Nisshin is located on the flatlands of central Aichi Prefecture, and is bordered by the metropolis of Nagoya to the west.

[3] Per Japanese census data,[4] the population of Nisshin has grown rapidly over the past 50 years.

The village was named after the Imperial Japanese Navy cruiser Nisshin, which became famous during the Russo-Japanese War.

Nisshin has a mayor-council form of government with a directly elected mayor and a unicameral city legislature of 20 members.

In terms of national politics, the city is part of Aichi District 7 of the lower house of the Diet of Japan.