The nation's growth slowed from 2010 and 2020, according to 2020 Census data, and demographers are still trying to figure out what population trends mean for the future of country's major metropolitan areas.

William H. Frey provides insights into the growth, diversity, segregation, and aging trends in the nation’s largest metropolitan areas, as reported by the 2020 Census.
As noted by Frey, the nation’s largest metropolitan areas—with 1 million residents and more—are home to six in ten Americans, and that total is only increasing as major metro areas grew faster than smaller metro areas from 2010 to 2020.
“Moreover, the increased racial and ethnic diversity that characterized the nation is especially concentrated in major metro areas and, in particular, among their youth populations,” writes Frey.
A few other key findings from the article (which synthesizes information presented in a longer report published by Brookings Mountain West), with more detail provided in the source article below:
- Major metro areas grew more slowly since 2010 than in several previous decades.
- The fastest growing metro areas are in the Sun Belt
- Cities grew faster and suburbs slower when compared to the previous decade of the 2000s.
- All major metro areas became more racially and ethnically diverse
- Neighborhood segregation varied by metro area
- The youth population declined and became more diverse
“This analysis of the 2020 census makes plain that the 2010-2020 period represents a transitional decade for the nation’s major metro areas,” according to Frey. That transition “does not lead to a straightforward forecast about [metro areas’] future prospects.”
FULL STORY: Growth, diversity, segregation, and aging in America’s largest metropolitan areas: A 2020 census portrait

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

Congressman Proposes Bill to Rename DC Metro “Trump Train”
The Make Autorail Great Again Act would withhold federal funding to the system until the Washington Metropolitan Area Transit Authority (WMATA), rebrands as the Washington Metropolitan Authority for Greater Access (WMAGA).

DARTSpace Platform Streamlines Dallas TOD Application Process
The Dallas transit agency hopes a shorter permitting timeline will boost transit-oriented development around rail stations.

Porches, Pets, and the People We Grow Old With
Neighborhood connections and animal companions matter to aging with dignity, and how we build can support them. Here’s a human-scale proposal for aging in place.

Single-Stair Design Contest Envisions Human-Scale Buildings
Single-stair building construction is having a resurgence in the United States, where, for the last several decades, zoning codes have required more than one staircase in multi-story housing developments.

Tesla Protests Release of Documents About Austin Robotaxi Launch
The company seeks to block the release of emails with city officials on the grounds they could contain confidential information and trade secrets.
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 Charlotte
Municipality of Princeton
Roanoke Valley-Alleghany Regional Commission
City of Camden Redevelopment Agency
City of Astoria
Transportation Research & Education Center (TREC) at Portland State University
US High Speed Rail Association
City of Camden Redevelopment Agency
Municipality of Princeton (NJ)