• Data visualization

How to Create a Color Coded Map

Liam Costello by Liam Costello on January 7, 20149 minute read

Quick answer

Color coded maps use different colors to represent data values across geographic regions, making complex datasets instantly interpretable. Upload your spreadsheet data to a mapping platform, link it to geographic boundaries, choose your color classification method, and customize the appearance to best convey your data story before sharing or exporting.

What is a Color Coded Map and Why Use It?


A color coded map is a visual tool that uses different colors to represent data values across geographic regions, such as zip codes, sales territories, or districts. This type of map makes it easy to spot patterns and compare performance based on geographic data, especially when combined with our business mapping solutions.

With a color coded map, you can:

  • Instantly visualize trends across territories or regions
  • Identify underperforming areas or gaps in coverage
  • Support data-driven decisions for marketing, HR, or sales planning

eSpatial's color-coded maps are especially useful for spotting geographic disparities at a glance, making complex datasets easier to interpret and act on.

Simple color-coded maps should not be confused with heat maps, which use graduated colors to express values within a region. You'll find a good description of heat maps here, and for more information, check our thematic mapping guide.

Steps to Create a Color Coded Map


With eSpatial, you start by uploading your data, and the platform automatically maps this information to the correct geographic boundaries, like ZIP codes or regions. It then applies color bands to visually highlight differences, making it easy to spot trends, patterns, and outliers at a glance.

Let's take a closer look at how to create a color coded map using these easy steps:

Step 1

Prepare Your Data

Organize your data into a spreadsheet with clear column headings so the mapping software can geocode and group your data accurately. At a minimum, you'll need:

  • Location data (like addresses, ZIP/post codes, or coordinates)
  • A field you'll use to color code the map, such as sales figures, territory names, or customer segments

You can upload your data from a CSV or Excel spreadsheet. Whichever you choose, it's important that your data is clean, structured, and ready to map. Learn how to correctly format your data before uploading to eSpatial.

Step 2

Import Map Locations

Log in to your eSpatial account and click Add Data, locate the file, open it, and upload it to eSpatial. When you upload a CSV file, you will be shown the location column(s) that the software has found within the spreadsheet.

Add data to map

On the next screen, select the side-menu option Link to boundary and then click Configure. Select a geographic boundary dataset.

Link to boundary dataset

If the boundary dataset you're looking for is not in your Datasets list, simply click the eSpatial Datastore tab. Then scroll down or search to find the relevant boundary dataset, and click Select.

Configure the link to boundary dataset

Click the Datasets tab again, and it should be added to the list.

The next step is to connect the data with the boundary.

Once you have selected my boundary dataset, click Next, which brings you to a panel where you can link a field in my dataset to a field in the boundary dataset.

Clicking OK returns you to the Settings panel, which allows you to confirm the boundaries you are linking:

Link the boundaries in both datasets

You will then be taken to another screen to upload the data and link it to the boundary dataset. Here, you can also give this combination of the uploaded dataset and boundary a new name. This will be useful if you decide to later plot a new layer of data on top of this new dataset.

All that remains to do is click Complete, and the upload process will begin.

Upload your configured data

Step 3

Choose Classification Method

After your data is linked to boundaries, decide how to color code your map based on what you want to show. In eSpatial, go to the Legend menu and click the paintbrush icon next to your dataset name.

This opens options to group and classify your data:

  • Color by numeric range (e.g., sales, revenue, customer counts)
  • Color by unique value (e.g., regions, teams, product types)

Choosing the right classification makes your data story clearer, whether you're highlighting performance, category differences, or coverage.

Step 4

Assign Color Schemes

Once you've chosen your classification, it's time to pick the colors that will bring your map to life.

Click the Style button to open the Style & Color menu, then select Color By Value to see your options. Here, you can:

  • Customize colors to match your brand or make contrasts clearer
  • Choose shades that highlight key data patterns

After selecting your colors, click the save icon before closing the menu.

Color by value options

Step 5

Customize Map Appearance

Beyond colors, you can fine-tune how your map looks to make it clearer and more professional. In eSpatial, you can:

  • Adjust pin styles, sizes, or shapes to highlight key points or categories
  • Edit labels and tooltips to show the most important data at a glance
  • Add or customize a legend so viewers understand what each color and shape represents
  • Overlay additional layers, like boundaries or competitor locations, for extra context

Step 6

Export or Share the Map

When your color coded map is ready, you can:

  • Export it as an image or PDF for reports and presentations
  • Generate a secure shareable link to a live, interactive version of your map
  • Copy the embed code to add the map to a webpage, dashboard, or intranet
  • Export the underlying mapped data (with filters applied) to a CSV file for further analysis in Excel or another tool

Map export options

Best Practices for Color Coding Maps


Follow these best practices to make sure your maps are clear, accurate, and easy to read:

  • Keep it simple: Don't overload your map with too many colors or categories
  • Use meaningful colors: Choose colors that make sense to your audience (e.g., warmer colors for higher values, cooler for lower)
  • Maintain contrast: Pick colors that stand out from each other so patterns and differences are easy to see
  • Add a clear legend: Always include a legend explaining what each color means
  • Test your map: Share it with colleagues or stakeholders to check if the story it tells is immediately clear

Master the Art of Creating Color Coded Maps


Knowing how to create a color coded map lies in balancing clarity, design, and the right choice of colors to tell your story at a glance. With eSpatial's easy-to-use GIS mapping software, you can bring your data to life and create maps that look as professional as they are practical.

Ready to create a color coded map? Check out our pricing and plan options.

Create Your Own Color Coded Map Today

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