Slovenia Population, Millions. Units: Persons. Multiplier: Millions. Estimates begin after 2015 . This data is sourced from www.opendataforafrica.org where it is offered under an open data licence (www.opendataforafrica.org/legal/termsofuse). For census purposes, the total population of the country consists of all persons falling within the scope of the census. In the broadest sense, the total may comprise either all usual residents of the country or all persons present in the country at the time of the census. [Principles and Recommendations for Population and Housing Censuses, Revision 1, paragraph 2.42] Source: National Statistics Office Latest actual data: 2015 Primary domestic currency: Euro Data last updated: 09/2016.