Surname distribution maps for Colby
There are approximately 1,006 people named Colby in the UK. That makes it the 7,163rd most common surname overall. Out of every million people in the UK, approximately 16 are named Colby.
Colby in the 1881 Census
Colby in the 21st Century
The maps, if available, show both where there are more people named Colby and where they are most concentrated.
The darker the colour, the more people in that county are named Colby.
The larger the dot, the greater the proportion of people in that county are named Colby.
Hovering over the dots will give you the individual statistics for that county.