Yamagata at-large district

The Yamagata at-large district is a constituency that represents Yamagata Prefecture in the House of Councillors in the Diet of Japan. Councillors are elected to the house by single non-transferable vote for six-year terms. Since the establishment of the current House of Councillors electoral system in 1947, the district has elected two Councillors, one each at elections held every three years. It has 898,671 registered voters as of September 2022.

Election results

Elections in the 2020s

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! colspan="3" style="text-align:left;" |Party total seats
! style="text-align:center;" | Won
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! style="text-align:center;" | Change