{
  "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": "REI",
    "party_label": "れいわ",
    "party_label_en": "Reiwa Shinsengumi",
    "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": -79.387457,
    "max_votes_change_rate_pct": 4.545455
  },
  "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": 22.0,
      "target_votes": 23.0,
      "votes_delta": 1.0,
      "votes_change_rate_pct": 4.545455,
      "baseline_vote_share_pct_muni": 2.474691,
      "target_vote_share_pct_muni": 2.60181,
      "vote_share_delta_pct_pt": 0.127119
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133825",
      "municipality_name": "御蔵島村",
      "municipality_name_en": "Mikurajima-mura",
      "baseline_votes": 17.0,
      "target_votes": 16.0,
      "votes_delta": -1.0,
      "votes_change_rate_pct": -5.882353,
      "baseline_vote_share_pct_muni": 9.714286,
      "target_vote_share_pct_muni": 9.142857,
      "vote_share_delta_pct_pt": -0.571429
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131075",
      "municipality_name": "墨田区",
      "municipality_name_en": "Sumida-ku",
      "baseline_votes": 7745.932,
      "target_votes": 4901.0,
      "votes_delta": -2844.932,
      "votes_change_rate_pct": -36.728079,
      "baseline_vote_share_pct_muni": 5.316466,
      "target_vote_share_pct_muni": 3.474162,
      "vote_share_delta_pct_pt": -1.842304
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "103675",
      "municipality_name": "神流町",
      "municipality_name_en": "Kanna-machi",
      "baseline_votes": 31.0,
      "target_votes": 19.0,
      "votes_delta": -12.0,
      "votes_change_rate_pct": -38.709677,
      "baseline_vote_share_pct_muni": 3.131313,
      "target_vote_share_pct_muni": 1.903808,
      "vote_share_delta_pct_pt": -1.227505
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "112321",
      "municipality_name": "久喜市",
      "municipality_name_en": "Kuki-shi",
      "baseline_votes": 5370.857,
      "target_votes": 3266.0,
      "votes_delta": -2104.857,
      "votes_change_rate_pct": -39.190338,
      "baseline_vote_share_pct_muni": 7.561392,
      "target_vote_share_pct_muni": 4.651362,
      "vote_share_delta_pct_pt": -2.91003
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "113492",
      "municipality_name": "ときがわ町",
      "municipality_name_en": "Tokigawa-machi",
      "baseline_votes": 460.0,
      "target_votes": 273.0,
      "votes_delta": -187.0,
      "votes_change_rate_pct": -40.652174,
      "baseline_vote_share_pct_muni": 8.935509,
      "target_vote_share_pct_muni": 4.584383,
      "vote_share_delta_pct_pt": -4.351126
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133639",
      "municipality_name": "新島村",
      "municipality_name_en": "Niijima-mura",
      "baseline_votes": 66.0,
      "target_votes": 39.0,
      "votes_delta": -27.0,
      "votes_change_rate_pct": -40.909091,
      "baseline_vote_share_pct_muni": 5.851064,
      "target_vote_share_pct_muni": 3.011583,
      "vote_share_delta_pct_pt": -2.839481
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104256",
      "municipality_name": "嬬恋村",
      "municipality_name_en": "Tsumagoi-mura",
      "baseline_votes": 248.0,
      "target_votes": 144.0,
      "votes_delta": -104.0,
      "votes_change_rate_pct": -41.935484,
      "baseline_vote_share_pct_muni": 5.747393,
      "target_vote_share_pct_muni": 3.092784,
      "vote_share_delta_pct_pt": -2.654609
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132039",
      "municipality_name": "武蔵野市",
      "municipality_name_en": "Musashino-shi",
      "baseline_votes": 3676.0,
      "target_votes": 2133.0,
      "votes_delta": -1543.0,
      "votes_change_rate_pct": -41.974973,
      "baseline_vote_share_pct_muni": 4.550293,
      "target_vote_share_pct_muni": 2.641257,
      "vote_share_delta_pct_pt": -1.909036
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "112380",
      "municipality_name": "蓮田市",
      "municipality_name_en": "Hasuda-shi",
      "baseline_votes": 2077.809,
      "target_votes": 1185.0,
      "votes_delta": -892.809,
      "votes_change_rate_pct": -42.968771,
      "baseline_vote_share_pct_muni": 7.084486,
      "target_vote_share_pct_muni": 4.226558,
      "vote_share_delta_pct_pt": -2.857928
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "134015",
      "municipality_name": "八丈町",
      "municipality_name_en": "Hachijo-machi",
      "baseline_votes": 231.0,
      "target_votes": 131.0,
      "votes_delta": -100.0,
      "votes_change_rate_pct": -43.290043,
      "baseline_vote_share_pct_muni": 7.12743,
      "target_vote_share_pct_muni": 3.715258,
      "vote_share_delta_pct_pt": -3.412172
    },
    {
      "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": 196.0,
      "target_votes": 111.0,
      "votes_delta": -85.0,
      "votes_change_rate_pct": -43.367347,
      "baseline_vote_share_pct_muni": 5.771496,
      "target_vote_share_pct_muni": 3.452566,
      "vote_share_delta_pct_pt": -2.31893
    },
    {
      "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": 776.0,
      "target_votes": 435.0,
      "votes_delta": -341.0,
      "votes_change_rate_pct": -43.943299,
      "baseline_vote_share_pct_muni": 7.007405,
      "target_vote_share_pct_muni": 3.558573,
      "vote_share_delta_pct_pt": -3.448832
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082171",
      "municipality_name": "取手市",
      "municipality_name_en": "Toride-shi",
      "baseline_votes": 2779.0,
      "target_votes": 1537.0,
      "votes_delta": -1242.0,
      "votes_change_rate_pct": -44.692335,
      "baseline_vote_share_pct_muni": 5.453083,
      "target_vote_share_pct_muni": 3.180351,
      "vote_share_delta_pct_pt": -2.272732
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "134210",
      "municipality_name": "小笠原村",
      "municipality_name_en": "Ogasawara-mura",
      "baseline_votes": 107.0,
      "target_votes": 59.0,
      "votes_delta": -48.0,
      "votes_change_rate_pct": -44.859813,
      "baseline_vote_share_pct_muni": 9.280139,
      "target_vote_share_pct_muni": 4.64933,
      "vote_share_delta_pct_pt": -4.630809
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "112402",
      "municipality_name": "幸手市",
      "municipality_name_en": "Satte-shi",
      "baseline_votes": 1845.0,
      "target_votes": 1007.0,
      "votes_delta": -838.0,
      "votes_change_rate_pct": -45.420054,
      "baseline_vote_share_pct_muni": 8.405084,
      "target_vote_share_pct_muni": 4.545455,
      "vote_share_delta_pct_pt": -3.859629
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "084425",
      "municipality_name": "美浦村",
      "municipality_name_en": "Miho-mura",
      "baseline_votes": 394.0,
      "target_votes": 215.0,
      "votes_delta": -179.0,
      "votes_change_rate_pct": -45.431472,
      "baseline_vote_share_pct_muni": 6.254961,
      "target_vote_share_pct_muni": 3.688454,
      "vote_share_delta_pct_pt": -2.566507
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "131059",
      "municipality_name": "文京区",
      "municipality_name_en": "Bunkyo-ku",
      "baseline_votes": 4664.0,
      "target_votes": 2543.0,
      "votes_delta": -2121.0,
      "votes_change_rate_pct": -45.475986,
      "baseline_vote_share_pct_muni": 3.658068,
      "target_vote_share_pct_muni": 2.014561,
      "vote_share_delta_pct_pt": -1.643507
    },
    {
      "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": 223.5,
      "target_votes": 121.0,
      "votes_delta": -102.5,
      "votes_change_rate_pct": -45.861298,
      "baseline_vote_share_pct_muni": 6.199723,
      "target_vote_share_pct_muni": 3.2997,
      "vote_share_delta_pct_pt": -2.900023
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "114421",
      "municipality_name": "宮代町",
      "municipality_name_en": "Miyashiro-machi",
      "baseline_votes": 1151.0,
      "target_votes": 623.0,
      "votes_delta": -528.0,
      "votes_change_rate_pct": -45.873154,
      "baseline_vote_share_pct_muni": 7.026004,
      "target_vote_share_pct_muni": 3.982867,
      "vote_share_delta_pct_pt": -3.043137
    },
    {
      "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": 459.0,
      "target_votes": 248.0,
      "votes_delta": -211.0,
      "votes_change_rate_pct": -45.969499,
      "baseline_vote_share_pct_muni": 6.950333,
      "target_vote_share_pct_muni": 3.324842,
      "vote_share_delta_pct_pt": -3.625491
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092134",
      "municipality_name": "那須塩原市",
      "municipality_name_en": "Nasushiobara-shi",
      "baseline_votes": 3880.0,
      "target_votes": 2089.0,
      "votes_delta": -1791.0,
      "votes_change_rate_pct": -46.159794,
      "baseline_vote_share_pct_muni": 8.079294,
      "target_vote_share_pct_muni": 4.003296,
      "vote_share_delta_pct_pt": -4.075998
    },
    {
      "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": 191.8,
      "target_votes": 103.0,
      "votes_delta": -88.8,
      "votes_change_rate_pct": -46.298227,
      "baseline_vote_share_pct_muni": 5.77363,
      "target_vote_share_pct_muni": 2.932802,
      "vote_share_delta_pct_pt": -2.840828
    },
    {
      "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": 140.0,
      "target_votes": 75.0,
      "votes_delta": -65.0,
      "votes_change_rate_pct": -46.428571,
      "baseline_vote_share_pct_muni": 4.477135,
      "target_vote_share_pct_muni": 2.396932,
      "vote_share_delta_pct_pt": -2.080203
    },
    {
      "prefecture_code": "12",
      "prefecture_name": "千葉県",
      "prefecture_name_en": "Chiba",
      "jis_code": "122351",
      "municipality_name": "匝瑳市",
      "municipality_name_en": "Sosa-shi",
      "baseline_votes": 1031.0,
      "target_votes": 551.0,
      "votes_delta": -480.0,
      "votes_change_rate_pct": -46.556741,
      "baseline_vote_share_pct_muni": 7.359555,
      "target_vote_share_pct_muni": 3.393066,
      "vote_share_delta_pct_pt": -3.966489
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132144",
      "municipality_name": "国分寺市",
      "municipality_name_en": "Kokubunji-shi",
      "baseline_votes": 3556.0,
      "target_votes": 1889.0,
      "votes_delta": -1667.0,
      "votes_change_rate_pct": -46.878515,
      "baseline_vote_share_pct_muni": 5.13361,
      "target_vote_share_pct_muni": 2.755211,
      "vote_share_delta_pct_pt": -2.378399
    },
    {
      "prefecture_code": "12",
      "prefecture_name": "千葉県",
      "prefecture_name_en": "Chiba",
      "jis_code": "124435",
      "municipality_name": "御宿町",
      "municipality_name_en": "Onjuku-machi",
      "baseline_votes": 253.0,
      "target_votes": 134.0,
      "votes_delta": -119.0,
      "votes_change_rate_pct": -47.035573,
      "baseline_vote_share_pct_muni": 7.615894,
      "target_vote_share_pct_muni": 3.971547,
      "vote_share_delta_pct_pt": -3.644347
    },
    {
      "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": 731.909,
      "target_votes": 387.0,
      "votes_delta": -344.909,
      "votes_change_rate_pct": -47.124574,
      "baseline_vote_share_pct_muni": 8.440883,
      "target_vote_share_pct_muni": 4.256489,
      "vote_share_delta_pct_pt": -4.184394
    },
    {
      "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": 350.0,
      "target_votes": 185.0,
      "votes_delta": -165.0,
      "votes_change_rate_pct": -47.142857,
      "baseline_vote_share_pct_muni": 5.515285,
      "target_vote_share_pct_muni": 2.762843,
      "vote_share_delta_pct_pt": -2.752442
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082244",
      "municipality_name": "守谷市",
      "municipality_name_en": "Moriya-shi",
      "baseline_votes": 1788.0,
      "target_votes": 935.0,
      "votes_delta": -853.0,
      "votes_change_rate_pct": -47.706935,
      "baseline_vote_share_pct_muni": 5.161216,
      "target_vote_share_pct_muni": 2.763656,
      "vote_share_delta_pct_pt": -2.39756
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "132047",
      "municipality_name": "三鷹市",
      "municipality_name_en": "Mitaka-shi",
      "baseline_votes": 5818.186,
      "target_votes": 3034.0,
      "votes_delta": -2784.186,
      "votes_change_rate_pct": -47.853162,
      "baseline_vote_share_pct_muni": 5.754996,
      "target_vote_share_pct_muni": 3.110168,
      "vote_share_delta_pct_pt": -2.644828
    },
    {
      "prefecture_code": "14",
      "prefecture_name": "神奈川県",
      "prefecture_name_en": "Kanagawa",
      "jis_code": "143413",
      "municipality_name": "大磯町",
      "municipality_name_en": "Oiso-machi",
      "baseline_votes": 1281.0,
      "target_votes": 668.0,
      "votes_delta": -613.0,
      "votes_change_rate_pct": -47.85324,
      "baseline_vote_share_pct_muni": 7.858414,
      "target_vote_share_pct_muni": 4.582562,
      "vote_share_delta_pct_pt": -3.275852
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "113018",
      "municipality_name": "伊奈町",
      "municipality_name_en": "Ina-machi",
      "baseline_votes": 1793.0,
      "target_votes": 934.0,
      "votes_delta": -859.0,
      "votes_change_rate_pct": -47.908533,
      "baseline_vote_share_pct_muni": 8.806483,
      "target_vote_share_pct_muni": 4.860786,
      "vote_share_delta_pct_pt": -3.945697
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}
