Ylistaro is a former municipality of Finland. It was consolidated, together with Nurmo to Seinäjoki in 1 January 2009.
It is located in the province of Western Finland and is part of the Southern Ostrobothnia region. The municipality had a population of 5,582 (2003) and covered an area of 484.08 km² of which 2.73 km² is water. The population density was 11.6 inhabitants per km².
The municipality was unilingually Finnish.
In May 2007 it was agreed that Ylistaro would merge with the city of Seinäjoki and the neighbouring municipality of Nurmo; so from 2009 Ylistaro ended its independent existence.
Media related to Ylistaro at Wikimedia Commons
Coordinates: 62°56′25″N 22°31′00″E / 62.94028°N 22.51667°E