New Study Debunks Homeless Migration Theory

More evidence finds that the root cause of homelessness is, ultimately, a lack of sufficient housing.

1 minute read

July 19, 2023, 9:00 AM PDT

By Diana Ionescu @aworkoffiction


Tent covered with tarp with bike and other objects on sidewalk in Skid Row, downtown Los Angeles

Skid Row in downtown Los Angeles, home to a large unhoused population and Single Room Occupancy hotel. | Stefan / Adobe Stock

Despite a commonly repeated assumption that unhoused people flock to warm West Coast cities and exacerbate the housing and homelessness crisis there, research from UC San Francisco contradicts these claims, reports Jerusalem Demsas in The Atlantic.

The survey, “the largest representative survey of homeless people in more than 25 years,” found that only 10 percent of respondents became homeless outside of California, and many of them had prior ties to the state that prompted them to return.

Demsas points out that the theory doesn’t stand up to scrutiny: “Moving is expensive. People who lose their housing rarely have the means to transport themselves, their families, their pets, and their belongings across the country.”

The most frequently reported reason for loss of housing was reduction of income due to unemployment or a decrease in work hours. Economic reasons were followed by two social ones: conflict among residents, and concerns about imposing on roommates or family members. These social reasons would, in a more affordable environment, lead simply to a change of address, not homelessness.

Ultimately, Demsas points out, regardless of the services available to unhoused people, “the crisis of homelessness is a crisis of homes.” California and other states with expensive housing have to build their way out of the crisis.

Tuesday, July 18, 2023 in The Atlantic

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

Get top-rated, practical training

Aerial view of single-family homes with swimming pools in San Diego, California.

San Diego to Rescind Multi-Unit ADU Rule

The city wants to close a loophole that allowed developers to build apartment buildings on single-family lots as ADUs.

March 9, 2025 - Axios

Canadian flag in foreground with blurred Canadian Parliament building in background in Ottawa, Ontario, Canada.

Has President Trump Met His Match?

Doug Ford, the no-nonsense premier of Canada's most populous province, Ontario, is taking on Trump where it hurts — making American energy more expensive.

March 11, 2025 - Toronto Star

Close-up of green ULEZ sign in London, UK.

Study: London ULEZ Rapidly Cleaning up Air Pollution

Expanding the city’s ultra low-emission zone has resulted in dramatic drops in particle emissions in inner and outer London.

March 10, 2025 - Smart Cities World

Tents set up by unhoused people under freeway overpass in San Jose, California with American flag above them.

San Jose Mayor Takes Dual Approach to Unsheltered Homeless Population

In a commentary published in The Mercury News, Mayor Matt Mahan describes a shelter and law enforcement approach to ending targeted homeless encampments within Northern California's largest city.

March 14 - The Mercury News

Blue Atlanta streetcar on street in downtown Atlanta, Georgia.

Atlanta Changes Beltline Rail Plan

City officials say they are committed to building rail connections, but are nixing a prior plan to extend the streetcar network.

March 14 - Saporta Report

New York City city hall building.

Are Black Mayors Being Pushed Out of Office?

The mayors of New York, St. Louis, and Pittsburgh all stand to lose their seats in the coming weeks. They also all happen to be Black.

March 14 - Governing

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.