Phoenix City, located in the state of Arizona, belongs to the greater Phoenix-Mesa-Glendale metropolitan area. The city is situated along the Salt River Valley, which is a significant geographic feature that has shaped its development. Phoenix City is part of the Maricopa County, one of the most populous counties in the United States. The streets within Phoenix City are part of a well-structured grid system, which is typical of many American cities. This grid system is designed to facilitate easy navigation and efficient transportation.

The street system in Phoenix is organized into a series of north-south and east-west streets. The primary north-south streets are numbered, starting from the central business district (CBD) and extending outward. For example, Central Avenue, which runs through the heart of the city, is one of the main thoroughfares. The east-west streets are named alphabetically, starting with the letter "A" near the CBD and continuing outward. This naming convention helps residents and visitors alike to navigate the city with relative ease.

The grid system in Phoenix was established in the late 19th century when the city was still in its early stages of development. The city's founders, including the famous developer and financier, William Goodyear, were instrumental in designing the city's layout. The grid system was chosen for its practicality and scalability, allowing for easy expansion as the city grew.

Data from the United States Census Bureau indicates that Phoenix has a population of over 1.6 million residents, making it the fifth-largest city in the United States. The city's street system is designed to accommodate this population, with a vast network of roads and highways that connect the city to surrounding areas. The grid system also plays a crucial role in the city's economic development, as it provides a framework for businesses and residential areas to thrive.

In conclusion, Phoenix City belongs to the Salt River Valley, which is part of the larger Phoenix-Mesa-Glendale metropolitan area. The city's streets are organized in a grid system, which was established in the late 19th century and has been instrumental in the city's growth and development. This system allows for efficient navigation and transportation, which are essential for a city of Phoenix's size and importance.