The Trojanowski surname in the 21st century

least concentrated

 

most concentrated

Current distribution data is based on samples from around 2010 to 2015, and is shown on the ceremonial and preserved counties of England and Wales and the Council Areas of Scotland.

The colours show how concentrated a name is in different parts of the county, and not the actual number of people with that name.

BritishSurnames.uk is a Good Stuff website.