In Croatia, Holland families are Croats (from Zagreb ).
Prevalence
Only a few people with faimily name Holland live in Croatia today, in one household only. There were 0 of them in the middle of the past century, and their number remains constant. They are located in one Croatian city only, in Zagreb (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.