In Croatia, Betzler families are Croats (from Zlatar ). In the past century, relatively most of Croatian residents bearing this family name were born in Zlatar and Zagreb.
Prevalence
About 20 people with faimily name Betzler live in Croatia today, in four households only. There were 10 of them in the middle of the past century, and their number doubled. They are located in only four Croatian places: in Sesvete (<10), Petrusevec (<5), Zlatar (<5), and in Zajezda in Zlatar area (<5).
Outside Croatia
Family name Betzler is present in 12 countries worldwide. The family name "Betzler " is used by some 1000 people in Germany , about 700 in the United States , and some 200 people in Brazil.