8 effective ways to visualize data about elections

14.08.2024 by Anete Ezera

There are different ways to visualize data. Different chart types can reveal specific insights even from the same dataset. For example, a line chart effectively illustrates trends in website traffic over time. However, a bar chart compares visitor numbers across different platforms. To delve deeper, a pie chart can show the distribution of traffic sources, providing a comprehensive overview of website performance. The same applies to election data and election results. 

Using different charts and graphs can showcase multiple sides to the same story about voter turnouts, demographic trends, campaign spending, and more. Identifying best ways to visualize data and learning how to visualize data about elections is key. 

So if you’re looking for different ways to visualize data about elections, look no further. In this article, we’ll list 8 effective ways to visualize data about elections. Also, we’ll provide a simple guide on how to visualize data using different charts and maps. 

Voting box and election image,election


Working with election data


Visualizing election data can be a powerful way to understand and communicate the results and trends. It allows stakeholders, from the general public to policymakers, to understand the complexities of electoral outcomes, demographic influences, and voter behavior. However, working with election data requires careful consideration of various factors to ensure accuracy, fairness, and meaningful interpretation. 

Tips on visualizing election data

Here’s a list of important considerations to take into account when collecting, analyzing, and visualizing election data.

Data source reliability: The accuracy of election analysis depends on the reliability of the data source. Always verify that the data comes from reputable and official sources, such as government electoral bodies, trusted news organizations, or established research institutions.

Geographic granularity: Election data can be analyzed at various levels, from national to local results. Understanding the geographic granularity is crucial as trends can differ significantly between regions, urban vs. rural areas, or even within different neighborhoods.

Voter demographics: Demographic factors such as age, race, gender, income, and education level can influence voting behavior. Incorporating these variables can provide deeper insights into election results, helping to identify trends and shifts in voter preferences over time.

Turnout rates: Voter turnout is a critical factor in elections. High or low turnout can drastically affect outcomes, especially in close races. Comparing turnout rates across different regions, demographics, and election cycles can reveal important trends and potential areas of voter disengagement or mobilization.

Voting methods: With the rise of various voting methods such as absentee ballots, early voting, and mail-in voting, it’s crucial to account for how these methods might affect results. Different groups may prefer different methods, which can introduce biases if not carefully analyzed.

Historical context: Understanding the historical context of an election can provide important insights. Comparing current data with past elections can highlight trends, shifts in voter loyalty, and the impact of major events or changes in policy.

Electoral systems and rules: Different countries or regions may use various electoral systems (e.g., first-past-the-post, proportional representation). The rules governing how votes translate into seats or power significantly influence the outcome and should be considered when analyzing data.

Margin of error and uncertainty: All data analyses come with a degree of uncertainty. It’s important to consider the margin of error, particularly in polls or projections, and to clearly communicate these uncertainties when presenting findings.

Data visualization methods: How data is presented can significnatly influence interpretation. Choosing the right visualization technique—maps, bar charts, line graphs, or more complex visualizations like heatmaps—can help communicate the story the data tells. However, make sure you avoid misleading representations.

Bias and ethical considerations: Always be mindful of potential biases in data collection, analysis, and presentation. Ensure that the analysis is as objective as possible. Plus, consider the ethical implications of how data might be used or misinterpreted.


By taking these considerations into account, you can ensure your analysis of election data is accurate, meaningful, and ethically sound, providing valuable insights into the electoral process and outcomes.

8 powerful ways to visualize data about elections

Now that we’ve established grounds for creating accurate and insightful election charts, let’s explore different ways to visualize the data. Here are eight ways to visualize election data, along with specific examples and use cases.

1. Choropleth map

Choropleth maps use different shades or colors to represent data values across geographic regions. They are particularly useful for showing how voting patterns vary across different areas. For instance, in an election, a choropleth map can highlight regions with strong support for different candidates. This can reveal geographic trends and regional differences in voter preferences. Additionally, you can use them to visualize voter turnout rates by district.

Choropleth maps are useful for highlight geographic trends, revealing spatial patterns and regional variations in voting behavior. This allows for easy comparison of support levels for different candidates across various regions, offering valuable insights into how local issues or demographics influence voter preferences.

2. Bar chart

Bar charts are simple yet effective tools for comparing quantities. They are ideal for displaying the total number of votes received by each candidate. This makes it easy to see who has the most support. Also, you can use bar charts to compare voter turnout by age group or to analyze the number of early versus election-day votes across different states.

Overall, bar charts are highly useful in election data analysis since they can facilitate quick comparisons of different candidates’ performance. They are straightforward and easy to interpret, making them accessible to a wide audience. Also, bar charts can display detailed breakdowns, such as votes by demographic, providing a clear and concise visual representation of complex data.

3. Pie chart

Pie charts represent data as slices of a circle, where each slice’s size is proportional to its percentage of the total. This visualization is useful for showing the distribution of votes among candidates, helping to illustrate each candidate’s share of the total vote. They can also be used to display the percentage of votes coming from different voting methods (e.g., mail-in, early voting, in-person).

Pie charts are useful for election data analysis as they clearly display the proportion of votes each candidate received, making them simple and easy to understand at a glance. Their visual impact is particularly effective for presentations and reports, providing a clear and compelling way to communicate electoral outcomes.

4. Line chart

Line charts are ideal for showing trends over time. They can track changes in voter turnout across different election years, helping to identify trends and patterns. Line charts are also useful for analyzing how support for a candidate fluctuates during a campaign or visualizing the progression of early voting rates as election day approaches.

Overall, line charts allow for easy comparisons of past data and helping in forecasting future trends. Additionally, line charts can reveal cyclical patterns or demonstrate the impact of significant events on variables such as voter turnout. This makes them invaluable for understanding underlying patterns in data.

5. Heat map

Heat maps use color to represent data density or intensity. They are useful for visualizing voter turnout across different precincts, showing where voter engagement is high or low. Heat maps can also be applied to analyze campaign spending intensity across regions or to identify areas with a high concentration of undecided voters.

Also, heat maps are valuable tools for visualizing voter turnout. They effectively highlight areas of high and low voter density, making it easier to identify regions with strong or weak voter engagement. This insight is crucial for strategic planning, as heat maps can guide resource allocation by pinpointing where voter outreach efforts should be concentrated to maximize impact.

6. Bubble chart

Bubble charts display data points as bubbles, where the size of each bubble represents a third variable. This is useful for comparing campaign spending across states and candidates. They can also be used to visualize the relationship between candidate visits to different regions and subsequent changes in polling numbers.

Bubble charts also allow for easy comparisons of spending across different states and candidates, making it clear where resources are being concentrated.

7. Scatter plot

Scatter plots are used to examine the relationship between two variables. They can show how socioeconomic factors correlate with voting patterns, revealing underlying trends and influences. Scatter plots are also valuable for analyzing the relationship between campaign spending and election outcomes or for studying the impact of media coverage on candidate support.

Furthermore, scatter plots also help in detecting outliers and anomalies in the data, which can provide valuable insights into unusual patterns or unexpected relationships within the dataset.

8. Tree map

Tree maps use nested rectangles to represent hierarchical data, with the size of each rectangle proportional to the value it represents. They are useful for showing the distribution of seats among political parties. Tree maps can also be used to visualize the breakdown of campaign contributions by donor category or to show the allocation of electoral votes across different states.

Tree maps are effective tools for displaying hierarchical data. They also make it easy to compare the relative size of various categories. Additionally, tree maps maximize the use of visual space, providing a comprehensive overview that is both efficient and visually clear.

Infogram: Best way to visualize data


In conclusion, the diverse range of data visualization options each offers unique insights into election data. These charts and maps not only simplify the interpretation of complex datasets but also improve our understanding of electoral dynamics by highlighting trends, correlations, and patterns across various dimensions. Tools like Infogram, a powerful data visualization platform that provides all these chart types and integrates AI functionalities, further amplify the effectiveness of election data analysis.

With Infogram, users can visualize election data more efficiently, enabling researchers, campaigners, and policymakers to make informed decisions, tailor strategies, and contribute to a more transparent and impactful electoral process. To explore Infogram, sign up today and try it out for yourself!