Only a few people with faimily name Armstrong live in Croatia today, in households. They are located in only five naselja i to in Zagreb (<5), Buzeta (<5), Split (<5), Podstrana in Solin area (<5), and in Povlja on the Island of Brac (<5).
In the sources analysed in the project Acta Croatica so far, the name is mentioned few times, the first time 1931 in source Emigration Commission Zagreb.