Can you name the ten most populous cities in North America?
I tried and I know that I didn’t get them all. Specifically, I missed a few cities of our neighbors to the south in Mexico and the north in Canada, which probably speaks to my poor knowledge of geography more than anything else.
Here is the list (taken from Wikipedia), compiled based on the most recent census data from each county:
| Rank | Country | City | Population | Census Year |
| 1 | Mexico | Mexico City | 8,873,017 | 2010 |
| 2 | USA | New York City | 8,175,133 | 2010 |
| 3 | USA | Los Angeles | 3,792,621 | 2010 |
| 4 | USA | Chicago | 2,695,598 | 2010 |
| 5 | Canada | Toronto | 2,503,281 | 2006 |
| 6 | USA | Houston | 2,100,017 | 2010 |
| 7 | Canada | Montréal | 1,854,442 | 2006 |
| 8 | Mexico | Tijuana | 1,784,034 | 2009 |
| 9 | Mexico | Ecatepec de Morelos | 1,658,806 | 2010 |
| 10 | USA | Philadelphia | 1,556,396 | 2010 |
It’s nice to have them all in a list, but if we graph this data we can hopefully get some additional value from this information.
Now, let’s take a look at this data in graph format:
Some thoughts:
- Spacial Value of a Bar Chart – By laying things out in a bar chart, we can really see the magnitude of difference between the top two cities (New York and Mexico City) in comparison with the rest of the continent.
- Smart Use of Color – Instead of leaving every bar the same color (or even making each bar a different color) the use of color on the chart can help us deliver a little more information value by segmenting further represent countries.
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