Fukuoka Prefecture Shingū has a humid subtropical climate (Köppen Cfa) characterized by warm summers and cool winters with light to no snowfall.

Shingū has experienced very rapid growth in population in the 2010s due to the construction of large housing developments.

After the Meiji restoration, the village of Shingū was established with the creation of the modern municipalities system on April 1, 1889.

Shingū has a mayor-council form of government with a directly elected mayor and a unicameral town council of 12 members.

In terms of national politics, the city is part of the Fukuoka 4th district of the lower house of the Diet of Japan.