On the day of the event, around 270,000 volunteers, or more than 13% of the Slovenian population participated, making Let's Clean Slovenia in One Day!

A significant number of Slovenian population speak a variant of Serbo-Croatian (Serbian, Croatian, Bosnian or Montenegrin) as their native language.

In 2002, around 0.2% of the Slovenian population spoke Italian and around 0.4% spoke Hungarian as their native language.

It also has to be noted that in the last census in 2002, more than 10% of all Slovenian population decided not to answer the question regarding their ethnic affiliation.

The Muslims constitute 2.4% of Slovenian population.

After the Carinthian Plebiscite, in which majority of the local Slovenian population decided to remain part of Austria, Maister withdrew to private life.

As the majority of the Slovenian population at the time supported some sort of territorial autonomy for Slovenia, this decision proved very damaging for the party's future success.

The Slovenski Dom, or Slovenian National Home, was one of a number of similar halls built in places with large ethnic Slovenian populations.

Soon, German authorities adopted a pragmatic approach regarding the local Slovenian population: public use of Slovenian language was allowed again.

From 1941 to 1944 the town's Slovenian population was dispossessed and deported.