What level does blitzle evolve in pokemon black and white?

In Pokemon Black and White, Blitzle (#522), an electric type Pokemon, evolves into Zebstrika (#523) at level 27. Blitzle and its evolved form Zebstrika, which resemble zebras, can be found around Route 3 and Route 7, respectively.

Sunday, February 05 2012
Source: http://bulbapedia.bulbagarden.net/wiki/Blitzle