Shizuoka at-large district
The is a constituency that represents Shizuoka Prefecture in the House of Councillors in the Diet of Japan. It has four Councillors in the 242-member house. Outline. The constituency represents the entire population of Shizuoka Prefecture. Since its inception in 1947, the district has elected four Councillors to six-year terms, two at alternating elections held every three years. The district has 3,052,579 registered voters as of September 2015. The Councillors currently representing Shizuoka are: Election results.