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