{
  "dataset": "prefecture-retirement-gap-2026",
  "source": "IKIGAI TOWN (Specialist Doctors, Inc.)",
  "url": "https://ikigai.town/ja/press/2026-04-22/",
  "license": "CC BY 4.0",
  "published": "2026-04-22",
  "methodology": "厚生年金月額（厚労省2024年度概況）＋老齢基礎年金満額69,308円 − (全国平均消費支出282,497円 × 都道府県別CPI ÷ 100) を月次赤字として算出し、30年累計。",
  "references": [
    "https://www.mhlw.go.jp/content/001617995.pdf",
    "https://www.stat.go.jp/data/kouri/kouzou/pdf/g_2024.pdf"
  ],
  "rows": [
    {
      "prefecture": "奈良県",
      "pension_kosei_monthly": 162292,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 231600,
      "cpi_regional_index": 98.1,
      "estimated_expense_monthly": 277130,
      "monthly_surplus": -45530,
      "shortfall_30y_total": 16390800,
      "resident_tax_surcharge_yearly": 500,
      "resident_tax_surcharge_name": "奈良県森林環境税",
      "rank_shortfall": 1
    },
    {
      "prefecture": "愛知県",
      "pension_kosei_monthly": 160766,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 230074,
      "cpi_regional_index": 98.1,
      "estimated_expense_monthly": 277130,
      "monthly_surplus": -47056,
      "shortfall_30y_total": 16940160,
      "resident_tax_surcharge_yearly": 500,
      "resident_tax_surcharge_name": "あいち森と緑づくり税",
      "rank_shortfall": 2
    },
    {
      "prefecture": "千葉県",
      "pension_kosei_monthly": 165103,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 234411,
      "cpi_regional_index": 101.2,
      "estimated_expense_monthly": 285887,
      "monthly_surplus": -51476,
      "shortfall_30y_total": 18531360,
      "resident_tax_surcharge_yearly": 0,
      "resident_tax_surcharge_name": "",
      "rank_shortfall": 3
    },
    {
      "prefecture": "兵庫県",
      "pension_kosei_monthly": 159086,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 228394,
      "cpi_regional_index": 99.2,
      "estimated_expense_monthly": 280237,
      "monthly_surplus": -51843,
      "shortfall_30y_total": 18663480,
      "resident_tax_surcharge_yearly": 800,
      "resident_tax_surcharge_name": "県民緑税",
      "rank_shortfall": 4
    },
    {
      "prefecture": "神奈川県",
      "pension_kosei_monthly": 170457,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 239765,
      "cpi_regional_index": 103.3,
      "estimated_expense_monthly": 291819,
      "monthly_surplus": -52054,
      "shortfall_30y_total": 18739440,
      "resident_tax_surcharge_yearly": 300,
      "resident_tax_surcharge_name": "水源環境保全税",
      "rank_shortfall": 5
    },
    {
      "prefecture": "埼玉県",
      "pension_kosei_monthly": 161752,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 231060,
      "cpi_regional_index": 100.3,
      "estimated_expense_monthly": 283344,
      "monthly_surplus": -52284,
      "shortfall_30y_total": 18822240,
      "resident_tax_surcharge_yearly": 0,
      "resident_tax_surcharge_name": "",
      "rank_shortfall": 6
    },
    {
      "prefecture": "茨城県",
      "pension_kosei_monthly": 152963,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 222271,
      "cpi_regional_index": 97.5,
      "estimated_expense_monthly": 275435,
      "monthly_surplus": -53164,
      "shortfall_30y_total": 19139040,
      "resident_tax_surcharge_yearly": 1000,
      "resident_tax_surcharge_name": "森林湖沼環境税",
      "rank_shortfall": 7
    },
    {
      "prefecture": "群馬県",
      "pension_kosei_monthly": 148666,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 217974,
      "cpi_regional_index": 96.2,
      "estimated_expense_monthly": 271762,
      "monthly_surplus": -53788,
      "shortfall_30y_total": 19363680,
      "resident_tax_surcharge_yearly": 700,
      "resident_tax_surcharge_name": "ぐんま緑の県民税",
      "rank_shortfall": 8
    },
    {
      "prefecture": "滋賀県",
      "pension_kosei_monthly": 154456,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 223764,
      "cpi_regional_index": 98.6,
      "estimated_expense_monthly": 278542,
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      "shortfall_30y_total": 19720080,
      "resident_tax_surcharge_yearly": 800,
      "resident_tax_surcharge_name": "琵琶湖森林づくり県民税",
      "rank_shortfall": 9
    },
    {
      "prefecture": "大阪府",
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      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 225580,
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      "shortfall_30y_total": 19778400,
      "resident_tax_surcharge_yearly": 300,
      "resident_tax_surcharge_name": "森林環境税",
      "rank_shortfall": 10
    },
    {
      "prefecture": "岐阜県",
      "pension_kosei_monthly": 149910,
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      "cpi_regional_index": 97.1,
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      "shortfall_30y_total": 19831320,
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      "resident_tax_surcharge_name": "清流の国ぎふ森林・環境税",
      "rank_shortfall": 11
    },
    {
      "prefecture": "静岡県",
      "pension_kosei_monthly": 151960,
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      "resident_tax_surcharge_name": "森づくり県民税",
      "rank_shortfall": 12
    },
    {
      "prefecture": "栃木県",
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      "resident_tax_surcharge_name": "とちぎの元気な森づくり県民税",
      "rank_shortfall": 13
    },
    {
      "prefecture": "三重県",
      "pension_kosei_monthly": 151949,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 221257,
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      "resident_tax_surcharge_yearly": 0,
      "resident_tax_surcharge_name": "",
      "rank_shortfall": 14
    },
    {
      "prefecture": "広島県",
      "pension_kosei_monthly": 150745,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 220053,
      "cpi_regional_index": 98.7,
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      "resident_tax_surcharge_name": "ひろしまの森づくり県民税",
      "rank_shortfall": 15
    },
    {
      "prefecture": "岡山県",
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      "estimated_expense_monthly": 276000,
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      "shortfall_30y_total": 21694680,
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      "resident_tax_surcharge_name": "おかやま森づくり県民税",
      "rank_shortfall": 16
    },
    {
      "prefecture": "東京都",
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      "resident_tax_surcharge_name": "",
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    },
    {
      "prefecture": "福岡県",
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      "resident_tax_surcharge_name": "森林環境税",
      "rank_shortfall": 18
    },
    {
      "prefecture": "山梨県",
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      "resident_tax_surcharge_name": "森林環境税",
      "rank_shortfall": 19
    },
    {
      "prefecture": "和歌山県",
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      "estimated_expense_monthly": 277412,
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      "resident_tax_surcharge_name": "紀の国森づくり税",
      "rank_shortfall": 20
    },
    {
      "prefecture": "長野県",
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      "pension_total_monthly": 213976,
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      "resident_tax_surcharge_name": "長野県森林づくり県民税",
      "rank_shortfall": 21
    },
    {
      "prefecture": "富山県",
      "pension_kosei_monthly": 144644,
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      "resident_tax_surcharge_name": "水と緑の森づくり税",
      "rank_shortfall": 22
    },
    {
      "prefecture": "山口県",
      "pension_kosei_monthly": 148166,
      "pension_kiso_full_monthly": 69308,
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      "resident_tax_surcharge_name": "やまぐち森林づくり県民税",
      "rank_shortfall": 23
    },
    {
      "prefecture": "京都府",
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      "resident_tax_surcharge_name": "豊かな森を育てる府民税",
      "rank_shortfall": 24
    },
    {
      "prefecture": "香川県",
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      "resident_tax_surcharge_name": "",
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    },
    {
      "prefecture": "新潟県",
      "pension_kosei_monthly": 138683,
      "pension_kiso_full_monthly": 69308,
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    },
    {
      "prefecture": "愛媛県",
      "pension_kosei_monthly": 140301,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 209609,
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      "resident_tax_surcharge_name": "森林環境税",
      "rank_shortfall": 27
    },
    {
      "prefecture": "大分県",
      "pension_kosei_monthly": 136507,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 205815,
      "cpi_regional_index": 97.4,
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      "resident_tax_surcharge_name": "森林環境税",
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    },
    {
      "prefecture": "鹿児島県",
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      "resident_tax_surcharge_name": "森林環境税水と緑の森づくり税",
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    },
    {
      "prefecture": "宮城県",
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      "resident_tax_surcharge_name": "みやぎ環境税",
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    },
    {
      "prefecture": "石川県",
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      "resident_tax_surcharge_name": "いしかわ森林環境税",
      "rank_shortfall": 31
    },
    {
      "prefecture": "福井県",
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      "pension_total_monthly": 210095,
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      "resident_tax_surcharge_yearly": 0,
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    },
    {
      "prefecture": "佐賀県",
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      "resident_tax_surcharge_name": "森林環境税",
      "rank_shortfall": 33
    },
    {
      "prefecture": "福島県",
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      "estimated_expense_monthly": 279107,
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      "resident_tax_surcharge_name": "森林環境税",
      "rank_shortfall": 34
    },
    {
      "prefecture": "長崎県",
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      "resident_tax_surcharge_name": "ながさき森林環境税",
      "rank_shortfall": 35
    },
    {
      "prefecture": "宮崎県",
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      "resident_tax_surcharge_name": "森林環境税",
      "rank_shortfall": 36
    },
    {
      "prefecture": "鳥取県",
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      "resident_tax_surcharge_name": "森林環境保全税",
      "rank_shortfall": 37
    },
    {
      "prefecture": "徳島県",
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      "pension_kiso_full_monthly": 69308,
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      "shortfall_30y_total": 27749160,
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      "resident_tax_surcharge_name": "とくしま森林づくり県民税",
      "rank_shortfall": 38
    },
    {
      "prefecture": "北海道",
      "pension_kosei_monthly": 141069,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 210377,
      "cpi_regional_index": 101.9,
      "estimated_expense_monthly": 287864,
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      "shortfall_30y_total": 27895320,
      "resident_tax_surcharge_yearly": 0,
      "resident_tax_surcharge_name": "",
      "rank_shortfall": 39
    },
    {
      "prefecture": "熊本県",
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      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 202048,
      "cpi_regional_index": 99.4,
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      "shortfall_30y_total": 28351440,
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      "resident_tax_surcharge_name": "水とみどりの森づくり税",
      "rank_shortfall": 40
    },
    {
      "prefecture": "島根県",
      "pension_kosei_monthly": 133918,
      "pension_kiso_full_monthly": 69308,
      "pension_total_monthly": 203226,
      "cpi_regional_index": 100,
      "estimated_expense_monthly": 282497,
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      "shortfall_30y_total": 28537560,
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      "resident_tax_surcharge_name": "水と緑の森づくり税",
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      "resident_tax_surcharge_name": "",
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      "estimated_expense_monthly": 282497,
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      "shortfall_30y_total": 29155320,
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      "resident_tax_surcharge_name": "森林環境税",
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      "prefecture": "秋田県",
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      "resident_tax_surcharge_name": "秋田県水と緑の森づくり税",
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    {
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      "cpi_regional_index": 100.2,
      "estimated_expense_monthly": 283062,
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      "resident_tax_surcharge_yearly": 0,
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    {
      "prefecture": "山形県",
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      "pension_kiso_full_monthly": 69308,
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      "estimated_expense_monthly": 286452,
      "monthly_surplus": -85975,
      "shortfall_30y_total": 30951000,
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      "resident_tax_surcharge_name": "やまがた緑環境税",
      "rank_shortfall": 47
    }
  ]
}