Slukan families are Croats and they are mostly from Krapina area. In the past century, relatively most of Croatian residents bearing this family name were born in Krapina area and in Zagreb. In Gorjani Sutinski in Krapina area every ninth inhabitant had the family name Slukan.
Prevalence
About 210 people with faimily name Slukan live in Croatia today, in 90 households. There were 160 of them in the middle of the past century, and their number increased by 30 percent. They are located in the most of Croatian counties, in 17 cities and 23 other places, mostly in Zagreb (40), in Radoboj (35) and Gorjani Sutinski (25) in Krapina area, Josipovac (15), and in Kutina (10).
Outside Croatia
Family name Slukan (including: Sluchan , Ssellukan ) is present in 6 countries on three continents. "Sluchan " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 2007 in source Encyclopaedia of Croatian Surnames.