How To: Density Maps in Tableau

5/20/2016 Matt Chambers 3 Comments

I saw an article on density maps in Excel written by John Nelson, and I really liked the effect of showing the density of tornados without representing entire states.  Looking at John's tutorial, all you really need to do is round the latitude and longitude.  This is dead simple to do in Tableau.  Let's see how it's done.

1. Create calculated fields for the rounded latitude and longitude.

2. Drag the rounded latitude and longitude on to the rows and columns shelves.  Make sure that both are continuous dimensions. Set the mark to square and the size in the middle.

3. Drag the dimension you need to the color shelf and turn off gridlines.  Hide both headers as well.

4. Finally, bring the worksheet into the dashboard and size appropriately.  I used 1050 by 550 to get the sizing I liked.

That's it!  Feel free to comment with questions or download the workbook.


  1. Thank you so much.We share that the wonderful information.
    Tableau Training | Angularjs Training

  2. We are very delighted to leave comment here.very informative blog aswell one of the recommanded blog for learners.hope this blog is very useful for new learners.great efforts best reagrds from rstrainings

    Tableau Training Hyderabad

    Learning Tableau Online

    Online Tableau Training in USA

    Online Tableau Training in Hyderabad india

  3. thank you for offering such a nice is very unique content and very helpful for learners and professionals

    Tableau Online Training in hyderabad
    Tableau Online Training