Residents of big cities, known as the ‘melting pots’ of America, have fewer interactions with people outside their socioeconomic group than those in smaller communities, according to new research.

In a piece for Stanford News, Laura Castañón outlines the results of a study that sought to measure how much people of different socioeconomic classes interact with each other in cities of various sizes. “Using cellphone data, a collaboration of researchers led by Stanford University determined that most people in big cities have very few opportunities for even brief interactions with those outside their own socioeconomic status.” This stands in contrast to rural areas, where people are more likely to interact with others outside their demographic.
Professor Jure Leskovec explains the disparity, saying, “In New York, you can spend $10 on a dinner or $1,000 on a dinner, whereas if you live in a place with only one diner, everyone goes there, rich or poor. That seems to be the main mechanism for this phenomenon.”
The study’s authors say this points to a need for policymakers and urban planners to promote interaction and diversity through conscious design choices. “Looking at large cities, the researchers found that those that placed frequently-visited hubs in between different neighborhoods – instead of in the center of each neighborhood – were less segregated.” The authors suggest that cities can use this data to understand where new quasi-public and public spaces could provide the most opportunities for social interaction and guide future development.
FULL STORY: Big cities foster socioeconomic segregation. Here’s how we can fix that

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.

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

Walmart Announces Nationwide EV Charging Network
The company plans to install electric car chargers at most of its stores by 2030.

New State Study Suggests Homelessness Far Undercounted in New Mexico
An analysis of hospital visit records provided a more accurate count than the annual point-in-time count used by most agencies.

Michigan Bills Would Stiffen Penalties for Deadly Crashes
Proposed state legislation would close a ‘legal gap’ that lets drivers who kill get away with few repercussions.

Report: Bus Ridership Back to 86 Percent of Pre-Covid Levels
Transit ridership around the country was up by 85 percent in all modes in 2024.
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.
City of Moorpark
City of Tustin
City of Camden Redevelopment Agency
City of Astoria
Transportation Research & Education Center (TREC) at Portland State University
Regional Transportation Commission of Southern Nevada
Toledo-Lucas County Plan Commissions