Below plot is the Treemap for the charateristics of massachusetts populations by county, by changing the filter we can have an understanding of population in different counties. We can also find the rank of different characters in one single county and the rank of specific character in different counties easily.

But we can also find the drawbacks of using Treemap for this dataset.

1. The first problem there is that the Treemap doesn't show each single culumn well due to too many columns in this dataset so it makes audience hard to get all of the information from the data.

2. The second problem there is that The Treemap doesn't show number in a good manner. We need to move mouse to each single cells to check the exact population there is which makes us hard to get a numerical understanding about the data.

3. Maybe a bar hierachy chart or radial chart can do a better job for this problem.