Located in central Gunma, Yoshioka sits between the southeastern slopes of Mount Haruna and the Tone River region.

Gunma Prefecture Yoshioka has a Humid continental climate (Köppen Cfa) characterized by warm summers and cold winters with heavy snowfall.

[2] Per Japanese census data,[3] the population of Yoshioka has increased steadily over the past 60 years.

Yoshioka has a mayor-council form of government with a directly elected mayor and a unicameral town council of 14 members.

In terms of national politics, the town is part of Gunma 5th district of the lower house of the Diet of Japan.