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