{
  "version": "2026-04-30-real-data-v1",
  "generatedAt": "2026-04-29T20:54:55.364Z",
  "prefecture": {
    "code": "35",
    "slug": "yamaguchi",
    "name": "山口県",
    "region": "中国",
    "center": {
      "lat": 34.18583,
      "lng": 131.47139,
      "zoom": 7
    }
  },
  "metrics": {
    "transactionPrice": {
      "median": 6600000,
      "average": 15042818,
      "count": 3264,
      "unit": "円",
      "period": "2024",
      "sourceId": "reinfolib-xit001",
      "missingReason": null
    },
    "landPrice": {
      "median": 32950,
      "average": 35971,
      "count": 372,
      "unit": "円/m²",
      "period": "2026",
      "sourceId": "reinfolib-xct001",
      "missingReason": null
    },
    "population": {
      "latest": 1342059,
      "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": "山口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": "35321",
        "municipality": "和木町",
        "median": 79700,
        "average": 71867,
        "count": 6,
        "lat": 34.202354,
        "lng": 132.219938
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "median": 44950,
        "average": 46096,
        "count": 48,
        "lat": 34.124617,
        "lng": 132.184186
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "median": 39150,
        "average": 40583,
        "count": 102,
        "lat": 33.999237,
        "lng": 130.947758
      },
      {
        "municipalityCode": "35207",
        "municipality": "下松市",
        "median": 36600,
        "average": 40605,
        "count": 22,
        "lat": 34.026418,
        "lng": 131.876092
      },
      {
        "municipalityCode": "35203",
        "municipality": "山口市",
        "median": 35000,
        "average": 39345,
        "count": 22,
        "lat": 34.116355,
        "lng": 131.435978
      },
      {
        "municipalityCode": "35215",
        "municipality": "周南市",
        "median": 34500,
        "average": 36153,
        "count": 52,
        "lat": 34.064734,
        "lng": 131.801131
      },
      {
        "municipalityCode": "35206",
        "municipality": "防府市",
        "median": 29500,
        "average": 27881,
        "count": 36,
        "lat": 34.049452,
        "lng": 131.562624
      },
      {
        "municipalityCode": "35202",
        "municipality": "宇部市",
        "median": 29350,
        "average": 27192,
        "count": 12,
        "lat": 33.974239,
        "lng": 131.258888
      },
      {
        "municipalityCode": "35212",
        "municipality": "柳井市",
        "median": 29150,
        "average": 29100,
        "count": 6,
        "lat": 33.974367,
        "lng": 132.102588
      },
      {
        "municipalityCode": "35210",
        "municipality": "光市",
        "median": 28850,
        "average": 29267,
        "count": 24,
        "lat": 33.967097,
        "lng": 131.953484
      },
      {
        "municipalityCode": "35204",
        "municipality": "萩市",
        "median": 27250,
        "average": 23850,
        "count": 6,
        "lat": 34.407256,
        "lng": 131.409879
      },
      {
        "municipalityCode": "35216",
        "municipality": "山陽小野田市",
        "median": 23400,
        "average": 25025,
        "count": 8,
        "lat": 34.003939,
        "lng": 131.152693
      },
      {
        "municipalityCode": "35344",
        "municipality": "平生町",
        "median": 19350,
        "average": 19350,
        "count": 4,
        "lat": 33.945315,
        "lng": 132.084863
      },
      {
        "municipalityCode": "35211",
        "municipality": "長門市",
        "median": 19300,
        "average": 16638,
        "count": 8,
        "lat": 34.371925,
        "lng": 131.207029
      },
      {
        "municipalityCode": "35343",
        "municipality": "田布施町",
        "median": 18100,
        "average": 18100,
        "count": 4,
        "lat": 33.948227,
        "lng": 132.052028
      },
      {
        "municipalityCode": "35305",
        "municipality": "周防大島町",
        "median": 12650,
        "average": 12650,
        "count": 4,
        "lat": 33.905461,
        "lng": 132.198079
      },
      {
        "municipalityCode": "35213",
        "municipality": "美祢市",
        "median": 10350,
        "average": 9386,
        "count": 8,
        "lat": 34.178823,
        "lng": 131.229011
      }
    ],
    "points": [
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "pricePerSquareMeter": 94900,
        "lat": 34.1644725,
        "lng": 132.213745,
        "address": "今津町４－１４－３０"
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "pricePerSquareMeter": 94900,
        "lat": 34.1644725,
        "lng": 132.213745,
        "address": "今津町４－１４－３０"
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "pricePerSquareMeter": 91600,
        "lat": 34.00649528,
        "lng": 130.93138806,
        "address": "伊倉新町３－３－１７"
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "pricePerSquareMeter": 91200,
        "lat": 34.00649528,
        "lng": 130.93138806,
        "address": "伊倉新町３－３－１７"
      },
      {
        "municipalityCode": "35215",
        "municipality": "周南市",
        "pricePerSquareMeter": 85500,
        "lat": 34.05782444,
        "lng": 131.81003639,
        "address": "児玉町３丁目１７番"
      },
      {
        "municipalityCode": "35215",
        "municipality": "周南市",
        "pricePerSquareMeter": 85200,
        "lat": 34.05782444,
        "lng": 131.81003639,
        "address": "児玉町３丁目１７番"
      },
      {
        "municipalityCode": "35321",
        "municipality": "和木町",
        "pricePerSquareMeter": 79900,
        "lat": 34.20392833,
        "lng": 132.22663056,
        "address": "和木４－１－１３"
      },
      {
        "municipalityCode": "35321",
        "municipality": "和木町",
        "pricePerSquareMeter": 79900,
        "lat": 34.20392833,
        "lng": 132.22663056,
        "address": "和木４－１－１３"
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "pricePerSquareMeter": 79700,
        "lat": 33.99650417,
        "lng": 130.9872975,
        "address": "長府惣社町２－７"
      },
      {
        "municipalityCode": "35321",
        "municipality": "和木町",
        "pricePerSquareMeter": 79700,
        "lat": 34.20515444,
        "lng": 132.21916028,
        "address": "和木１－８－２６－４"
      },
      {
        "municipalityCode": "35321",
        "municipality": "和木町",
        "pricePerSquareMeter": 79700,
        "lat": 34.20515444,
        "lng": 132.21916028,
        "address": "和木１－８－２６－４"
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "pricePerSquareMeter": 79400,
        "lat": 33.99650417,
        "lng": 130.9872975,
        "address": "長府惣社町２－７"
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "pricePerSquareMeter": 77600,
        "lat": 34.00836806,
        "lng": 130.95880694,
        "address": "秋根上町３－２－１４"
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "pricePerSquareMeter": 76900,
        "lat": 34.00836806,
        "lng": 130.95880694,
        "address": "秋根上町３－２－１４"
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "pricePerSquareMeter": 75300,
        "lat": 34.13922222,
        "lng": 132.20811111,
        "address": "尾津町２－１６－２５"
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "pricePerSquareMeter": 75300,
        "lat": 34.13922222,
        "lng": 132.20811111,
        "address": "尾津町２－１６－２５"
      },
      {
        "municipalityCode": "35215",
        "municipality": "周南市",
        "pricePerSquareMeter": 74200,
        "lat": 34.07226694,
        "lng": 131.77339694,
        "address": "政所３－２－８"
      },
      {
        "municipalityCode": "35215",
        "municipality": "周南市",
        "pricePerSquareMeter": 74200,
        "lat": 34.07226694,
        "lng": 131.77339694,
        "address": "政所３－２－８"
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "pricePerSquareMeter": 74000,
        "lat": 34.01289889,
        "lng": 130.94916611,
        "address": "秋根新町５－１７"
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "pricePerSquareMeter": 74000,
        "lat": 34.01289889,
        "lng": 130.94916611,
        "address": "秋根新町５－１７"
      },
      {
        "municipalityCode": "35203",
        "municipality": "山口市",
        "pricePerSquareMeter": 73800,
        "lat": 34.17763889,
        "lng": 131.47033333,
        "address": "白石１－１１－９"
      },
      {
        "municipalityCode": "35203",
        "municipality": "山口市",
        "pricePerSquareMeter": 73800,
        "lat": 34.17763889,
        "lng": 131.47033333,
        "address": "白石１－１１－９"
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "pricePerSquareMeter": 71700,
        "lat": 34.16629778,
        "lng": 132.19105611,
        "address": "錦見１－１３－１１－２６"
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "pricePerSquareMeter": 71700,
        "lat": 34.16629778,
        "lng": 132.19105611,
        "address": "錦見１－１３－１１－２６"
      },
      {
        "municipalityCode": "35207",
        "municipality": "下松市",
        "pricePerSquareMeter": 70600,
        "lat": 34.0259625,
        "lng": 131.86324056,
        "address": "美里町２－１０－１６"
      },
      {
        "municipalityCode": "35207",
        "municipality": "下松市",
        "pricePerSquareMeter": 70600,
        "lat": 34.0259625,
        "lng": 131.86324056,
        "address": "美里町２－１０－１６"
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "pricePerSquareMeter": 70600,
        "lat": 34.13059611,
        "lng": 132.19858667,
        "address": "南岩国町３－２３－５６"
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "pricePerSquareMeter": 70500,
        "lat": 34.13059611,
        "lng": 132.19858667,
        "address": "南岩国町３－２３－５６"
      },
      {
        "municipalityCode": "35215",
        "municipality": "周南市",
        "pricePerSquareMeter": 63700,
        "lat": 34.056875,
        "lng": 131.82230278,
        "address": "楠木１－９－２２"
      },
      {
        "municipalityCode": "35215",
        "municipality": "周南市",
        "pricePerSquareMeter": 63700,
        "lat": 34.056875,
        "lng": 131.82230278,
        "address": "楠木１－９－２２"
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "pricePerSquareMeter": 63600,
        "lat": 34.1515,
        "lng": 132.21886111,
        "address": "中津町３－８－２９"
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "pricePerSquareMeter": 63600,
        "lat": 34.1515,
        "lng": 132.21886111,
        "address": "中津町３－８－２９"
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "pricePerSquareMeter": 62200,
        "lat": 34.17420306,
        "lng": 132.23156,
        "address": "昭和町２－１５－１９"
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "pricePerSquareMeter": 62200,
        "lat": 34.17420306,
        "lng": 132.23156,
        "address": "昭和町２－１５－１９"
      },
      {
        "municipalityCode": "35203",
        "municipality": "山口市",
        "pricePerSquareMeter": 61600,
        "lat": 34.09768139,
        "lng": 131.39148444,
        "address": "小郡下郷字薮先三２２１９番１３"
      },
      {
        "municipalityCode": "35203",
        "municipality": "山口市",
        "pricePerSquareMeter": 61500,
        "lat": 34.09768139,
        "lng": 131.39148444,
        "address": "小郡下郷字薮先三２２１９番１３"
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "pricePerSquareMeter": 61000,
        "lat": 33.98708333,
        "lng": 130.92705556,
        "address": "山の田中央町５－４"
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "pricePerSquareMeter": 60800,
        "lat": 33.98708333,
        "lng": 130.92705556,
        "address": "山の田中央町５－４"
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "pricePerSquareMeter": 59800,
        "lat": 34.00374,
        "lng": 130.94690111,
        "address": "一の宮町１－６－６"
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "pricePerSquareMeter": 59700,
        "lat": 34.00374,
        "lng": 130.94690111,
        "address": "一の宮町１－６－６"
      }
    ],
    "percentiles": {
      "p25": 21200,
      "p50": 32950,
      "p75": 48700
    }
  },
  "transactions": {
    "histogram": [
      {
        "label": "0-1000万円",
        "min": 0,
        "max": 10000000,
        "count": 2007
      },
      {
        "label": "1000万-2000万円",
        "min": 10000000,
        "max": 20000000,
        "count": 593
      },
      {
        "label": "2000万-3000万円",
        "min": 20000000,
        "max": 30000000,
        "count": 293
      },
      {
        "label": "3000万-5000万円",
        "min": 30000000,
        "max": 50000000,
        "count": 222
      },
      {
        "label": "5000万-1億円",
        "min": 50000000,
        "max": 100000000,
        "count": 99
      },
      {
        "label": "1億円以上",
        "min": 100000000,
        "max": null,
        "count": 50
      }
    ],
    "municipalitySummary": [
      {
        "municipalityCode": "35207",
        "municipality": "下松市",
        "median": 13000000,
        "average": 24373703,
        "count": 158,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35215",
        "municipality": "周南市",
        "median": 11000000,
        "average": 16231538,
        "count": 273,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35321",
        "municipality": "玖珂郡和木町",
        "median": 11000000,
        "average": 11581429,
        "count": 14,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35201",
        "municipality": "下関市",
        "median": 9600000,
        "average": 17289786,
        "count": 601,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35203",
        "municipality": "山口市",
        "median": 8950000,
        "average": 19163244,
        "count": 528,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35202",
        "municipality": "宇部市",
        "median": 7400000,
        "average": 19267083,
        "count": 357,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35206",
        "municipality": "防府市",
        "median": 7000000,
        "average": 13901025,
        "count": 280,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35210",
        "municipality": "光市",
        "median": 6400000,
        "average": 11338514,
        "count": 107,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35208",
        "municipality": "岩国市",
        "median": 5000000,
        "average": 12558176,
        "count": 346,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35216",
        "municipality": "山陽小野田市",
        "median": 4000000,
        "average": 13613898,
        "count": 127,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35341",
        "municipality": "熊毛郡上関町",
        "median": 4000000,
        "average": 4000000,
        "count": 1,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35211",
        "municipality": "長門市",
        "median": 2100000,
        "average": 5694172,
        "count": 87,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35343",
        "municipality": "熊毛郡田布施町",
        "median": 2100000,
        "average": 6567000,
        "count": 30,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35344",
        "municipality": "熊毛郡平生町",
        "median": 2000000,
        "average": 3917968,
        "count": 31,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35212",
        "municipality": "柳井市",
        "median": 1850000,
        "average": 5271431,
        "count": 72,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35204",
        "municipality": "萩市",
        "median": 1000000,
        "average": 4307512,
        "count": 124,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35502",
        "municipality": "阿武郡阿武町",
        "median": 950000,
        "average": 1573000,
        "count": 10,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35305",
        "municipality": "大島郡周防大島町",
        "median": 900000,
        "average": 2466873,
        "count": 63,
        "lat": null,
        "lng": null
      },
      {
        "municipalityCode": "35213",
        "municipality": "美祢市",
        "median": 800000,
        "average": 3370545,
        "count": 55,
        "lat": null,
        "lng": null
      }
    ],
    "sampleCount": 3264,
    "percentiles": {
      "p25": 1600000,
      "p50": 6600000,
      "p75": 16000000
    }
  },
  "populationTrend": [
    {
      "year": 2020,
      "value": 1342059,
      "sourceId": "estat-population"
    }
  ],
  "hazardRisk": {
    "score": null,
    "level": "要地域確認",
    "summary": "山口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": 29,
    "transactionRank": 28,
    "populationRank": 27
  }
}