Rihtar families are Croats and they are mostly from Oroslavje area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and in Oroslavje area. In Krajska Ves in Oroslavje area every seventh inhabitant had the family name Rihtar.
Prevalence
About 220 people with faimily name Rihtar live in Croatia today, in 90 households. There were 170 of them in the middle of the past century, and their number increased by 30 percent. They are located in 7 Croatian counties, in 12 cities and 23 other places, mostly in Zagreb (85), Radoboj in Krapina area (55), Lobor in Zlatar area (20), Lepoglava (10), and in Krapina (<10).
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.