Predictions That Phoenix and Tucson Will Merge Revisited

Before the recession, bumper Arizona home sales led to predictions that the state's two largest cities might merge by 2040. The downturn stalled those forecasts, but now they're being revisited.

1 minute read

May 6, 2019, 1:00 PM PDT

By Philip Rojc @PhilipRojc


Arizona Sprawl

Tim Roberts Photography / Shutterstock

"New census data shows Maricopa County grew faster than any other county in the nation for the second year in a row," Catherine Reagor writes. "Population projections for metro Phoenix could mean it will join with Tucson somewhere in Pinal County in about two decades, if the numbers are right and the Valley's growth engine doesn't stall again."

Pre-recession, rampant housing speculation led to inflated home sales numbers, convincing some urban researchers that the Phoenix metropolitan area might join with that of Tucson to become a "super-sized" megaregion.

But despite the fact that previous estimates were overly high, "the state's population growth numbers aren't as dependent on housing, and tallies during the crash have been revised." 

"Arizona's population, now at almost 7.2 million, is expected to grow 1.6 percent in 2018 and 1.5 percent 2019, adding a bit more than 100,000 residents both years," Reagor writes. "Most of Arizona's residents live in metro Phoenix and Tucson."

Sunday, April 21, 2019 in Arizona Republic

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

Close-up of "Apartment for rent" sign in red text on black background in front of blurred building

Trump Administration Could Effectively End Housing Voucher Program

Federal officials are eyeing major cuts to the Section 8 program that helps millions of low-income households pay rent.

April 21, 2025 - Housing Wire

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.

April 30, 2025 - Diana Ionescu

Ken Jennings stands in front of Snohomish County Community Transit bus.

Ken Jennings Launches Transit Web Series

The Jeopardy champ wants you to ride public transit.

April 20, 2025 - Streetsblog USA

Close-up of white panel at top of school bus with "100% electric" black text.

Driving Equity and Clean Air: California Invests in Greener School Transportation

California has awarded $500 million to fund 1,000 zero-emission school buses and chargers for educational agencies as part of its effort to reduce pollution, improve student health, and accelerate the transition to clean transportation.

April 30 - California Air Resources Board

Aerial view of Freeway Park cap park over I-5 interstate freeway in Seattle, Washington at night.

Congress Moves to End Reconnecting Communities and Related Grants

The House Transportation and Infrastructure Committee moved to rescind funding for the Neighborhood Equity and Access program, which funds highway removals, freeway caps, transit projects, pedestrian infrastructure, and more.

April 30 - Streetsblog USA

"No Thru Traffic - Open Streets Restaurants" sign in New York City during Covid-19 pandemic.

From Throughway to Public Space: Taking Back the American Street

How the Covid-19 pandemic taught us new ways to reclaim city streets from cars.

April 30 - Next City