Each June, thousands of people gather for opera, organized annually by Ilmajoki Music Festival.

Successful athletes from Ilmajoki include Olympic javelin thrower Tero Pitkämäki and Finnish former wrestler Marko Yli-Hannuksela.

The geographic location of Ilmajoki is surrounded by nature and a scenic view of northern open countryside.

Ilmajoki's congregation was established under Isokyrö's civil parish, and extended to the areas of present-day Alavus, Jalasjärvi, Kauhajoki, Kurikka, Peräseinäjoki and Seinäjoki.

During the Cudgel War in the years 1596–1597, Jaakko Ilkka from Ilmajoki led the peasants as their leader but was executed by his opponents in January 1597.

Ilmajoki has repeatedly been rated as one of the top entrepreneurial municipalities, according to an annual survey conducted by South Ostrobothnia's Federation of Finnish Enterprise (Yrittäjät).

A privately owned airport that meets international standards is situated in Ilmajoki's village of Rengonkylä.