Why Symbol maps in Tableau? - Purpose & Use Cases

The Big Idea

What if you could turn messy location data into clear, colorful maps in just a few clicks?

The Scenario

Imagine you have a spreadsheet full of sales data by city, and you want to show where your customers are located on a map. You try to plot each city manually by drawing dots on a paper or using a basic image editor.

The Problem

This manual method is slow and frustrating. You have to find each city's location, place a dot, and adjust sizes or colors by hand. It's easy to make mistakes, and updating the map when data changes means starting over.

The Solution

Symbol maps in Tableau automatically place symbols on geographic locations based on your data. You can size or color these symbols to show different values, making it easy to see patterns and trends at a glance.

Before vs After

✗ Before

Draw dots on a static map image for each city manually.

✓ After

Drag city field to Tableau map, then add sales data to size or color symbols automatically.

What It Enables

Symbol maps let you quickly visualize complex location data, revealing insights that are impossible to spot in tables or lists.

Real Life Example

A retail manager uses symbol maps to see which stores have the highest sales, spotting regional trends and deciding where to focus marketing efforts.

Key Takeaways

Manual plotting of locations is slow and error-prone.

Symbol maps automate placing and styling symbols on geographic maps.

This makes it easy to understand and act on location-based data.