{
  "metadata": {
    "title": "Empirical Contiguous Distribution of the Five-Tier Class System in America",
    "theoretical_source": "Lois Tyson, Critical Theory Today: A User-Friendly Guide (Chapter 3: Marxist Criticism)",
    "data_compilation_year": "2024-2026",
    "total_us_population_benchmark": 336000000,
    "total_us_households_benchmark": 131200000,
    "national_median_household_income": 83730,
    "methodological_note": "Reconciled contiguous income spectrum: Tier 1 ($0-$31.2k, below poverty line & homeless), Tier 2 ($31.2k-$55.8k, working poor/precariat), Tier 3 ($55.8k-$175.7k, middle class), Tier 4 ($175.7k-$650k, upper class), Tier 5 ($650k+, aristocracy). Zero gaps."
  },
  "tiers": [
    {
      "tier_rank": 5,
      "tier_name": "\"Aristocracy\"",
      "sociological_label": "The Extremely Wealthy / Capitalist Elite",
      "income_bracket": "$650,000+ annually (Top 1%); Average >$3,300,000 (Top 0.1%)",
      "median_net_worth": ">$13,500,000 (Top 1%); >$40,000,000 (Top 0.1%)",
      "population_estimate": 3300000,
      "household_estimate": 1312000,
      "population_share_percent": 1.0,
      "material_markers": "Corporate ownership, dynastic trusts, equity capital, private airplanes, yachts, multiple luxury mansions",
      "source_agency": "Federal Reserve & Internal Revenue Service (IRS)",
      "data_reports": [
        "Federal Reserve Distributional Financial Accounts (DFA), Wealth by Wealth Percentile Group",
        "IRS Statistics of Income (SOI) Bulletin: Individual Income Tax Returns by Percentile"
      ],
      "citation_url": "https://www.federalreserve.gov/releases/efa/efa-distributional-financial-accounts.htm"
    },
    {
      "tier_rank": 4,
      "tier_name": "Upper Class",
      "sociological_label": "The Well-to-Do / Senior Professional Class",
      "income_bracket": "$175,700 to $650,000 annually (80th to 99th percentile)",
      "median_net_worth": "$1,600,000 to $4,500,000",
      "population_estimate": 62000000,
      "household_estimate": 24900000,
      "population_share_percent": 18.5,
      "material_markers": "Expensive suburban homes, 2+ upscale vehicles, private university education, luxury vacations, investment portfolios",
      "source_agency": "U.S. Census Bureau & Federal Reserve",
      "data_reports": [
        "U.S. Census Bureau Current Population Survey (CPS) ASEC Table H-1 (Fourth Quintile Upper Limit to 99th percentile)",
        "Federal Reserve Survey of Consumer Finances (SCF)"
      ],
      "citation_url": "https://www.census.gov/data/tables/time-series/demo/income-poverty/historical-income-households.html"
    },
    {
      "tier_rank": 3,
      "tier_name": "Middle Class",
      "sociological_label": "The Financially Established / Contradictory Buffer Class",
      "income_bracket": "$55,800 to $175,700 annually (2/3 to 2x national median)",
      "median_net_worth": "$150,000 to $350,000 (predominantly residential home equity)",
      "population_estimate": 170000000,
      "household_estimate": 67500000,
      "population_share_percent": 51.0,
      "material_markers": "Own single-family home and cars, afford state college tuition, institutional health insurance, pension/401(k), heavy tax burden",
      "source_agency": "U.S. Census Bureau & Pew Research Center",
      "data_reports": [
        "U.S. Census Bureau: Income in the United States (2024), Real Median Household Income ($83,730)",
        "Pew Research Center: The American Middle Class Is Stable in Size"
      ],
      "citation_url": "https://www.census.gov/newsroom/press-releases/2024/income-poverty-health-insurance.html"
    },
    {
      "tier_rank": 2,
      "tier_name": "Lower Class",
      "sociological_label": "The Working Poor / Precariat / Near-Poor",
      "income_bracket": "$31,200 to $55,800 annually (Poverty Line to 2/3 National Median)",
      "median_net_worth": "<$25,000 (minimal liquid savings, fragile home/rental equity)",
      "population_estimate": 63000000,
      "household_estimate": 24500000,
      "population_share_percent": 18.8,
      "material_markers": "Wage labor/service work, living paycheck to paycheck, struggling to support families, living in constant fear of homelessness",
      "source_agency": "U.S. Census Bureau & Bureau of Labor Statistics (BLS)",
      "data_reports": [
        "U.S. Census Bureau CPS ASEC Table H-1 (Second Quintile: $34,510 to $65,100)",
        "BLS Consumer Expenditure Surveys: Housing and Emergency Insecurity"
      ],
      "citation_url": "https://www.census.gov/data/tables/time-series/demo/income-poverty/historical-income-households.html"
    },
    {
      "tier_rank": 1,
      "tier_name": "Underclass",
      "sociological_label": "The Sub-Poverty & Destitute (Includes Unhoused)",
      "income_bracket": "$0 to $31,200 annually (Below Federal Poverty Threshold)",
      "median_net_worth": "$0 (often net negative debt)",
      "population_estimate": 36700000,
      "household_estimate": 13000000,
      "population_share_percent": 10.7,
      "material_markers": "Cardboard boxes, tents, emergency shelters, severe economic privation, food insecurity; includes 770k+ unhoused and ~18M in deep poverty",
      "source_agency": "U.S. Census Bureau & HUD",
      "data_reports": [
        "U.S. Census Bureau: Poverty in the United States (2024) (10.6% OPM, 12.9% SPM)",
        "HUD 2024 Annual Homeless Assessment Report (AHAR) to Congress, Part 1"
      ],
      "citation_url": "https://www.census.gov/topics/income-poverty/poverty.html"
    }
  ]
}