In Croatia, Lončarec families are Croats (from Klanjec area ). In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Klanjec area.
Prevalence
About 40 people with faimily name Lončarec live in Croatia today, in 19 households. There were 40 of them in the middle of the past century, and their number remains constant. They are located in only four naselja i to in Zagreb (30), Zagorska Sela in Klanjec area (<10), Kumrovec in Pregrada area (<5), and in Plavic in Klanjec area (<5).
Outside Croatia
Family name Lončarec is present in this form only in Croatia.
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.