Casa Grande is a city in Pinal County, Arizona, located approximately halfway between Phoenix and Tucson. According to the 2020 census, the city had a population of 53,658, which was estimated to grow to 68,927 by 2024 and 70,156 by 2025, reflecting significant growth in the region.
The city's name means "big house" in Spanish and derives from the nearby Casa Grande Ruins National Monument, though the monument itself is actually located in the adjacent town of Coolidge. Among English speakers in the area, there is no consensus on how to pronounce the city's name.