Češković families are Croats and they are mostly from Dugo Selo area. In the past century, relatively most of Croatian residents bearing this family name were born in Zagreb and Velika Gorica. In Prevlaka in Dugo Selo area every fifth inhabitant had the family name Češković.
Prevalence
About 120 people with faimily name Češković live in Croatia today, in 50 households. There were 150 of them in the middle of the past century, and their number decreased by 20 percent. They are located in 7 Croatian counties, in 10 cities and 23 other places, mostly in Donja Lomnica (25), Zagreb (25), Karlovac (<10), Preloscica (<10), and in Posavski Bregi (<10).
Outside Croatia
Family name Češković (including: Ceskovic , Cheshkovich ) is present in 6 countries.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over ten times, the first time 1906 in source Yearbook and Directory of Literary Society of St. Jerome 1906.