Population Geography

Population geography is the study of how topography and geography affects population distribution, composition, migration, and development.

An AI drawing of a cite with buildings organized in circles.

Using AI to Design Cities

Mark Altaweel

Researchers now are trying to use artificial intelligence techniques, including deep reinforcement learning, to design more efficient and sustainable urban spaces.

Shaded relief map with yellows and greens to show the change with every US Census for the mean center of population which is shown as red dots.

Population Center of the United States

Caitlin Dempsey

Every ten years, the U.S. Census Bureau maps out the mean and median population centers in the United States.

Satellite image of an algae bloom off the coast of New York and New Jersey, August 3, 2015.

Geography of Sewage Contamination in the Ocean

Elizabeth Borneman

80% of the sewage produced by the global population makes its way into the world’s oceans untreated.

A cabin in a wildland-urban interface. Photo: Glacier National Park, National Park Service, public domain.

The Wildland-Urban Interface is Growing in the United States

Julian Marks

More people in the United States are moving from urban areas into more natural landscapes.

Map of Mongolia. Source: CIA, 1996.

Which Country is the Least Densely Populated?

Caitlin Dempsey

Found out which country is the least densely populated and which territory is the least densely populated in the world.

Crowded street in Tokyo, Japan by Alex Block

Study Forecasts World Population to Peak in 2064

Elizabeth Borneman

A report recently published by the University of Washington has estimated that the global population would peak in 2064 at 9.7 billion before declining to 8.8 billion in 2100.

Projected geographical shift of the human temperature niche from current (A) to 2070 (B). Map C shows shaded areas of red where suitability has shifted the most from suitable to less suitable. Maps: Xu et al., 2020.

Study Estimates That 3 Billion People Will Be Living In Extreme Heat By 2070

Katarina Samurović

Researchers used data from UN population projections to map out how a three-degree warming scenario will translate into temperature changes for the world's population.

Various types and sizes of plastics collected from the Kinnickinnic River, Milwaukee, WI. Photo: S. Mason, State University of New York at Fredonia. Public domain. Source: USGS.

The 2018 Statistic of the Year is About Plastic Recycling

Caitlin Dempsey

90.5% of all plastics that have ever been produced have never been recycled.

Geography and Family Structure

Mark Altaweel

Factors of geography, economics, and social trends have contributed to diverse ranges of household formation.

Tree establishment at large villages of the Jemez Province. (Upper) Number of trees and dates of establishment at Kwastiyukwa (LA 482), Tovakwa (LA 484), and Kiatsukwa (LA 132/133). (Lower) locations of sampled trees at Kwastiyukwa (Left), Tovakwa (Center), and Kiatsukwa (Right). From: Liebmann et al, 2016.

Using LiDAR to Show How Native American Depopulation Impacted Forests in the United States

Elizabeth Borneman

Researchers have used LiDAR to understand the impacts of Native American population decline on forest fires in the United States.

Screen shot from the World City Populations 1950 - 2035.

Mapping Worldwide Population Growth

Elizabeth Borneman

A map was recently created by a a researcher from the Centre for Advanced Spatial Analysis, University College London that tracks where and when population has grown in various places around the world.

Providing Good Directions Depends on the Order of the Words

Caitlin Dempsey

How you order words when giving directions affects how quickly recipients can successfully follow those directions.

A picture of open water at a sewage treatment plant.

Tracking Populations Using Sewage

Elizabeth Borneman

Scientists and researchers have recently begun tracking the populations of cities in the United States using the amount of sewage produced.

Map of Where the Population of Europe Is Growing and Where It’s Declining

Elizabeth Borneman

An interactive map of Europe has been compiled with census data showing areas of the continent where the population is growing and declining.

Population density (people per km2) by country.

Ten Things to Know About the World’s Population

Elizabeth Borneman

Here are 10 of the most interesting facts about the world population from the past, present, and what they can mean for the future.