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