Mapbox for Elections

Resources to map democracy

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Mapbox lets everyone access the tools to visualize, understand, and tell the story of democracy. We've created data resources, technical solutions, and tutorials to help all builders make modern election maps at any scale.

Resources

Albers USA projection style

Albers USA projection style containing all 50 US states + Puerto Rico, and their counties.

2004-2016 presidential elections tilesets

Ready-to-build tilesets containing US presidential general election returns and demographic data from 2004 to 2016, powered by Mapbox Boundaries.

2020 Speaker series & Contest

Join us for a special speaker series and map contest to explore how location drives voter engagement and shapes the stories of elections. Create your own map or application - for a chance to win! September 14th - November 30th.

Data joins tutorial

Visualize external or tabular data on a map using a client-side data join

Real-time mapping solution

This solution enables advanced users to build performant and lightweight, real-time data-join using Mapbox. In other words, we’re making it easier for you to join a live dataset — like the reporting of election returns by county — to geometries in a Mapbox tileset.

Full US legislative coverage in Mapbox Boundaries

Analyze data and returns at multiple levels with updated geometries and metadata for states, congressional districts, counties, and state legislative districts.

Tell a story about elections

A visual tour of ways to use our free 2004-2016 elections tilesets, using the storytelling template

Visualizing Election Data: A guide to Expressions

Part one of a guide series on electoral maps and data visualization. In this tutorial, we dig into how to use Expressions rules for data-driven styling.

Live Electoral Maps: A Guide to Feature State

Part two of a guide series on electoral maps and data visualization. In this tutorial, we explore how to use Feature State to style features dynamically as your data source updates.

Designing Electoral Maps: Exploring Mapbox GL JS

Part three of a guide series on electoral maps and data visualization. This tutorial explores designs and tips on how to create you can create your own unique election maps using Mapbox GL JS and Studio.

Texas disenfranchises voters

Isochrone analysis shows 2 million+ negatively impacted in Harris County

ProPublica: How well are your elections run?

Visualization of survey data from local election officials in 2016

New York Times: An Extremely Detailed Map of the 2016 Election

Drill into precinct level results data

New York Times live-mapping Virginia election

Examining results by precinct, estimated votes remaining, lead margin, and electoral shift

VoteAmerica's 'Where to vote' tool

Help voters find their early voting locations, ballot drop-off boxes, or polling station

Mapping the US elections: 2020 guide to feature state

Use the Feature State API and Albers USA for a live-updating map.

Mapping the US elections: Guide to Albers USA projection in Studio

Albers USA is a popular projection for US-centric visualizations because it shows a scaled-down Alaska and Hawaii close to the rest of the states.

How the NYT mapped every dollar in the Democratic Primary

Behind the scenes with Graphics Editor Josh Katz.

Pro Publica: How North Carolina’s Early Voting Changes Affect Voters

Residents of poor and rural counties have to drive farther than others. Explore the data.

How El País tells stories with data

Daniele Grasso and Kiko Llaneras share how they created some of their most-read stories.

Washington Post’s Electoral Maps: How we built it

By: Armand Emamdjomeh, Washington Post interactive graphics reporter.

Adding truth to the election debate

When truth is increasingly subjective, maps can be a canvas for people to understand data.

The shapes shaping democracy

ACLU’s “What The District?!” visualizes 65 years of changing congressional district boundaries.

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