Lah families are predominantly Croats and they are mostly from Nasice , rarely Slovenes. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Nasice.
Prevalence
About 90 people with faimily name Lah live in Croatia today, in 40 households. There were 120 of them in the middle of the past century, and their number decreased by 20 percent. They are located in the most of Croatian counties, in 11 cities and 9 other places, mostly in Zagreb (20), Varazdin (15), Cakovec (10), Slatina (<10), and in Velika Gorica (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned over twenty times, the first time 1902 in source Hartmann's General List of Apartments in Zagreb.