Here is the complete Pokemon X and Y Kalos Pokedex Guide by Wil and Jenesuis.
Central
- Aquacorde Town - Chespin / Fennekin / Froakie (Gift)
- Route 2 - Bunnelby, Fletchling, Pidgey, Scatterbug, Caterpie (Y), Weedle (X), Zigzagoon
- Santalune Forest - Caterpie, Weedle, Metapod (Y), Kakuna (X), Pansear, Pansage, Panpour, Pikachu, Fletchling, Scatterbug
- Route 3 - Pikachu, Bidoof, Dunsparce, Azurill, Marill (Surf), Burmy, Masquerain (Surf), Magikarp (Old Rod), Gyarados (Super Rod), Corphish (Good Rod), Crawdaunt (Super Rod), Goldeen (Good Rod), Seaking (Super Rod), Pidgey, Bunnelby, Fletchling
- Route 22 - Riolu, Litleo, Psyduck, Farfetch'd, Dunsparce, Azurill, Azumarill, Bidoof, Bibarel, Bunnelby, Diggersby, Litleo, Magikarp (Old Rod), Goldeen (Good Rod), Carvanha (Good Rod), Seaking (Super Rod), Gyarados (Super Rod), Sharpedo (Super Rod)
- Route 4 - Flabébé, Budew, Skitty, Ralts, Ledyba, Combee
- Lumiose City - Bulbasaur / Charmander / Squirtle (Gift)
- Route 5 - Pancham, Skiddo, Furfrou, Doduo, Plusle, Minun, Gulpin, Scraggy, Abra, Bunnelby
- Route 6 - Oddish, Sentret, Nincada, Espurr, Kecleon, Honedge, Audino, Venipede
- Route 7 - Smeargle, Croagunk, Ducklett, Spritzee (Y), Swirlix (X), Volbeat, Illumise, Hoppip, Roselia, Flabébé, Psyduck, Snorlax (Unique)
Coastal
- Connecting Cave - Meditite, Zubat, Whismur, Axew
- Route 8 - Drifloon, Mienfoo, Zangoose, Seviper, Spoink, Absol, Inkay, Lunatone, Solrock, Bagon, Wingull, Taillow, Dwebble (Rock Smash), Binacle (Rock Smash), Tentacool (Surf), Wailmer (Surf), Luvdisc (Old Rod), Skrelp (Y) (Good Rod), Clauncher (X) (Good Rod), Staryu (X) (Good Rod), Shellder (Y) (Good Rod), Qwilfish (Super Rod), Starmie (X) (Super Rod), Cloyster (Y), Clawitzer (X) (Super Rod), Dragalge (Y) (Super Rod)
- Ambrette Town - Dwebble (Rock Smash), Binacle (Rock Smash), Tentacool (Surf), Wailmer (Surf), Luvdisc (Old Rod), Horsea (Good Rod), Skrelp (Y) (Good Rod), Clauncher (X) (Good Rod), Seadra (Super Rod), Relicanth (Super Rod), Clawitzer (X) (Super Rod), Dragalge (Y) (Super Rod), Aerodactyl (Old Amber), Tyrunt (Jaw Fossil) / Amaura (Sail Fossil)
- Route 9 - Sandile, Helioptile, Hippopotas
- Glittering Cave - Rhyhorn, Onix, Woobat, Machop, Cubone, Kangaskhan, Mawile, Ferroseed, Lunatone, Solrock, Dwebble (Rock Smash)
- Cyllage City - Dwebble (Rock Smash), Binacle (Rock Smash), Tentacool (Surf), Wailmer (Surf), Luvdisc (Old Rod), Horsea (Good Rod), Skrelp (Y) (Good Rod), Clauncher (X) (Good Rod), Seadra (Super Rod), Relicanth (Super Rod), Clawitzer (X) (Super Rod), Dragalge (Y) (Super Rod)
- Route 10 - Snubbull, Electrike (Y), Houndour (X), Eevee, Emolga, Yanma, Hawlucha, Sigilyph, Golett, Nosepass
- Geosenge Town - Xerneas (X), Yveltal (Y)
- Route 11 - Makuhita, Hariyama, Throh (Y), Sawk (X), Starly, Staravia, Stunky, Nidorino, Nidorina, Dedenne, Chingling
- Reflection Cave - Mime Jr., Solosis, Wobbuffet, Roggenrola, Sableye, Carbink, Mr. Mime, Chingling, Woobat, Ferroseed
- Shalour City - Tentacool (Surf), Mantyke (Surf), Luvdisc (Old Rod), Remoraid (Good Rod), Chinchou (Good Rod), Alomomola (Super Rod), Octillery (Super Rod), Lanturn (Super Rod), Lucario (gift)
- Route 12 - Corsola, Tauros, Miltank, Mareep, Pinsir (X), Heracross (Y), Pachirisu, Slowpoke, Exeggcute, Chatot, Clamperl, Remoraid, Lapras (gift), Dwebble (Rock Smash), Binacle (Rock Smash), Wingull, Tentacool (Surf), Lapras (Surf), Mantyke (Surf), Luvdisc (Old Rod), Remoraid (Good Rod), Clamperl (Good Rod), Corsola (Super Rod), Octillery (Super Rod), Huntail (X) (Super Rod), Gorebyss (Y) (Super Rod)
- Azure Bay - Chinchou, Alomomola, Slowpoke, Exeggcute, Chatot, Inkay, Dwebble (Rock Smash), Binacle (Rock Smash), Wingull, Tentacool (Surf), Lapras (Surf), Mantyke (Surf), Luvdisc (Old Rod), Chinchou (Good Rod), Remoraid (Good Rod), Alomomola (Super Rod), Octillery (Super Rod), Lanturn (Super Rod)
- Sea Spirit's Den - Moltres (if you picked Froakie), Zapdos (if you picked Fennekin), Articuno (if you picked Chespin); (roaming after Elite Four, encounter 8-12 times and they will stop here)
- Route 13 - Diglett, Trapinch, Gible, Graveler (Rock Smash), Slugma (Rock Smash)
- Route 14 - Skorupi, Quagsire, GOOMY, Karrablast, Shelmet, Bellsprout, Weepinbell, Carnivine, Haunter, Poliwag (Old Rod), Poliwhirl (Good Rod), Ekans, Stunfisk, Barboach (Good Rod), Whiscash (Super Rod)
- Laverre City - Poliwag (Old Rod), Poliwhirl (Good Rod), Basculin (Good Rod)
- Route 15 - Skorupi, Liepard (Y), Mightyena (X), Watchog, Pawniard, Klefki, Murkrow, Foongus, Lombre (Surf), Floatzel (Surf), Poliwag (Old Rod), Poliwhirl (Good Rod), Basculin (Good Rod)
- Route 16 - Phantump, Pumpkaboo, Weepinbell, Floatzel, Skorupi, Murkrow, Foongus, Klefki, Lombre (Surf), Floatzel (Surf), Poliwag (Old Rod), Poliwhirl (Good Rod), Basculin (Good Rod)
- Lost Hotel - Litwick, Rotom, Magnemite, Magneton, Voltorb, Electrode, Trubbish, Pawniard, Klefki, Garbodor
- Frost Cavern - Gastly, Piloswine, Bergmite, Cubchoo, Beartic, Smoochum, Jynx, Vanillite, Haunter, Cryogonal, Floatzel (Surf), Poliwag (Old Rod), Poliwhirl (Good Rod), Basculin (Good Rod)
- Route 17 - Snover, Abomasnow, Deliberd, Sneasel
- Route 18 - Gurdurr, Torkoal, Sandslash, Lairon (X), Pupitar (Y), Heatmor, Durant, Fearow, Skarmory (?), Graveler, Shuckle (Rock Smash), Geodude
- Terminus Cave - Aron (X), Larvitar (Y), Lairon (X), Pupitar (Y), Sandslash, Ariados, Noibat, Graveler, Shuckle (Rock Smash), Geodude, Durant, Zygarde
- Couriway Town - Lombre (Surf), Floatzel (Surf), Poliwag (Old Rod), Poliwhirl (Good Rod), Basculin (Good Rod)
- Route 19 - Gligar, Haunter, Quagsire, Drapion, Carnivine, Karrablast, Shelmet, Sliggoo, Arbok, Weepinbell, Skorupi, Stunfisk, Poliwag (Old Rod), Poliwhirl (Good Rod), Barboach (Good Rod), Whiscash (Super Rod), Politoed (Super Rod)
- Route 20 - Noctowl, Jigglypuff, Zoroark, Gothorita, Sudowoodo, Amoonguss, Ditto (?), Trevenant, Gourgeist (?)
- Pokemon Village - Jigglypuff, Ditto, Zoroark, Gothorita, Amoonguss, Hoothoot, Banette, Garbodor, Poliwag, Noctowl, Foongus, Lombre (Surf), Poliwhirl (Surf?), Basculin (Old Rod), Mewtwo (Unique)
- Route 21 - Spinda, Ursaring, Scyther, Swablu, Altaria, Floatzel, Lombre (Surf), Poliwag (Old Rod), Poliwhirl (Good Rod), Dratini (Good Rod), Basculin (Good Rod), Dragonair (Super Rod)
- Victory Road - Teddiursa, Lickitung, Druddigon, Zweilous, Hydreigon, Graveler, Haunter, Druddigon, Fearow, Skarmory, Ariados, Shuckle (Rock Smash), Gurdurr, Geodude, Floatzel, Lombre (Surf), Poliwag (Old Rod), Poliwhirl (Good Rod), Basculin (Old Rod), Poliwrath (Super Rod)
- Torchic [Mystery Gift Event - Oct 11 2013 - Jan 18 2014]