Shortest to tallest please! Edit: Only for base evolutions

Froakie: 1ft. Fennekin: 1ft. 4in. Chespin: 1ft. 4in. Turtwig: 1ft. 4in. Piplup:1ft. 4in. Torchic: 1ft. 4in. Mudkip: 1ft. 4in. Chimchar: 1ft. 8in. Treecko: 1ft. 8in. Oshawott: 1ft. 8in. Tepig: 1ft. 8in. Cyndaquil: 1ft. 8in. Squirtle: 1ft. 8in. Snivy: 2ft. Charmander: 2ft. Totodile: 2ft. Bulbasaur: 2ft. 4in. Chikorita: 2ft. 11in. Source: http://bulbapedia.bulbagarden.net/wiki/List_of_Pokémon_by_National_Pokédex_number

From Shortest to Tallest: Froakie-1ft Torchic-1ft 4in Mudkip-1ft 4in Turtwig- 1ft 4in Piplup- 1ft 4in Chespin- 1ft 4in Fennekin- 1ft 4in Squirtle- 1ft 8in Cyndaquil- 1ft 8in Treecko- 1ft 8in Chimchar- 1ft 8in Tepig- 1ft 8in Oshawott- 1ft 8in Totodile-2ft Charmander- 2ft Bulbasuar-2ft 4in Chikortia- 2ft 11in

Source: http://pokemondb.net/pokedex/stats/height-weight

Froakie 1' Torchic 1' 4" Mudkip 1' 4" Piplup 1' 4" Turtwig 1' 4" Fennekin 1' 4" Chespin 1' 4" Squirtle 1' 8" Cyndaquil 1' 8" Treecko 1' 8" Chimchar 1' 8" Tepig 1' 8" Oshawott 1' 8" Charmander 2' Totodile 2' Snivy 2' Bulbasaur 2' 4" Chikorita 2' 11"

There. I'm pretty sure I got it right.

Hope I helped