{
  "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": "DPP",
    "party_label": "国民",
    "party_label_en": "Democratic Party for the People",
    "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": -64.821006,
    "max_votes_change_rate_pct": 93.023576
  },
  "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": 21.759,
      "target_votes": 42.0,
      "votes_delta": 20.241,
      "votes_change_rate_pct": 93.023576,
      "baseline_vote_share_pct_muni": 2.447582,
      "target_vote_share_pct_muni": 4.751131,
      "vote_share_delta_pct_pt": 2.303549
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133078",
      "municipality_name": "檜原村",
      "municipality_name_en": "Hinohara-mura",
      "baseline_votes": 64.017,
      "target_votes": 86.0,
      "votes_delta": 21.983,
      "votes_change_rate_pct": 34.339316,
      "baseline_vote_share_pct_muni": 6.050756,
      "target_vote_share_pct_muni": 8.293153,
      "vote_share_delta_pct_pt": 2.242397
    },
    {
      "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": 490.487,
      "target_votes": 567.0,
      "votes_delta": 76.513,
      "votes_change_rate_pct": 15.599394,
      "baseline_vote_share_pct_muni": 7.42712,
      "target_vote_share_pct_muni": 7.601555,
      "vote_share_delta_pct_pt": 0.174435
    },
    {
      "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": 899.285,
      "target_votes": 1038.0,
      "votes_delta": 138.715,
      "votes_change_rate_pct": 15.425032,
      "baseline_vote_share_pct_muni": 8.120688,
      "target_vote_share_pct_muni": 8.491492,
      "vote_share_delta_pct_pt": 0.370804
    },
    {
      "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": 478.378,
      "target_votes": 511.0,
      "votes_delta": 32.622,
      "votes_change_rate_pct": 6.819294,
      "baseline_vote_share_pct_muni": 9.292502,
      "target_vote_share_pct_muni": 8.581024,
      "vote_share_delta_pct_pt": -0.711478
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "103667",
      "municipality_name": "上野村",
      "municipality_name_en": "Ueno-mura",
      "baseline_votes": 38.272,
      "target_votes": 40.0,
      "votes_delta": 1.728,
      "votes_change_rate_pct": 4.51505,
      "baseline_vote_share_pct_muni": 5.906173,
      "target_vote_share_pct_muni": 6.18238,
      "vote_share_delta_pct_pt": 0.276207
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "094072",
      "municipality_name": "那須町",
      "municipality_name_en": "Nasu-machi",
      "baseline_votes": 913.742,
      "target_votes": 954.0,
      "votes_delta": 40.258,
      "votes_change_rate_pct": 4.405839,
      "baseline_vote_share_pct_muni": 8.081206,
      "target_vote_share_pct_muni": 7.719071,
      "vote_share_delta_pct_pt": -0.362135
    },
    {
      "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": 301.382,
      "target_votes": 310.0,
      "votes_delta": 8.618,
      "votes_change_rate_pct": 2.859494,
      "baseline_vote_share_pct_muni": 6.984519,
      "target_vote_share_pct_muni": 6.658076,
      "vote_share_delta_pct_pt": -0.326443
    },
    {
      "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": 1799.631,
      "target_votes": 1848.0,
      "votes_delta": 48.369,
      "votes_change_rate_pct": 2.687718,
      "baseline_vote_share_pct_muni": 15.029489,
      "target_vote_share_pct_muni": 16.015253,
      "vote_share_delta_pct_pt": 0.985764
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104442",
      "municipality_name": "川場村",
      "municipality_name_en": "Kawaba-mura",
      "baseline_votes": 91.0,
      "target_votes": 93.0,
      "votes_delta": 2.0,
      "votes_change_rate_pct": 2.197802,
      "baseline_vote_share_pct_muni": 5.785124,
      "target_vote_share_pct_muni": 5.819775,
      "vote_share_delta_pct_pt": 0.034651
    },
    {
      "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": 165.555,
      "target_votes": 169.0,
      "votes_delta": 3.445,
      "votes_change_rate_pct": 2.080879,
      "baseline_vote_share_pct_muni": 5.989689,
      "target_vote_share_pct_muni": 6.438095,
      "vote_share_delta_pct_pt": 0.448406
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104280",
      "municipality_name": "高山村",
      "municipality_name_en": "Takayama-mura",
      "baseline_votes": 126.61,
      "target_votes": 128.0,
      "votes_delta": 1.39,
      "votes_change_rate_pct": 1.09786,
      "baseline_vote_share_pct_muni": 7.650151,
      "target_vote_share_pct_muni": 7.683073,
      "vote_share_delta_pct_pt": 0.032922
    },
    {
      "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": 2674.348,
      "target_votes": 2702.0,
      "votes_delta": 27.652,
      "votes_change_rate_pct": 1.033972,
      "baseline_vote_share_pct_muni": 14.858314,
      "target_vote_share_pct_muni": 15.120313,
      "vote_share_delta_pct_pt": 0.261999
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092029",
      "municipality_name": "足利市",
      "municipality_name_en": "Ashikaga-shi",
      "baseline_votes": 5759.142,
      "target_votes": 5695.0,
      "votes_delta": -64.142,
      "votes_change_rate_pct": -1.113742,
      "baseline_vote_share_pct_muni": 10.241388,
      "target_vote_share_pct_muni": 10.165831,
      "vote_share_delta_pct_pt": -0.075557
    },
    {
      "prefecture_code": "13",
      "prefecture_name": "東京都",
      "prefecture_name_en": "Tokyo",
      "jis_code": "133620",
      "municipality_name": "利島村",
      "municipality_name_en": "Toshima-mura",
      "baseline_votes": 23.076,
      "target_votes": 22.0,
      "votes_delta": -1.076,
      "votes_change_rate_pct": -4.662853,
      "baseline_vote_share_pct_muni": 12.274468,
      "target_vote_share_pct_muni": 10.837438,
      "vote_share_delta_pct_pt": -1.43703
    },
    {
      "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": 2675.45,
      "target_votes": 2527.0,
      "votes_delta": -148.45,
      "votes_change_rate_pct": -5.548599,
      "baseline_vote_share_pct_muni": 12.188283,
      "target_vote_share_pct_muni": 11.406518,
      "vote_share_delta_pct_pt": -0.781765
    },
    {
      "prefecture_code": "14",
      "prefecture_name": "神奈川県",
      "prefecture_name_en": "Kanagawa",
      "jis_code": "143642",
      "municipality_name": "山北町",
      "municipality_name_en": "Yamakita-machi",
      "baseline_votes": 435.883,
      "target_votes": 411.0,
      "votes_delta": -24.883,
      "votes_change_rate_pct": -5.708642,
      "baseline_vote_share_pct_muni": 8.47362,
      "target_vote_share_pct_muni": 8.700254,
      "vote_share_delta_pct_pt": 0.226634
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092100",
      "municipality_name": "大田原市",
      "municipality_name_en": "Ohtawara-shi",
      "baseline_votes": 3021.533,
      "target_votes": 2844.0,
      "votes_delta": -177.533,
      "votes_change_rate_pct": -5.875594,
      "baseline_vote_share_pct_muni": 10.459112,
      "target_vote_share_pct_muni": 8.938899,
      "vote_share_delta_pct_pt": -1.520213
    },
    {
      "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": 10375.806,
      "target_votes": 9753.0,
      "votes_delta": -622.806,
      "votes_change_rate_pct": -6.002483,
      "baseline_vote_share_pct_muni": 14.607639,
      "target_vote_share_pct_muni": 13.889997,
      "vote_share_delta_pct_pt": -0.717642
    },
    {
      "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": 598.5110000000001,
      "target_votes": 562.0,
      "votes_delta": -36.5110000000001,
      "votes_change_rate_pct": -6.100306,
      "baseline_vote_share_pct_muni": 7.539821,
      "target_vote_share_pct_muni": 6.925447,
      "vote_share_delta_pct_pt": -0.614374
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092118",
      "municipality_name": "矢板市",
      "municipality_name_en": "Yaita-shi",
      "baseline_votes": 1343.02,
      "target_votes": 1261.0,
      "votes_delta": -82.02,
      "votes_change_rate_pct": -6.107132,
      "baseline_vote_share_pct_muni": 9.858475,
      "target_vote_share_pct_muni": 8.654176,
      "vote_share_delta_pct_pt": -1.204299
    },
    {
      "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": 429.268,
      "target_votes": 398.0,
      "votes_delta": -31.268,
      "votes_change_rate_pct": -7.284028,
      "baseline_vote_share_pct_muni": 7.240142,
      "target_vote_share_pct_muni": 6.689076,
      "vote_share_delta_pct_pt": -0.551066
    },
    {
      "prefecture_code": "14",
      "prefecture_name": "神奈川県",
      "prefecture_name_en": "Kanagawa",
      "jis_code": "143839",
      "municipality_name": "真鶴町",
      "municipality_name_en": "Manazuru-machi",
      "baseline_votes": 277.216,
      "target_votes": 254.0,
      "votes_delta": -23.216,
      "votes_change_rate_pct": -8.374697,
      "baseline_vote_share_pct_muni": 7.776045,
      "target_vote_share_pct_muni": 8.265539,
      "vote_share_delta_pct_pt": 0.489494
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "113697",
      "municipality_name": "東秩父村",
      "municipality_name_en": "Higashichichibu-mura",
      "baseline_votes": 129.245,
      "target_votes": 118.0,
      "votes_delta": -11.245,
      "votes_change_rate_pct": -8.70053,
      "baseline_vote_share_pct_muni": 9.025489,
      "target_vote_share_pct_muni": 8.211552,
      "vote_share_delta_pct_pt": -0.813937
    },
    {
      "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": 1155.207,
      "target_votes": 1053.0,
      "votes_delta": -102.207,
      "votes_change_rate_pct": -8.847505,
      "baseline_vote_share_pct_muni": 7.440468,
      "target_vote_share_pct_muni": 6.515686,
      "vote_share_delta_pct_pt": -0.924782
    },
    {
      "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": 4262.224,
      "target_votes": 3878.0,
      "votes_delta": -384.224,
      "votes_change_rate_pct": -9.014636,
      "baseline_vote_share_pct_muni": 14.532456,
      "target_vote_share_pct_muni": 13.831722,
      "vote_share_delta_pct_pt": -0.700734
    },
    {
      "prefecture_code": "10",
      "prefecture_name": "群馬県",
      "prefecture_name_en": "Gunma",
      "jis_code": "104485",
      "municipality_name": "昭和村",
      "municipality_name_en": "Showa-mura",
      "baseline_votes": 250.99900000000002,
      "target_votes": 227.0,
      "votes_delta": -23.99900000000002,
      "votes_change_rate_pct": -9.561393,
      "baseline_vote_share_pct_muni": 8.283795,
      "target_vote_share_pct_muni": 7.087106,
      "vote_share_delta_pct_pt": -1.196689
    },
    {
      "prefecture_code": "09",
      "prefecture_name": "栃木県",
      "prefecture_name_en": "Tochigi",
      "jis_code": "092045",
      "municipality_name": "佐野市",
      "municipality_name_en": "Sano-shi",
      "baseline_votes": 5156.71,
      "target_votes": 4655.0,
      "votes_delta": -501.71,
      "votes_change_rate_pct": -9.729265,
      "baseline_vote_share_pct_muni": 10.903057,
      "target_vote_share_pct_muni": 9.970656,
      "vote_share_delta_pct_pt": -0.932401
    },
    {
      "prefecture_code": "14",
      "prefecture_name": "神奈川県",
      "prefecture_name_en": "Kanagawa",
      "jis_code": "143847",
      "municipality_name": "湯河原町",
      "municipality_name_en": "Yugawara-machi",
      "baseline_votes": 1006.52,
      "target_votes": 904.0,
      "votes_delta": -102.52,
      "votes_change_rate_pct": -10.18559,
      "baseline_vote_share_pct_muni": 8.829897,
      "target_vote_share_pct_muni": 8.736832,
      "vote_share_delta_pct_pt": -0.093065
    },
    {
      "prefecture_code": "12",
      "prefecture_name": "千葉県",
      "prefecture_name_en": "Chiba",
      "jis_code": "122050",
      "municipality_name": "館山市",
      "municipality_name_en": "Tateyama-shi",
      "baseline_votes": 1665.245,
      "target_votes": 1492.0,
      "votes_delta": -173.245,
      "votes_change_rate_pct": -10.403574,
      "baseline_vote_share_pct_muni": 9.062065,
      "target_vote_share_pct_muni": 7.803755,
      "vote_share_delta_pct_pt": -1.25831
    },
    {
      "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": 185.716,
      "target_votes": 166.0,
      "votes_delta": -19.716,
      "votes_change_rate_pct": -10.61621,
      "baseline_vote_share_pct_muni": 5.939111,
      "target_vote_share_pct_muni": 5.305209,
      "vote_share_delta_pct_pt": -0.633902
    },
    {
      "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": 15678.874,
      "target_votes": 13915.0,
      "votes_delta": -1763.874,
      "votes_change_rate_pct": -11.250004,
      "baseline_vote_share_pct_muni": 20.954618,
      "target_vote_share_pct_muni": 19.106925,
      "vote_share_delta_pct_pt": -1.847693
    },
    {
      "prefecture_code": "11",
      "prefecture_name": "埼玉県",
      "prefecture_name_en": "Saitama",
      "jis_code": "112461",
      "municipality_name": "白岡市",
      "municipality_name_en": "Shiraoka-shi",
      "baseline_votes": 4073.522,
      "target_votes": 3602.0,
      "votes_delta": -471.522,
      "votes_change_rate_pct": -11.57529,
      "baseline_vote_share_pct_muni": 16.368072,
      "target_vote_share_pct_muni": 14.951021,
      "vote_share_delta_pct_pt": -1.417051
    },
    {
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