7 Replies Latest reply on Feb 4, 2017 11:51 AM by Ken Flerlage

Trying to create a map within a map with Tableau Public

James Cannon Jan 9, 2017 6:34 AM

I've very green with Tableau and am currently working with a non-profit to develop a population map of the state of California by county. I've been tasked with adding the populations of the cities within one county to the map as well. To this point I've successfully been able to create the county map but seem to be unable to get the individual cities to show up within the county I'd like. I've gone over all the information I can find but to no avail. Advice would greatly be appreciated.

Thank you.

1. Re: Trying to create a map within a map with Tableau Public

Christina Davis Jan 9, 2017 6:24 AM (in response to James Cannon)

Hi James,
Can you attach your workbook?
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2. Re: Trying to create a map within a map with Tableau Public

James Cannon Jan 9, 2017 6:41 AM (in response to Christina Davis)

The organization uses Tableau Public so I do not have local copies of workbooks to attach. I may be able to send the link to the webpage but I'll need to get authorization to share it first.
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3. Re: Trying to create a map within a map with Tableau Public

Brian Connelly Jan 9, 2017 7:13 AM (in response to James Cannon)

Are you able to upload a screenshot and mark up with comments?
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4. Re: Trying to create a map within a map with Tableau Public

James Cannon Jan 10, 2017 5:48 AM (in response to James Cannon)

Here is the link to the chart I've created on Tableau Public:

https://public.tableau.com/profile/publish/DRAFT-EstimatedCountyPopulation2016/Dashboard1#!/publish-confirm

As you can see, the idea is to create a county map of California. What I'd really like to know is how to take one of the counties and then create city maps in it as well.
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5. Re: Trying to create a map within a map with Tableau Public

Christina Davis Jan 10, 2017 6:01 AM (in response to James Cannon)

Hi James,
So what you are trying to do is certainly possible. I took a look at your workbook and it only has population by county; for the county that you want to split by city you would need to add the population by city as a data source.

Let's say that the county you want to view at the city level is Los Angeles. Once you have your data at the level of population by city for LA I would make a second map the same way you made the county map but do it at the city level and zoom in to just LA. Once you have your two maps you can create a dashboard action that allows you to click on LA in the county map and it will link over to the LA by city map you made.
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6. Re: Trying to create a map within a map with Tableau Public

James Cannon Jan 10, 2017 7:34 AM (in response to Christina Davis)

Thank you for the advice. I thought I might have to make separate maps but had hoped I'd be able to create multiple layers in one. I'll give it a shot and thank you again for the advice.
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7. Re: Trying to create a map within a map with Tableau Public

Ken Flerlage Feb 4, 2017 11:51 AM (in response to James Cannon)

You can also consider using a dual axis map. Essentially, you create two maps showing different data (i.e. county population on one and city population on another) and you then tie them together visually using the dual axis technique. Here's a good primer: Going Dual Axis on Maps | Tableau Public

So, if you wanted to show it all on a single map visually, you can!
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