The spring training stadiums in Arizona are as follows: Camelback Ranch (Glendale), Sloan Park (Mesa), Goodyear Ballpark (Goodyear), Maryvale Park (Phoenix), Hohokam Stadium (Mesa), Peoria Complex (Peoria), Salt River Fields (Scottsdale), Scottsdale Stadium (Scottsdale), Surprise Stadium (Surprise) and Tempe Diablo Stadium (Tempe). Some teams share spring training ballparks.
As of 2015, there are fifteen MLB teams that play Cactus League spring training baseball in Arizona, but only ten different stadiums. This is because there are five instances where a ballpark is shared between two teams-- Camelback Ranch (White Sox and Dodgers), Goodyear Ballpark (Reds and Indians), Peoria Complex (Padres and Mariners), Salt River Fields (Diamondbacks and Rockies) and Surprise Stadium (Royals and Rangers). The only teams stadiums that are solely owned are Sloan Park (Cubs), Maryvale Park (Brewers), Hohokam Stadium (Athletics), Scottsdale Stadium (Giants, and Tempe Diabo Stadium (Angels).
All of the Arizona spring training stadiums have relatively low spectator capacities. Ranging from the lowest, Maryvale Park seats just 7,000, while the largest, Sloan Park seats 15,000. Sloan Park, built in 2014, is also the newest Arizona spring training stadium. The oldest is Hohokam Stadium, built in 1964. Including the Grapefruit League stadiums in Florida, Hohokam Stadium is the oldest spring training stadium in use today.