Battle Pets by Zone

Pet Battle: [1-2] Dun Morogh; [1-2] Durotar; [3-4] Northern Barrens; [7-9] Northern Stranglethorn; [9-10] Southern Barrens; [16-17] Blasted Lands; [17-18] Hellfire Peninsula; [18-19] Nagrand (Outland); [25] Spires of Arak; [25] Nagrand (Draenor)

Pet Battle: [1-2] Dun Morogh; [17-18] Winterspring

Pet Battle: [1-2] Dun Morogh

Pet Battle: [1-2] Dun Morogh

Pet Battle: [1-2] Undercity; [1-2] Tirisfal Glades; [1-2] Dun Morogh; [3-6] Ghostlands; [4-6] Ashenvale; [6-7] Hillsbrad Foothills; [11-12] The Hinterlands; [20-22] Howling Fjord; [25] Tanaan Jungle

Pet Battle: [1] Stormwind City; [1-2] Azuremyst Isle; [1-2] Tirisfal Glades; [1-2] Dun Morogh; [1-2] Teldrassil; [1-2] Mulgore; [1-2] Eversong Woods; [1-2] Elwynn Forest; [1-3] Silvermoon City; [3-4] Westfall; [3-6] Azshara; [3-6] Silverpine Forest; [3-6] Darkshore; [4-6] Ashenvale; [4-6] Redridge Mountains; [5-7] Duskwood; [5-7] Stonetalon Mountains; [6-7] Hillsbrad Foothills; [6-7] Wetlands; [10-11] Western Plaguelands; [11-12] Feralas; [15-16] Moonglade; [18-19] Nagrand (Outland); [18-20] Blade's Edge Mountains; [20-22] Howling Fjord; [22-23] Crystalsong Forest; [22-24] Mount Hyjal; [25] Highmountain; [25] Nagrand (Draenor)

Pet Battle: [1] Stormwind City; [1-2] Azuremyst Isle; [1-2] Dun Morogh; [1-2] Tirisfal Glades; [1-2] The Lost Isles; [3-6] Azshara; [3-6] Ghostlands; [3-6] Darkshore; [3-6] Silverpine Forest; [3-6] Bloodmyst Isle; [3-6] Loch Modan; [4-6] Ashenvale; [5-7] Stonetalon Mountains; [6-7] Hillsbrad Foothills; [7-8] Arathi Highlands; [7-9] Desolace; [9-10] The Cape of Stranglethorn; [11-12] The Hinterlands; [14-15] Swamp of Sorrows; [18-19] Shattrath City; [18-19] Nagrand (Outland); [18-19] Terokkar Forest; [20-22] Howling Fjord; [22-23] Crystalsong Forest; [23-25] Frostfire Ridge; [25] Nagrand (Draenor); [25] Timeless Isle; [25] Highmountain; [25] Spires of Arak

Pet Battle: [1-2] Undercity; [1-2] Tirisfal Glades; [1-2] Dun Morogh; [3-6] Azshara; [3-6] Loch Modan; [4-6] Ashenvale; [4-6] Redridge Mountains; [5-7] Stonetalon Mountains; [5-7] Duskwood; [7-9] Northern Stranglethorn; [7-9] Desolace; [9-10] The Cape of Stranglethorn; [13-14] Thousand Needles; [20-22] Howling Fjord

Pet Battle: [1-2] Dun Morogh; [3-6] Loch Modan

Pet Battle: [1] Orgrimmar; [1] Gilneas; [1-2] Elwynn Forest; [1-2] Dun Morogh; [1-2] Tirisfal Glades; [1-2] Teldrassil; [1-2] Gilneas City; [3-6] Ghostlands; [3-6] Azshara; [5-7] Stonetalon Mountains; [6-7] Hillsbrad Foothills; [11-12] The Hinterlands; [12-13] Dustwallow Marsh; [12-13] Eastern Plaguelands; [14-15] Swamp of Sorrows; [16-17] Blasted Lands; [17-18] Winterspring; [20-22] Howling Fjord; [22-23] Zul'Drak; [22-23] The Storm Peaks; [23-25] Shadowmoon Valley (Draenor)

Pet Battle: [1-2] Dun Morogh; [3-6] Darkshore; [7-9] Northern Stranglethorn; [9-10] The Cape of Stranglethorn; [14-15] Swamp of Sorrows; [22-23] Dragonblight; [25] Spires of Arak

Pet Battle: [1] Gilneas; [1] Orgrimmar; [1-2] Durotar; [1-2] Eversong Woods; [1-2] Dun Morogh; [1-2] Teldrassil; [3-6] Silverpine Forest; [3-6] Ghostlands; [4-6] Ashenvale; [6-7] Hillsbrad Foothills; [6-7] Wetlands; [12-13] Dustwallow Marsh; [14-15] Felwood; [14-15] Swamp of Sorrows; [18-19] Nagrand (Outland); [20-22] Howling Fjord; [23-24] Twilight Highlands; [25] Nagrand (Draenor)