Surname distribution maps for Duffer
Duffer in the 1881 Census
Duffer in the 21st Century
Sorry, we don't have any stats for the distribution of Duffer in the 21st Century.
The maps, if available, show both where there are more people named Duffer and where they are most concentrated.
The darker the colour, the more people in that county are named Duffer.
The larger the dot, the greater the proportion of people in that county are named Duffer.
Hovering over the dots will give you the individual statistics for that county.