{
  "schema_version": "jp-election-municipality-proportional-swing-graph.v1",
  "dataset_id": "jp-election-db.derived-shape.graph",
  "family": "graph",
  "dataset": "municipality-proportional-swing-2025-2026",
  "source_release_version": "2026-05-03-v050",
  "point_grain": "municipality",
  "selector": {
    "prefecture_code": "",
    "prefecture_name": "",
    "prefecture_name_en": "",
    "region_id": "kanto",
    "region_name": "関東地方",
    "region_name_en": "Kanto Region",
    "party_id": "TMI",
    "party_label": "みらい",
    "party_label_en": "Team Mirai",
    "scope": "region",
    "ranking_id": "",
    "ranking_label": "",
    "ranking_label_en": ""
  },
  "comparison": {
    "comparison_key": "20250720_hc_pr__20260208_hr_block",
    "baseline_election_set_key": "20250720_hc",
    "baseline_election_date": "2025-07-20",
    "baseline_vote_system": "pr",
    "target_election_set_key": "20260208_hr",
    "target_election_date": "2026-02-08",
    "target_vote_system": "block"
  },
  "metric": {
    "primary_metric_id": "votes_change_rate_pct",
    "primary_metric_label": "票数増減率",
    "secondary_metric_id": "votes_delta",
    "secondary_metric_label": "票数差"
  },
  "summary": {
    "point_grain": "municipality",
    "point_count": 360,
    "municipality_count": 360,
    "min_votes_change_rate_pct": -1.571186,
    "max_votes_change_rate_pct": 1100.0
  },
  "municipalities": [
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "103837",
      "municipality_name": "南牧村",
      "municipality_name_en": "Nammoku-mura",
      "baseline_votes": 3.0,
      "target_votes": 36.0,
      "votes_delta": 33.0,
      "votes_change_rate_pct": 1100.0,
      "baseline_vote_share_pct_muni": 0.337458,
      "target_vote_share_pct_muni": 4.072398,
      "vote_share_delta_pct_pt": 3.73494
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "103829",
      "municipality_name": "下仁田町",
      "municipality_name_en": "Shimonita-machi",
      "baseline_votes": 19.0,
      "target_votes": 175.0,
      "votes_delta": 156.0,
      "votes_change_rate_pct": 821.052632,
      "baseline_vote_share_pct_muni": 0.607611,
      "target_vote_share_pct_muni": 5.592841,
      "vote_share_delta_pct_pt": 4.98523
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "105236",
      "municipality_name": "千代田町",
      "municipality_name_en": "Chiyoda-machi",
      "baseline_votes": 32.0,
      "target_votes": 251.0,
      "votes_delta": 219.0,
      "votes_change_rate_pct": 684.375,
      "baseline_vote_share_pct_muni": 0.666806,
      "target_vote_share_pct_muni": 5.096447,
      "vote_share_delta_pct_pt": 4.429641
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "085421",
      "municipality_name": "五霞町",
      "municipality_name_en": "Goka-machi",
      "baseline_votes": 24.0,
      "target_votes": 183.0,
      "votes_delta": 159.0,
      "votes_change_rate_pct": 662.5,
      "baseline_vote_share_pct_muni": 0.665742,
      "target_vote_share_pct_muni": 4.990455,
      "vote_share_delta_pct_pt": 4.324713
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104213",
      "municipality_name": "中之条町",
      "municipality_name_en": "Nakanojo-machi",
      "baseline_votes": 58.0,
      "target_votes": 431.0,
      "votes_delta": 373.0,
      "votes_change_rate_pct": 643.103448,
      "baseline_vote_share_pct_muni": 0.730663,
      "target_vote_share_pct_muni": 5.311152,
      "vote_share_delta_pct_pt": 4.580489
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "103845",
      "municipality_name": "甘楽町",
      "municipality_name_en": "Kanra-machi",
      "baseline_votes": 47.0,
      "target_votes": 349.0,
      "votes_delta": 302.0,
      "votes_change_rate_pct": 642.553191,
      "baseline_vote_share_pct_muni": 0.783203,
      "target_vote_share_pct_muni": 5.64086,
      "vote_share_delta_pct_pt": 4.857657
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092150",
      "municipality_name": "那須烏山市",
      "municipality_name_en": "Nasukarasuyama-shi",
      "baseline_votes": 77.0,
      "target_votes": 552.0,
      "votes_delta": 475.0,
      "votes_change_rate_pct": 616.883117,
      "baseline_vote_share_pct_muni": 0.695322,
      "target_vote_share_pct_muni": 4.515707,
      "vote_share_delta_pct_pt": 3.820385
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "083100",
      "municipality_name": "城里町",
      "municipality_name_en": "Shirosato-machi",
      "baseline_votes": 59.0,
      "target_votes": 400.0,
      "votes_delta": 341.0,
      "votes_change_rate_pct": 577.966102,
      "baseline_vote_share_pct_muni": 0.710929,
      "target_vote_share_pct_muni": 4.886988,
      "vote_share_delta_pct_pt": 4.176059
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082120",
      "municipality_name": "常陸太田市",
      "municipality_name_en": "Hitachiota-shi",
      "baseline_votes": 170.0,
      "target_votes": 1118.0,
      "votes_delta": 948.0,
      "votes_change_rate_pct": 557.647059,
      "baseline_vote_share_pct_muni": 0.76656,
      "target_vote_share_pct_muni": 4.913206,
      "vote_share_delta_pct_pt": 4.146646
    },
    {
      "prefecture_code": "12",
      "prefecture_name": "千葉県",
      "prefecture_name_en": "Chiba",
      "jis_code": "124630",
      "municipality_name": "鋸南町",
      "municipality_name_en": "Kyonan-machi",
      "baseline_votes": 27.0,
      "target_votes": 173.0,
      "votes_delta": 146.0,
      "votes_change_rate_pct": 540.740741,
      "baseline_vote_share_pct_muni": 0.812763,
      "target_vote_share_pct_muni": 4.925968,
      "vote_share_delta_pct_pt": 4.113205
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "094110",
      "municipality_name": "那珂川町",
      "municipality_name_en": "Nakagawa-machi",
      "baseline_votes": 45.0,
      "target_votes": 288.0,
      "votes_delta": 243.0,
      "votes_change_rate_pct": 540.0,
      "baseline_vote_share_pct_muni": 0.681405,
      "target_vote_share_pct_muni": 3.861107,
      "vote_share_delta_pct_pt": 3.179702
    },
    {
      "prefecture_code": "12",
      "prefecture_name": "千葉県",
      "prefecture_name_en": "Chiba",
      "jis_code": "122343",
      "municipality_name": "南房総市",
      "municipality_name_en": "Minamiboso-shi",
      "baseline_votes": 149.0,
      "target_votes": 949.0,
      "votes_delta": 800.0,
      "votes_change_rate_pct": 536.912752,
      "baseline_vote_share_pct_muni": 0.959681,
      "target_vote_share_pct_muni": 5.872161,
      "vote_share_delta_pct_pt": 4.91248
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104299",
      "municipality_name": "東吾妻町",
      "municipality_name_en": "Higashiagatsuma-machi",
      "baseline_votes": 49.0,
      "target_votes": 309.0,
      "votes_delta": 260.0,
      "votes_change_rate_pct": 530.612245,
      "baseline_vote_share_pct_muni": 0.77214,
      "target_vote_share_pct_muni": 4.614695,
      "vote_share_delta_pct_pt": 3.842555
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "083640",
      "municipality_name": "大子町",
      "municipality_name_en": "Daigo-machi",
      "baseline_votes": 44.0,
      "target_votes": 274.0,
      "votes_delta": 230.0,
      "votes_change_rate_pct": 522.727273,
      "baseline_vote_share_pct_muni": 0.586667,
      "target_vote_share_pct_muni": 3.668496,
      "vote_share_delta_pct_pt": 3.081829
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104264",
      "municipality_name": "草津町",
      "municipality_name_en": "Kusatsu-machi",
      "baseline_votes": 19.0,
      "target_votes": 118.0,
      "votes_delta": 99.0,
      "votes_change_rate_pct": 521.052632,
      "baseline_vote_share_pct_muni": 0.68741,
      "target_vote_share_pct_muni": 4.495238,
      "vote_share_delta_pct_pt": 3.807828
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "093840",
      "municipality_name": "塩谷町",
      "municipality_name_en": "Shioya-machi",
      "baseline_votes": 31.0,
      "target_votes": 188.0,
      "votes_delta": 157.0,
      "votes_change_rate_pct": 506.451613,
      "baseline_vote_share_pct_muni": 0.711172,
      "target_vote_share_pct_muni": 4.188015,
      "vote_share_delta_pct_pt": 3.476843
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "105228",
      "municipality_name": "明和町",
      "municipality_name_en": "Meiwa-machi",
      "baseline_votes": 53.0,
      "target_votes": 319.0,
      "votes_delta": 266.0,
      "votes_change_rate_pct": 501.886792,
      "baseline_vote_share_pct_muni": 0.97337,
      "target_vote_share_pct_muni": 5.856435,
      "vote_share_delta_pct_pt": 4.883065
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "105210",
      "municipality_name": "板倉町",
      "municipality_name_en": "Itakura-machi",
      "baseline_votes": 65.0,
      "target_votes": 384.0,
      "votes_delta": 319.0,
      "votes_change_rate_pct": 490.769231,
      "baseline_vote_share_pct_muni": 0.996933,
      "target_vote_share_pct_muni": 5.875153,
      "vote_share_delta_pct_pt": 4.87822
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082252",
      "municipality_name": "常陸大宮市",
      "municipality_name_en": "Hitachiomiya-shi",
      "baseline_votes": 148.0,
      "target_votes": 871.0,
      "votes_delta": 723.0,
      "votes_change_rate_pct": 488.513514,
      "baseline_vote_share_pct_muni": 0.830994,
      "target_vote_share_pct_muni": 5.153541,
      "vote_share_delta_pct_pt": 4.322547
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104647",
      "municipality_name": "玉村町",
      "municipality_name_en": "Tamamura-machi",
      "baseline_votes": 180.0,
      "target_votes": 1058.0,
      "votes_delta": 878.0,
      "votes_change_rate_pct": 487.777778,
      "baseline_vote_share_pct_muni": 1.126408,
      "target_vote_share_pct_muni": 6.806485,
      "vote_share_delta_pct_pt": 5.680077
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "085219",
      "municipality_name": "八千代町",
      "municipality_name_en": "Yachiyo-machi",
      "baseline_votes": 69.0,
      "target_votes": 405.0,
      "votes_delta": 336.0,
      "votes_change_rate_pct": 486.956522,
      "baseline_vote_share_pct_muni": 0.795756,
      "target_vote_share_pct_muni": 4.454465,
      "vote_share_delta_pct_pt": 3.658709
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "093645",
      "municipality_name": "野木町",
      "municipality_name_en": "Nogi-machi",
      "baseline_votes": 131.0,
      "target_votes": 760.0,
      "votes_delta": 629.0,
      "votes_change_rate_pct": 480.152672,
      "baseline_vote_share_pct_muni": 1.128046,
      "target_vote_share_pct_muni": 6.716154,
      "vote_share_delta_pct_pt": 5.588108
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082260",
      "municipality_name": "那珂市",
      "municipality_name_en": "Naka-shi",
      "baseline_votes": 245.0,
      "target_votes": 1419.0,
      "votes_delta": 1174.0,
      "votes_change_rate_pct": 479.183673,
      "baseline_vote_share_pct_muni": 1.008106,
      "target_vote_share_pct_muni": 6.322684,
      "vote_share_delta_pct_pt": 5.314578
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "093432",
      "municipality_name": "茂木町",
      "municipality_name_en": "Motegi-machi",
      "baseline_votes": 41.0,
      "target_votes": 237.0,
      "votes_delta": 196.0,
      "votes_change_rate_pct": 478.04878,
      "baseline_vote_share_pct_muni": 0.691516,
      "target_vote_share_pct_muni": 3.983193,
      "vote_share_delta_pct_pt": 3.291677
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "084476",
      "municipality_name": "河内町",
      "municipality_name_en": "Kawachi-machi",
      "baseline_votes": 22.0,
      "target_votes": 127.0,
      "votes_delta": 105.0,
      "votes_change_rate_pct": 477.272727,
      "baseline_vote_share_pct_muni": 0.647821,
      "target_vote_share_pct_muni": 3.950233,
      "vote_share_delta_pct_pt": 3.302412
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082155",
      "municipality_name": "北茨城市",
      "municipality_name_en": "Kitaibaraki-shi",
      "baseline_votes": 143.0,
      "target_votes": 824.0,
      "votes_delta": 681.0,
      "votes_change_rate_pct": 476.223776,
      "baseline_vote_share_pct_muni": 0.794489,
      "target_vote_share_pct_muni": 4.61108,
      "vote_share_delta_pct_pt": 3.816591
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082147",
      "municipality_name": "高萩市",
      "municipality_name_en": "Takahagi-shi",
      "baseline_votes": 93.0,
      "target_votes": 527.0,
      "votes_delta": 434.0,
      "votes_change_rate_pct": 466.666667,
      "baseline_vote_share_pct_muni": 0.776683,
      "target_vote_share_pct_muni": 4.56712,
      "vote_share_delta_pct_pt": 3.790437
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104434",
      "municipality_name": "片品村",
      "municipality_name_en": "Katashina-mura",
      "baseline_votes": 16.0,
      "target_votes": 90.0,
      "votes_delta": 74.0,
      "votes_change_rate_pct": 462.5,
      "baseline_vote_share_pct_muni": 0.831169,
      "target_vote_share_pct_muni": 4.68506,
      "vote_share_delta_pct_pt": 3.853891
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102113",
      "municipality_name": "安中市",
      "municipality_name_en": "Annaka-shi",
      "baseline_votes": 269.0,
      "target_votes": 1494.0,
      "votes_delta": 1225.0,
      "votes_change_rate_pct": 455.390335,
      "baseline_vote_share_pct_muni": 1.051973,
      "target_vote_share_pct_muni": 5.92669,
      "vote_share_delta_pct_pt": 4.874717
    },
    {
      "prefecture_code": "12",
      "prefecture_name": "千葉県",
      "prefecture_name_en": "Chiba",
      "jis_code": "124036",
      "municipality_name": "九十九里町",
      "municipality_name_en": "Kujukuri-machi",
      "baseline_votes": 49.0,
      "target_votes": 271.0,
      "votes_delta": 222.0,
      "votes_change_rate_pct": 453.061224,
      "baseline_vote_share_pct_muni": 0.810587,
      "target_vote_share_pct_muni": 4.581572,
      "vote_share_delta_pct_pt": 3.770985
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092061",
      "municipality_name": "日光市",
      "municipality_name_en": "Nikko-shi",
      "baseline_votes": 294.0,
      "target_votes": 1600.0,
      "votes_delta": 1306.0,
      "votes_change_rate_pct": 444.217687,
      "baseline_vote_share_pct_muni": 0.892153,
      "target_vote_share_pct_muni": 4.751581,
      "vote_share_delta_pct_pt": 3.859428
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082341",
      "municipality_name": "鉾田市",
      "municipality_name_en": "Hokota-shi",
      "baseline_votes": 131.0,
      "target_votes": 709.0,
      "votes_delta": 578.0,
      "votes_change_rate_pct": 441.221374,
      "baseline_vote_share_pct_muni": 0.706924,
      "target_vote_share_pct_muni": 4.010862,
      "vote_share_delta_pct_pt": 3.303938
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "102032",
      "municipality_name": "桐生市",
      "municipality_name_en": "Kiryu-shi",
      "baseline_votes": 535.0,
      "target_votes": 2880.0,
      "votes_delta": 2345.0,
      "votes_change_rate_pct": 438.317757,
      "baseline_vote_share_pct_muni": 1.19409,
      "target_vote_share_pct_muni": 6.706877,
      "vote_share_delta_pct_pt": 5.512787
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092118",
      "municipality_name": "矢板市",
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      "prefecture_name": "東京都",
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      "jis_code": "131113",
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      "municipality_name": "練馬区",
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      "municipality_name": "世田谷区",
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  ]
}
