko-kraška was covered by less than 1 km of public roads.