 On April 1, 2001, Maebashi was designated a special city ("tokureishi") with increased local autonomy.On December 5, 2004 the town of Ōgo, and the villages of Kasukawa and Miyagi (all from Seta District) were merged into Maebashi.On May 5, 2009, the village of Fujimi (Seta District) was merged into Maebashi.