[2] Per Japanese census data,[3] the population of Ichinomiya has increased steadily over the past 70 years.

In case of Owari Province, this was Masumida Shrine, which dates to the Nara period and was located close to the provincial capital in what is now the city of Inazawa.

Ichinomiya has a mayor-council form of government with a directly elected mayor and a unicameral city legislature of 38 members.

Traditionally noted for textiles, Ichinomiya is now a regional commercial center with a mixed economy of manufacturing and agriculture.

The Eisaku Noro Company, which produces colorful handcrafting and machine yarns for clothing, is also based here.