Maricopa County, AZ is a diverse and vibrant county located in the central part of the state. With a population of over 4 million, it is the most populous county in Arizona and one of the fastest-growing in the United States. Maricopa County offers a warm climate, a range of entertainment options, a robust education system, and a diverse and friendly population. Let’s take a closer look at some of the key aspects of life in Maricopa County.