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