Region 4: Arkansas, Louisiana, Mississippi, Oklahoma, and Texas (excluding the portion of the North Texas Association that is west of I-35) [for regional purposes, the Dallas/Fort Worth metro area is considered east of I-35].
Region 10: Alaska, parts of California (Northern and Central California Associations), Idaho, Nevada (minus Clark County/Las Vegas), Montana, Oregon, Utah, and Washington.
Region 11: Arizona, New Mexico, and a portion of the state of Texas (the portion of the North Texas Association that is west of I-35) [for regional purposes, the Dallas/Fort Worth metro area is considered east of I-35].
Region 12: The portion of California that is in the Southern Pacific Association, Hawaii, and the portion of Nevada that is within Clark County (Las Vegas area).
Zone A: Regions 1 and 2
Zone B: Regions 3 and 4
Zone C: Regions 5 and 6
Zone D: Regions 7 and 8
Zone E: Regions 9 and 10
Zone F: Regions 11 and 12
East: Zones A and B
Central: Zones C and D
West: Zones E and F
*These maps reflect the 2026 season alignments. Regions, Zones and East, West and Central are subject to realignment for the 2027 season.