Facebook AI Maps Population Density

Facebook expects to release its worldwide maps of human density in the coming months—potential applications will likely be somewhere on the spectrum between humanitarian and commercial.

1 minute read

April 11, 2019, 6:00 AM PDT

By James Brasuell @CasualBrasuell


Country Grid

Counting population density isn't always this easy. | Google Maps

James Vincent reports on Facebook's project to map the world's population density using artificial intelligence (AI), which the social media company launched in 2016.

Vincent's coverage follows a blog post from Facebook updating progress for the project.

As Facebook explains, creating maps like this is a challenging job for humans. Although we have high-resolution satellite imagery that covers pretty much every corner of the globe, turning this into useful information is a time-consuming process. To create population density maps, for example, humans have to label each building in the images, then cross-reference this with census data. This is particularly tricky in the African continent where census tracts can cover regions as large as 150,000 square miles but contain just 55,000 people.

Facebook is hacking the tedium of the project of mapping the world with the help of AI. "To automate this process, Facebook’s engineers used data from open-source mapping project Open Street Map to train a computer vision system that can recognize buildings in satellite imagery. They then used this to remove the vast majority of the satellite data that showed unoccupied land," according to Vincent.

Facebook's post emphasizes potential humanitarian applications for the mapping project. Vincent, however, suggests that the maps have obvious commercial applications as well.

Tuesday, April 9, 2019 in The Verge

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Use Code 25for25 at checkout for 25% off an annual plan!

Redlining map of Oakland and Berkeley.

Rethinking Redlining

For decades we have blamed 100-year-old maps for the patterns of spatial racial inequity that persist in American cities today. An esteemed researcher says: we’ve got it all wrong.

May 15, 2025 - Alan Mallach

Logo for Planetizen Federal Action Tracker with black and white image of U.S. Capitol with water ripple overlay.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

May 14, 2025 - Diana Ionescu

Front of Walmart store with sign.

Walmart Announces Nationwide EV Charging Network

The company plans to install electric car chargers at most of its stores by 2030.

May 7, 2025 - Inc.

Public Market sign over Pike Place Market in Seattle, Washington with pop-up booths on street.

Seattle’s Pike Place Market Leans Into Pedestrian Infrastructure

After decades of debate, the market is testing a car ban in one of its busiest areas and adding walking links to the surrounding neighborhood.

May 15 - Cascade PBS

Yellow and silver light rain train in downtown Long Beach, California.

The World’s Longest Light Rail Line is in… Los Angeles?

In a city not known for its public transit, the 48.5-mile A Line is the longest of its kind on the planet.

May 15 - Secret Los Angeles

Man reaching for young girl sliding down playground slide.

Quantifying Social Infrastructure

New developments have clear rules for ensuring surrounding roads, water, and sewers can handle new users. Why not do the same for community amenities?

May 15 - Happy Cities