The La Paz County Comprehensive Plan is the first overall plan for development countywide. Due to the passage of new state requirements and a desire to plan for the future, the La Paz County Board of Supervisors contracted with Partners for Strategic Action, Inc. to develop the county’s first comprehensive plan. The consulting team was directed to solicit broad community participation, study the county planning area, and develop a plan that would be an easy-to-understand policy document that will guide La Paz County’s development in the future.

Arizona is one of the nation’s most urban states, and now it includes one of 20 “megapolitan” areas in the U.S. People have predicted for 50 years that Phoenix and Tucson would grow together into a giant desert conglomerate. That possibility has been seen as exciting, intriguing, and distressing. While a solid city along Interstate 10 is unlikely given the diverse land ownership in central and southern Arizona, the two metro economies are already merging.

Megapolitan: Arizona’s Sun Corridor, one of the first reports on a single megapolitan area, recognizes a more sophisticated technique for analyzing urban growth—that shared economic and quality of life interests are more important than physically growing together.

Scholars at Virginia Tech defined the megapolitans based on economic and growth patterns.
The Sun Corridor, which cuts across six counties from the border with Mexico to the center of Yavapai County, is the home of eight out of 10 Arizonans. In the next several decades, two out of three Americans will live in a megapolitan accounting for 60% of the population on only 10% of U.S. land.

Megapolitan offers a bold new picture of Arizona’s geography and its future opportunities and “megaton” challenges. This report presents a scenario for 2035 based on current trends. It analyzes the Sun Corridor and provides insights into the region’s global potential, water, governance, sustainability, and “trillion dollar questions.” It discusses the “tragedy of the sunshine” and asks the indispensable question: In 2035, do you want to live in the Sun Corridor?

“What about the water?” was one of the questions Morrison Institute for Public Policy asked in its 2008 study, "Megapolitan: Arizona’s Sun Corridor". That report looked at the potential growth of the Sun Corridor as Tucson and Phoenix merge into one continuous area for economic and demographic purposes.

With its brief review of the water situation in urban Arizona, "Megapolitan" left a number of questions unanswered. This report will consider questions like these in more detail in order to examine the Sun Corridor’s water future. This topic has received less sophisticated public discussion than might be expected in a desert state. Arizona’s professional water managers feel they are relatively well prepared for the future and would like to be left alone to do their job. Elected officials and economic-development professionals have sometimes avoided discussing water for fear of reinforcing a negative view of Arizona. This report seeks to contribute to this understanding, and to a more open and informed conversation about the relationship of water and future growth.