{
  "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",
  "selector": {
    "prefecture_code": "08",
    "prefecture_name": "茨城県",
    "prefecture_name_en": "Ibaraki",
    "party_id": "TMI",
    "party_label": "みらい",
    "party_label_en": "Team Mirai",
    "scope": "prefecture",
    "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": 44,
    "municipality_count": 44,
    "min_votes_change_rate_pct": 185.411873,
    "max_votes_change_rate_pct": 662.5
  },
  "municipalities": [
    {
      "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": "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": "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": "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": "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": "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": "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": "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": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "085642",
      "municipality_name": "利根町",
      "municipality_name_en": "Tone-machi",
      "baseline_votes": 72.0,
      "target_votes": 378.0,
      "votes_delta": 306.0,
      "votes_change_rate_pct": 425.0,
      "baseline_vote_share_pct_muni": 0.883652,
      "target_vote_share_pct_muni": 5.26096,
      "vote_share_delta_pct_pt": 4.377308
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "083097",
      "municipality_name": "大洗町",
      "municipality_name_en": "Oarai-machi",
      "baseline_votes": 64.0,
      "target_votes": 335.0,
      "votes_delta": 271.0,
      "votes_change_rate_pct": 423.4375,
      "baseline_vote_share_pct_muni": 0.962551,
      "target_vote_share_pct_muni": 5.26564,
      "vote_share_delta_pct_pt": 4.303089
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082023",
      "municipality_name": "日立市",
      "municipality_name_en": "Hitachi-shi",
      "baseline_votes": 754.935,
      "target_votes": 3941.0,
      "votes_delta": 3186.065,
      "votes_change_rate_pct": 422.031698,
      "baseline_vote_share_pct_muni": 1.008961,
      "target_vote_share_pct_muni": 5.411455,
      "vote_share_delta_pct_pt": 4.402494
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082295",
      "municipality_name": "稲敷市",
      "municipality_name_en": "Inashiki-shi",
      "baseline_votes": 113.0,
      "target_votes": 589.0,
      "votes_delta": 476.0,
      "votes_change_rate_pct": 421.238938,
      "baseline_vote_share_pct_muni": 0.716232,
      "target_vote_share_pct_muni": 3.934536,
      "vote_share_delta_pct_pt": 3.218304
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082368",
      "municipality_name": "小美玉市",
      "municipality_name_en": "Omitama-shi",
      "baseline_votes": 187.0,
      "target_votes": 965.0,
      "votes_delta": 778.0,
      "votes_change_rate_pct": 416.042781,
      "baseline_vote_share_pct_muni": 0.913755,
      "target_vote_share_pct_muni": 4.954562,
      "vote_share_delta_pct_pt": 4.040807
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082112",
      "municipality_name": "常総市",
      "municipality_name_en": "Joso-shi",
      "baseline_votes": 230.0,
      "target_votes": 1178.0,
      "votes_delta": 948.0,
      "votes_change_rate_pct": 412.173913,
      "baseline_vote_share_pct_muni": 0.965373,
      "target_vote_share_pct_muni": 4.888372,
      "vote_share_delta_pct_pt": 3.922999
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082279",
      "municipality_name": "筑西市",
      "municipality_name_en": "Chikusei-shi",
      "baseline_votes": 418.0,
      "target_votes": 2138.0,
      "votes_delta": 1720.0,
      "votes_change_rate_pct": 411.483254,
      "baseline_vote_share_pct_muni": 1.007836,
      "target_vote_share_pct_muni": 5.015247,
      "vote_share_delta_pct_pt": 4.007411
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082104",
      "municipality_name": "下妻市",
      "municipality_name_en": "Shimotsuma-shi",
      "baseline_votes": 160.0,
      "target_votes": 812.0,
      "votes_delta": 652.0,
      "votes_change_rate_pct": 407.5,
      "baseline_vote_share_pct_muni": 0.942119,
      "target_vote_share_pct_muni": 4.819849,
      "vote_share_delta_pct_pt": 3.87773
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082287",
      "municipality_name": "坂東市",
      "municipality_name_en": "Bando-shi",
      "baseline_votes": 179.0,
      "target_votes": 886.0,
      "votes_delta": 707.0,
      "votes_change_rate_pct": 394.972067,
      "baseline_vote_share_pct_muni": 0.899497,
      "target_vote_share_pct_muni": 4.206229,
      "vote_share_delta_pct_pt": 3.306732
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082058",
      "municipality_name": "石岡市",
      "municipality_name_en": "Ishioka-shi",
      "baseline_votes": 345.0,
      "target_votes": 1704.0,
      "votes_delta": 1359.0,
      "votes_change_rate_pct": 393.913043,
      "baseline_vote_share_pct_muni": 1.115963,
      "target_vote_share_pct_muni": 5.48439,
      "vote_share_delta_pct_pt": 4.368427
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082082",
      "municipality_name": "龍ケ崎市",
      "municipality_name_en": "Ryugasaki-shi",
      "baseline_votes": 451.0,
      "target_votes": 2183.0,
      "votes_delta": 1732.0,
      "votes_change_rate_pct": 384.035477,
      "baseline_vote_share_pct_muni": 1.325535,
      "target_vote_share_pct_muni": 7.033994,
      "vote_share_delta_pct_pt": 5.708459
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082040",
      "municipality_name": "古河市",
      "municipality_name_en": "Koga-shi",
      "baseline_votes": 674.0,
      "target_votes": 3240.0,
      "votes_delta": 2566.0,
      "votes_change_rate_pct": 380.712166,
      "baseline_vote_share_pct_muni": 1.194442,
      "target_vote_share_pct_muni": 5.738678,
      "vote_share_delta_pct_pt": 4.544236
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082163",
      "municipality_name": "笠間市",
      "municipality_name_en": "Kasama-shi",
      "baseline_votes": 366.0,
      "target_votes": 1755.0,
      "votes_delta": 1389.0,
      "votes_change_rate_pct": 379.508197,
      "baseline_vote_share_pct_muni": 1.110673,
      "target_vote_share_pct_muni": 5.540647,
      "vote_share_delta_pct_pt": 4.429974
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082236",
      "municipality_name": "潮来市",
      "municipality_name_en": "Itako-shi",
      "baseline_votes": 101.0,
      "target_votes": 477.0,
      "votes_delta": 376.0,
      "votes_change_rate_pct": 372.277228,
      "baseline_vote_share_pct_muni": 0.861995,
      "target_vote_share_pct_muni": 4.604247,
      "vote_share_delta_pct_pt": 3.742252
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082074",
      "municipality_name": "結城市",
      "municipality_name_en": "Yuki-shi",
      "baseline_votes": 252.0,
      "target_votes": 1188.0,
      "votes_delta": 936.0,
      "votes_change_rate_pct": 371.428571,
      "baseline_vote_share_pct_muni": 1.229628,
      "target_vote_share_pct_muni": 5.809859,
      "vote_share_delta_pct_pt": 4.580231
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082317",
      "municipality_name": "桜川市",
      "municipality_name_en": "Sakuragawa-shi",
      "baseline_votes": 172.0,
      "target_votes": 799.0,
      "votes_delta": 627.0,
      "votes_change_rate_pct": 364.534884,
      "baseline_vote_share_pct_muni": 1.003969,
      "target_vote_share_pct_muni": 4.565714,
      "vote_share_delta_pct_pt": 3.561745
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "083020",
      "municipality_name": "茨城町",
      "municipality_name_en": "Ibaraki-machi",
      "baseline_votes": 126.0,
      "target_votes": 585.0,
      "votes_delta": 459.0,
      "votes_change_rate_pct": 364.285714,
      "baseline_vote_share_pct_muni": 0.982839,
      "target_vote_share_pct_muni": 4.858804,
      "vote_share_delta_pct_pt": 3.875965
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082309",
      "municipality_name": "かすみがうら市",
      "municipality_name_en": "Kasumigaura-shi",
      "baseline_votes": 190.0,
      "target_votes": 871.0,
      "votes_delta": 681.0,
      "votes_change_rate_pct": 358.421053,
      "baseline_vote_share_pct_muni": 1.062343,
      "target_vote_share_pct_muni": 4.844271,
      "vote_share_delta_pct_pt": 3.781928
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082333",
      "municipality_name": "行方市",
      "municipality_name_en": "Namegata-shi",
      "baseline_votes": 118.0,
      "target_votes": 531.0,
      "votes_delta": 413.0,
      "votes_change_rate_pct": 350.0,
      "baseline_vote_share_pct_muni": 0.864912,
      "target_vote_share_pct_muni": 3.796925,
      "vote_share_delta_pct_pt": 2.932013
    },
    {
      "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": 782.0,
      "target_votes": 3478.0,
      "votes_delta": 2696.0,
      "votes_change_rate_pct": 344.757033,
      "baseline_vote_share_pct_muni": 1.534477,
      "target_vote_share_pct_muni": 7.196656,
      "vote_share_delta_pct_pt": 5.662179
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082031",
      "municipality_name": "土浦市",
      "municipality_name_en": "Tsuchiura-shi",
      "baseline_votes": 921.0,
      "target_votes": 4050.0,
      "votes_delta": 3129.0,
      "votes_change_rate_pct": 339.739414,
      "baseline_vote_share_pct_muni": 1.459565,
      "target_vote_share_pct_muni": 6.582583,
      "vote_share_delta_pct_pt": 5.123018
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082198",
      "municipality_name": "牛久市",
      "municipality_name_en": "Ushiku-shi",
      "baseline_votes": 729.0,
      "target_votes": 3160.0,
      "votes_delta": 2431.0,
      "votes_change_rate_pct": 333.470508,
      "baseline_vote_share_pct_muni": 1.777312,
      "target_vote_share_pct_muni": 8.166008,
      "vote_share_delta_pct_pt": 6.388696
    },
    {
      "prefecture_code": "08",
      "prefecture_name": "茨城県",
      "prefecture_name_en": "Ibaraki",
      "jis_code": "082015",
      "municipality_name": "水戸市",
      "municipality_name_en": "Mito-shi",
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      "target_votes": 8157.0,
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      "prefecture_name": "茨城県",
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      "jis_code": "084433",
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  ]
}
