The Primorsko-notranjska statistical region had the lowest share of Slovenia’s population in 2021 (2.5%). The region also stood out with the lowest population density (37 persons per square kilometre). A natural decrease was negative in 2021 (-1.9 per 1,000 population), while net migration was positive (3.1 per 1,000 population). The share of foreign nationals in the population was 8.6%. Only Osrednjeslovenska and Obalno-kraška had higher shares of foreign nationals. 9.7 children per 1,000 population were born here in 2021, ahead of only Jugovzhodna Slovenija. The mean age at death was 79.8 years, the highest at the regional level. The region stood out with the highest share of men (51.2%). The share of population aged 14 and under was 15.5%, while the share of population aged 65 and over was 22.0%, both above the national average and the fourth highest. The share of population aged 15–64 was the second lowest (62.5%), 2.5 percentage points lower than the national average, while the share of population aged 80 and over was the second highest (6.0%), 0.5 of a percentage point higher than the national average.
In 2021, the highest employment rate was recorded in this region: 71% of the working age population were in employment. This region together with Gorenjska recorded the lowest LFS unemployment rate in the country at 3.3%. 42.6% of persons in employment from this region worked in another statistical region, a large majority of them in the Osrednjeslovenska statistical region. The share of people who worked outside the region of residence was the second after Zasavska (53.3%). The difference between the employment rate for men and women in the region was the second largest at 10 percentage points. Average monthly net earnings were the lowest in the country. They amounted to EUR 1,139, which was EUR 131 less than the national average. The region is among the weakest in terms of the economy. GDP per capita was the third lowest among the regions (EUR 17,584). This region contributed 1.8% to Slovenia's GDP. There were just over 4,700 enterprises operating in the region; each employed on average 3.4 people. In terms of the number of passenger cars per 1,000 population (610) and their average age (11.7 years), the region was second. Of the total amount of wastewater generated in 2021 in this region, 97.6% was treated before discharge into the public sewerage system. This was the second highest share among the regions. On average, 436 kilograms of municipal waste were generated per capita, the third lowest among the regions. 15.8% of people lived in overcrowded dwellings, with only Zasavska having a higher share (16.3%).