{
  "version": "2026-04-30-real-data-v1",
  "generatedAt": "2026-04-29T20:54:55.364Z",
  "prefecture": {
    "code": "20",
    "slug": "nagano",
    "name": "長野県",
    "region": "中部",
    "center": {
      "lat": 36.65139,
      "lng": 138.18111,
      "zoom": 6
    }
  },
  "metrics": {
    "transactionPrice": {
      "median": 8900000,
      "average": 17284885,
      "count": 5285,
      "unit": "円",
      "period": "2024",
      "sourceId": "reinfolib-xit001",
      "missingReason": null
    },
    "landPrice": {
      "median": 30450,
      "average": 37171,
      "count": 416,
      "unit": "円/m²",
      "period": "2026",
      "sourceId": "reinfolib-xct001",
      "missingReason": null
    },
    "population": {
      "latest": 2048011,
      "year": 2020,
      "changeRate5y": null,
      "unit": "人",
      "sourceId": "estat-population",
      "missingReason": "2020年国勢調査の都道府県別総人口を掲載。5年増減率は同一表内で算出できる過去年が未確認のため未掲載です。"
    },
    "hazardRisk": {
      "score": null,
      "level": "要地域確認",
      "summary": "長野県の災害リスクは住所、地形、自治体ハザードマップで判定が変わります。Phase 1では国土数値情報の公式入口を確認し、重い災害GeoJSONの全面同梱は行っていません。",
      "sourceId": "ksj-hazard",
      "missingReason": "国土数値情報の災害データは住所単位の確認が必要なため、県別の単一スコアには集約していません。",
      "indicators": [
        {
          "label": "住所単位確認",
          "value": "自治体ハザードマップ必須",
          "sourceId": "ksj-hazard"
        },
        {
          "label": "Phase 1方針",
          "value": "巨大GeoJSON同梱なし",
          "sourceId": "ksj-hazard"
        }
      ]
    }
  },
  "landPrice": {
    "municipalityRanking": [
      {
        "municipalityCode": "20201",
        "municipality": "長野市",
        "median": 55200,
        "average": 53371,
        "count": 92,
        "lat": 36.641401,
        "lng": 138.199919
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      {
        "municipalityCode": "20202",
        "municipality": "松本市",
        "median": 52650,
        "average": 49978,
        "count": 68,
        "lat": 36.220478,
        "lng": 137.952161
      },
      {
        "municipalityCode": "20215",
        "municipality": "塩尻市",
        "median": 51250,
        "average": 40481,
        "count": 16,
        "lat": 36.125527,
        "lng": 137.963781
      },
      {
        "municipalityCode": "20541",
        "municipality": "小布施町",
        "median": 42250,
        "average": 33767,
        "count": 6,
        "lat": 36.69924,
        "lng": 138.316209
      },
      {
        "municipalityCode": "20206",
        "municipality": "諏訪市",
        "median": 42050,
        "average": 36883,
        "count": 6,
        "lat": 36.044639,
        "lng": 138.117917
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      {
        "municipalityCode": "20214",
        "municipality": "茅野市",
        "median": 40800,
        "average": 40800,
        "count": 4,
        "lat": 35.994213,
        "lng": 138.153163
      },
      {
        "municipalityCode": "20361",
        "municipality": "下諏訪町",
        "median": 40550,
        "average": 40550,
        "count": 4,
        "lat": 36.070817,
        "lng": 138.085636
      },
      {
        "municipalityCode": "20204",
        "municipality": "岡谷市",
        "median": 39900,
        "average": 39667,
        "count": 6,
        "lat": 36.064724,
        "lng": 138.052781
      },
      {
        "municipalityCode": "20203",
        "municipality": "上田市",
        "median": 39700,
        "average": 38570,
        "count": 20,
        "lat": 36.389492,
        "lng": 138.248189
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      {
        "municipalityCode": "20207",
        "municipality": "須坂市",
        "median": 36550,
        "average": 31158,
        "count": 12,
        "lat": 36.655394,
        "lng": 138.303741
      },
      {
        "municipalityCode": "20321",
        "municipality": "軽井沢町",
        "median": 34550,
        "average": 71192,
        "count": 12,
        "lat": 36.341509,
        "lng": 138.608303
      },
      {
        "municipalityCode": "20211",
        "municipality": "中野市",
        "median": 33800,
        "average": 33833,
        "count": 6,
        "lat": 36.750019,
        "lng": 138.37462
      },
      {
        "municipalityCode": "20217",
        "municipality": "佐久市",
        "median": 30250,
        "average": 29388,
        "count": 8,
        "lat": 36.229767,
        "lng": 138.4763
      },
      {
        "municipalityCode": "20563",
        "municipality": "野沢温泉村",
        "median": 29500,
        "average": 29325,
        "count": 4,
        "lat": 36.918787,
        "lng": 138.4467
      },
      {
        "municipalityCode": "20205",
        "municipality": "飯田市",
        "median": 27500,
        "average": 24000,
        "count": 10,
        "lat": 35.499002,
        "lng": 137.826711
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      {
        "municipalityCode": "20219",
        "municipality": "東御市",
        "median": 27000,
        "average": 27050,
        "count": 4,
        "lat": 36.356315,
        "lng": 138.34227
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      {
        "municipalityCode": "20218",
        "municipality": "千曲市",
        "median": 26150,
        "average": 28975,
        "count": 8,
        "lat": 36.504835,
        "lng": 138.130283
      },
      {
        "municipalityCode": "20208",
        "municipality": "小諸市",
        "median": 25650,
        "average": 23967,
        "count": 6,
        "lat": 36.322711,
        "lng": 138.428614
      },
      {
        "municipalityCode": "20209",
        "municipality": "伊那市",
        "median": 25300,
        "average": 21867,
        "count": 6,
        "lat": 35.839505,
        "lng": 137.992164
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      {
        "municipalityCode": "20220",
        "municipality": "安曇野市",
        "median": 23750,
        "average": 24268,
        "count": 22,
        "lat": 36.313203,
        "lng": 137.894328
      }
    ],
    "points": [
      {
        "municipalityCode": "20321",
        "municipality": "軽井沢町",
        "pricePerSquareMeter": 195000,
        "lat": 36.35816,
        "lng": 138.62932028,
        "address": "大字軽井沢字上御原３０８番１１外"
      },
      {
        "municipalityCode": "20321",
        "municipality": "軽井沢町",
        "pricePerSquareMeter": 194000,
        "lat": 36.35816,
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        "address": "大字軽井沢字上御原３０８番１１外"
      },
      {
        "municipalityCode": "20201",
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        "lat": 36.64038694,
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        "address": "大字栗田字西番場１６１１番"
      },
      {
        "municipalityCode": "20201",
        "municipality": "長野市",
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        "lat": 36.64038694,
        "lng": 138.18923111,
        "address": "大字栗田字西番場１６１１番"
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      {
        "municipalityCode": "20321",
        "municipality": "軽井沢町",
        "pricePerSquareMeter": 118000,
        "lat": 36.33650028,
        "lng": 138.61833083,
        "address": "大字軽井沢字長倉往還南原１０５２番１４２"
      },
      {
        "municipalityCode": "20321",
        "municipality": "軽井沢町",
        "pricePerSquareMeter": 118000,
        "lat": 36.33650028,
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      {
        "municipalityCode": "20201",
        "municipality": "長野市",
        "pricePerSquareMeter": 100000,
        "lat": 36.63350694,
        "lng": 138.18665194,
        "address": "若里１－１９－４７"
      },
      {
        "municipalityCode": "20201",
        "municipality": "長野市",
        "pricePerSquareMeter": 100000,
        "lat": 36.63350694,
        "lng": 138.18665194,
        "address": "若里１－１９－４７"
      },
      {
        "municipalityCode": "20202",
        "municipality": "松本市",
        "pricePerSquareMeter": 92900,
        "lat": 36.24083333,
        "lng": 137.9675,
        "address": "開智１－２－１１"
      },
      {
        "municipalityCode": "20202",
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        "lat": 36.24083333,
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        "address": "開智１－２－１１"
      },
      {
        "municipalityCode": "20201",
        "municipality": "長野市",
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        "lat": 36.65321806,
        "lng": 138.17896944,
        "address": "大字南長野字本郷２０７番１"
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      {
        "municipalityCode": "20201",
        "municipality": "長野市",
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        "lat": 36.65017611,
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      {
        "municipalityCode": "20201",
        "municipality": "長野市",
        "pricePerSquareMeter": 79500,
        "lat": 36.65017611,
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        "address": "北条町４５番５"
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      {
        "municipalityCode": "20202",
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        "lat": 36.23623278,
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        "address": "清水１－５－７"
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      {
        "municipalityCode": "20202",
        "municipality": "松本市",
        "pricePerSquareMeter": 78600,
        "lat": 36.23623278,
        "lng": 137.98107694,
        "address": "清水１－５－７"
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      {
        "municipalityCode": "20201",
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        "municipalityCode": "20201",
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        "lat": 36.66022611,
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        "municipalityCode": "20202",
        "municipality": "松本市",
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        "lat": 36.24808333,
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      {
        "municipalityCode": "20202",
        "municipality": "松本市",
        "pricePerSquareMeter": 76900,
        "lat": 36.24808333,
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        "address": "沢村１－１５－２３"
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      {
        "municipalityCode": "20202",
        "municipality": "松本市",
        "pricePerSquareMeter": 75800,
        "lat": 36.24127111,
        "lng": 137.96104806,
        "address": "宮渕１－４－２８－２１"
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      {
        "municipalityCode": "20202",
        "municipality": "松本市",
        "pricePerSquareMeter": 75700,
        "lat": 36.24127111,
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        "address": "宮渕１－４－２８－２１"
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        "municipalityCode": "20201",
        "municipality": "長野市",
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        "lat": 36.64538694,
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        "address": "大字高田字川端東沖７２５番７９"
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        "municipalityCode": "20201",
        "municipality": "長野市",
        "pricePerSquareMeter": 75500,
        "lat": 36.64538694,
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        "address": "大字高田字川端東沖７２５番７９"
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      {
        "municipalityCode": "20201",
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        "municipalityCode": "20201",
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        "address": "大字長野字上長野１２２１番４"
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      {
        "municipalityCode": "20201",
        "municipality": "長野市",
        "pricePerSquareMeter": 71400,
        "lat": 36.67252778,
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        "municipalityCode": "20201",
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        "municipalityCode": "20202",
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      {
        "municipalityCode": "20202",
        "municipality": "松本市",
        "pricePerSquareMeter": 69300,
        "lat": 36.22686389,
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        "address": "渚４－６－１２－１"
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    "percentiles": {
      "p25": 19300,
      "p50": 30450,
      "p75": 50700
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  },
  "transactions": {
    "histogram": [
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        "label": "0-1000万円",
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      {
        "label": "1000万-2000万円",
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      {
        "label": "2000万-3000万円",
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        "max": 30000000,
        "count": 571
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      {
        "label": "3000万-5000万円",
        "min": 30000000,
        "max": 50000000,
        "count": 480
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      {
        "label": "5000万-1億円",
        "min": 50000000,
        "max": 100000000,
        "count": 196
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      {
        "label": "1億円以上",
        "min": 100000000,
        "max": null,
        "count": 92
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    ],
    "municipalitySummary": [
      {
        "municipalityCode": "20321",
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        "average": 56128469,
        "count": 320,
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      {
        "municipalityCode": "20485",
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        "municipalityCode": "20201",
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        "municipalityCode": "20202",
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        "municipalityCode": "20215",
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      {
        "municipalityCode": "20349",
        "municipality": "小県郡青木村",
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        "average": 9259091,
        "count": 11,
        "lat": null,
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      {
        "municipalityCode": "20541",
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        "average": 12552174,
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        "lat": null,
        "lng": null
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      {
        "municipalityCode": "20450",
        "municipality": "東筑摩郡山形村",
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        "average": 15380000,
        "count": 16,
        "lat": null,
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      {
        "municipalityCode": "20206",
        "municipality": "諏訪市",
        "median": 10000000,
        "average": 15998803,
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        "municipalityCode": "20207",
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        "average": 25003733,
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        "lat": null,
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      {
        "municipalityCode": "20220",
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        "municipalityCode": "20218",
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        "median": 9500000,
        "average": 13735804,
        "count": 143,
        "lat": null,
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        "municipalityCode": "20204",
        "municipality": "岡谷市",
        "median": 8950000,
        "average": 16074057,
        "count": 106,
        "lat": null,
        "lng": null
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      {
        "municipalityCode": "20305",
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        "median": 8500000,
        "average": 11868065,
        "count": 31,
        "lat": null,
        "lng": null
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      {
        "municipalityCode": "20211",
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        "average": 16965488,
        "count": 82,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "20363",
        "municipality": "諏訪郡原村",
        "median": 8200000,
        "average": 9964375,
        "count": 48,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "20203",
        "municipality": "上田市",
        "median": 8000000,
        "average": 15584920,
        "count": 361,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "20323",
        "municipality": "北佐久郡御代田町",
        "median": 8000000,
        "average": 14228540,
        "count": 113,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "20361",
        "municipality": "諏訪郡下諏訪町",
        "median": 7700000,
        "average": 14276923,
        "count": 52,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "20217",
        "municipality": "佐久市",
        "median": 7450000,
        "average": 12545794,
        "count": 286,
        "lat": null,
        "lng": null
      }
    ],
    "sampleCount": 5285,
    "percentiles": {
      "p25": 3000000,
      "p50": 8900000,
      "p75": 20000000
    }
  },
  "populationTrend": [
    {
      "year": 2020,
      "value": 2048011,
      "sourceId": "estat-population"
    }
  ],
  "hazardRisk": {
    "score": null,
    "level": "要地域確認",
    "summary": "長野県の災害リスクは住所、地形、自治体ハザードマップで判定が変わります。Phase 1では国土数値情報の公式入口を確認し、重い災害GeoJSONの全面同梱は行っていません。",
    "sourceId": "ksj-hazard",
    "missingReason": "国土数値情報の災害データは住所単位の確認が必要なため、県別の単一スコアには集約していません。",
    "indicators": [
      {
        "label": "住所単位確認",
        "value": "自治体ハザードマップ必須",
        "sourceId": "ksj-hazard"
      },
      {
        "label": "Phase 1方針",
        "value": "巨大GeoJSON同梱なし",
        "sourceId": "ksj-hazard"
      }
    ]
  },
  "sources": [
    {
      "id": "reinfolib-xit001",
      "name": "不動産情報ライブラリ XIT001",
      "url": "https://www.reinfolib.mlit.go.jp/help/apiManual/xit001/",
      "retrievedAt": "2026-04-29T20:54:55.364Z",
      "period": "2024",
      "notes": "不動産取引価格情報を都道府県別・四半期別に取得し、取引価格を集計しています。"
    },
    {
      "id": "reinfolib-xct001",
      "name": "不動産情報ライブラリ XCT001",
      "url": "https://www.reinfolib.mlit.go.jp/help/apiManual/xct001/",
      "retrievedAt": "2026-04-29T20:54:55.364Z",
      "period": "2026",
      "notes": "地価公示の住宅地データを取得し、1㎡当たり価格を集計しています。"
    },
    {
      "id": "estat-population",
      "name": "e-Stat 国勢調査 人口",
      "url": "https://www.e-stat.go.jp/api/api-info/e-stat-manual3-0",
      "retrievedAt": "2026-04-29T20:54:55.364Z",
      "period": "2020",
      "notes": "getStatsList/getMetaInfoで統計表と次元を確認し、getStatsDataで都道府県別総人口を取得しています。"
    },
    {
      "id": "ksj-hazard",
      "name": "国土数値情報",
      "url": "https://nlftp.mlit.go.jp/ksj/",
      "retrievedAt": "2026-04-29T20:54:55.364Z",
      "period": "dataset-specific",
      "notes": "Phase 1では巨大GeoJSONを同梱せず、公式災害・地理空間データの確認導線と地域確認注意を掲載しています。"
    },
    {
      "id": "gsi-tiles",
      "name": "国土地理院 地理院タイル",
      "url": "https://maps.gsi.go.jp/development/",
      "retrievedAt": "2026-04-29T20:54:55.364Z",
      "period": "current",
      "notes": "MapLibre GL JSの背景地図として標準地図タイルを利用します。"
    }
  ],
  "quality": {
    "missingReasons": [
      "2020年国勢調査の都道府県別総人口を掲載。5年増減率は同一表内で算出できる過去年が未確認のため未掲載です。",
      "国土数値情報の災害データは住所単位の確認が必要なため、県別の単一スコアには集約していません。"
    ],
    "warnings": [
      "取引価格は2024年の不動産取引価格情報を集計しており、個別物件の査定額ではありません。",
      "地価公示は住宅地division=00の1㎡当たり価格を集計しています。",
      "災害リスクは住所単位で変わるため、自治体ハザードマップで必ず確認してください。"
    ]
  },
  "ranking": {
    "landPriceRank": 35,
    "transactionRank": 19,
    "populationRank": 16
  }
}