Jerolimov families are Croats and they are mostly from the Island of Ugljan. In the past century, relatively most of Croatian residents bearing this family name were born in Zadar and on the Island of Ugljan. In Preko on the Island of Ugljan every thirtieth inhabitant had the family name Jerolimov.
Prevalence
About 70 people with faimily name Jerolimov live in Croatia today, in 30 households. There were 80 of them in the middle of the past century, and their number decreased by 0 percent. They are located in four Croatian counties, four cities and 6 other places, mostly in Preko on the Island of Ugljan (40), Zadar (15), Zagreb (10), Rijeka (<10), and in Dubrovnik (<5).
Outside Croatia
Family name Jerolimov is present in three countries on two continents. The family name "Jerolimov " is used by small number of people in the United States.
In the sources analysed in the project Acta Croatica so far, the name is mentioned over five times, the first time 1825 in source Catholic Church Parish Records.