 Plans to merge with neighboring Chiyoda in 2004 and with Ōta in 2008 were rejected by the local town assembly.Ōizumi has an industrial base, with manufacturing facilities including plants from Ajinomoto, Sanyo, Toppan, Maruha Nichiro and Fuji Heavy Industries (which was previously the plant of the Nakajima Aircraft Company), located in the town.International schools