The total population in Slovenia was estimated at 2.1 million people in 2018, according to the latest census figures. Looking back, in the year of 1960, Slovenia had a population of 1.6 million people. The population of Slovenia represents 0.03 percent of the world´s total population which arguably means that one person in every 3403 people on the planet is a resident of Slovenia. This page provides – Slovenia Population – actual values, historical data, forecast, chart, statistics, economic calendar and news.