Maricopa County is located in the central part of Arizona and is the most populous county in the state. It covers an area of about 9,224 square miles and includes major cities such as Phoenix, which is also the state capital. The county is known for its diverse landscapes, ranging from desert areas to mountainous regions. Established in 1871, Maricopa County plays a significant role in the economy of Arizona, with industries such as healthcare, technology, and tourism. The county is home to several parks and recreational areas, making it a popular destination for outdoor activities and events throughout the year.