In Croatia, Johnson families are generally Croats (from Osijek ), rarely Bosniaks (from Dubrovnik ).
Prevalence
About 20 people with faimily name Johnson live in Croatia today, in four households only. They are located in 6 Croatian counties, in 6 cities, mostly in Zagreb (<10), Dubrovnik (<5), Osijek (<5), Zadar (<5), and in Pula (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1929 in source Emigration Commission Zagreb.