Welcome to Ajo, Arizona, founded in 1854 and home to approximately 3,523 residents. This charming town, known for its historic architecture and vibrant arts scene, was once a bustling copper mining community. Notable figures like architect John Gaw Meem and painter Louise Nevelson have left their mark on Ajo. With its sister city of Sonoyta, Mexico, Ajo offers a unique blend of cultures and a warm, welcoming atmosphere for visitors to explore.