The economy of Casa Grande was historically based on rural, agricultural industries such as cotton and dairy farms. Over time, the city has become home to many Phoenix or Tucson urbanites who own homes in Casa Grande. Most residents either commute north to work in the Phoenix metropolitan area, or to the south, to work in Tucson. This trend has contributed to growth in the service industry of Casa Grande. Many new businesses such as restaurants, gas stations, and retail outlets are opening throughout the city in order to keep up with demand from the growing population.