Surname distribution maps for Croan
Croan in the 1881 Census
Croan in the 21st Century
The maps, if available, show both where there are more people named Croan and where they are most concentrated.
The darker the colour, the more people in that county are named Croan.
The larger the dot, the greater the proportion of people in that county are named Croan.
Hovering over the dots will give you the individual statistics for that county.