{
  "metadata": {
    "release": "2026-07-31-v3.1-charts-map",
    "dataset_version": "2026-07-27",
    "generated_at": "2026-07-31T21:49:26+09:00",
    "source_dates": {
      "tochigi_prefecture": "2026-07-01",
      "utsunomiya_city": "2026-03-01"
    },
    "map_geometry": {
      "title": "Growth rate map of municipalities of Tochigi prefecture, Japan 2015-2020.svg",
      "source_page": "https://commons.wikimedia.org/wiki/File:Growth_rate_map_of_municipalities_of_Tochigi_prefecture,_Japan_2015-2020.svg",
      "license": "CC BY-SA 3.0",
      "base_map_note": "現行25市町に合わせ、旧西方町・大平町・藤岡町・岩舟町・都賀町を栃木市へ統合。境界形状の基図は2009年行政区画地図由来。",
      "processed_date": "2026-07-31"
    },
    "notes": {
      "units": "市町・圏域別の関連管理単位数は、複数地域に住居を持つ管理単位を各地域で数える延べ数です。",
      "map": "個別住居の位置、完全住所、緯度・経度は表示しません。"
    }
  },
  "items": [
    {
      "name": "県北保健医療圏",
      "short_name": "県北",
      "municipalities": 9,
      "residences": 123,
      "capacity": 801,
      "units": 52,
      "confirmed": 52,
      "capacity_share": 15.22
    },
    {
      "name": "県西保健医療圏",
      "short_name": "県西",
      "municipalities": 2,
      "residences": 80,
      "capacity": 536,
      "units": 27,
      "confirmed": 27,
      "capacity_share": 10.19
    },
    {
      "name": "宇都宮保健医療圏",
      "short_name": "宇都宮",
      "municipalities": 1,
      "residences": 208,
      "capacity": 1669,
      "units": 65,
      "confirmed": 2,
      "capacity_share": 31.72
    },
    {
      "name": "県東保健医療圏",
      "short_name": "県東",
      "municipalities": 5,
      "residences": 37,
      "capacity": 243,
      "units": 13,
      "confirmed": 13,
      "capacity_share": 4.62
    },
    {
      "name": "県南保健医療圏",
      "short_name": "県南",
      "municipalities": 6,
      "residences": 166,
      "capacity": 1170,
      "units": 59,
      "confirmed": 59,
      "capacity_share": 22.23
    },
    {
      "name": "両毛保健医療圏",
      "short_name": "両毛",
      "municipalities": 2,
      "residences": 113,
      "capacity": 843,
      "units": 42,
      "confirmed": 42,
      "capacity_share": 16.02
    }
  ]
}