Pinal County is one of Arizona’s fastest-growing regions, known for its desert landscapes, historic towns, and proximity to major cities. Located in the south-central part of the state, it offers a mix of urban convenience and rural charm. This article explores Pinal County’s location from multiple perspectives, including geography, transportation, and notable landmarks.
Geographical Location of Pinal County
Pinal County covers 5,374 square miles in south-central Arizona, making it one of the state’s largest counties by area. Here’s a detailed breakdown of its position:
Coordinates and Borders
Pinal County sits between 32° 30′ N to 33° 20′ N latitude and 110° 30′ W to 112° 00′ W longitude. It borders:
Maricopa County (northwest)
Gila County (northeast)
Graham County (east)
Pima County (south)
Final County shares a small western border with Yuma County
Placement Within Arizona
The county lies midway between Phoenix and Tucson, about 60 miles from each city. This strategic location makes it a key corridor for transportation and commerce. For context, view its position on this detailed USA Map.
Transportation and Accessibility
Pinal County’s location makes it highly accessible through multiple transit options:
Major Highways
Interstate 10 (east-west corridor connecting Phoenix and Tucson)
State Route 79 (scenic north-south route)
State Route 287 (connects to Casa Grande and Eloy)
Air and Rail
Phoenix-Mesa Gateway Airport (serves the eastern part of the county)
Union Pacific Railroad lines run through the county
Notable Cities and Landmarks
Pinal County contains several significant communities and attractions:
Key Cities
Casa Grande (largest city and county seat)
Apache Junction (gateway to the Superstition Mountains)
Florence (historic town with preserved 19th-century buildings)
Natural and Cultural Landmarks
Picacho Peak State Park (iconic desert mountain)
Casa Grande Ruins National Monument (ancient Sonoran Desert people’s structures)
San Tan Mountain Regional Park (hiking and wildlife)
Economic and Demographic Significance
Pinal County’s location contributes to its growing importance:
Population Growth
The county’s population has doubled since 2000 due to its affordable housing and proximity to Phoenix/Tucson job markets.
Key Industries
Agriculture (cotton, cattle, and dairy dominate)
Logistics (strategic location along I-10)
Renewable energy (solar farms)
Comparison to Neighboring Counties
Unlike Maricopa County (urban) or Pima County (mountainous), Pinal County offers a blend of desert plains and agricultural valleys. For broader context, compare Arizona’s counties on this States reference map.
Conclusion
Pinal County occupies a strategic position in south-central Arizona, bridging the state’s two largest metro areas. Its accessible location, diverse landscapes, and economic opportunities make it a unique region within the Sonoran Desert. Whether you’re interested in history, outdoor recreation, or suburban growth, Pinal County’s geography plays a central role in its identity.
