Surname distribution maps for Croghan
There are approximately 130 people named Croghan in the UK. That makes it the 16,726th most common surname overall. Out of every million people in the UK, approximately 2 are named Croghan.
Croghan in the 1881 Census
Croghan in the 21st Century
The maps, if available, show both where there are more people named Croghan and where they are most concentrated.
The darker the colour, the more people in that county are named Croghan.
The larger the dot, the greater the proportion of people in that county are named Croghan.
Hovering over the dots will give you the individual statistics for that county.