← GALLERY EXHIBITS
Five Equal Groups, Five Unequal Shares
GALLERY

Five Equal Groups, Five Unequal Shares

Households cut into five equal groups by income; the share of all income each group receives. The top fifth holds about 52%, the bottom fifth about 3%. The dotted line is what equal would look like.

Image credit

Chart: Urbanicity (STRATIFICATION-V1), from U.S. Census Bureau / Federal Reserve / Pew Research Center tables, 2023 data, rounded - the source line is printed on the chart.

Read the evidence

  • SOURCE IT: who cut the country into fifths, by what income, counted how?
  • LOOK: measure the top bar against the dotted line. How many equal shares does it hold?
  • INFER: the counterclaim says every ruler shows this shape. Does the CBO's after-tax number weaken that or confirm it?
Parts & Labels
The Fifths
20% of households each - equal by count
The Ranges
under $33k; $33-64k; $64-101k; $101-165k; $165k and up
The Shares
3.0 / 8.2 / 14.1 / 22.6 / 52.1
The Dotted Line
20%: the share if income were spread flat

Why It Existed

The hypothesis's cleanest ruler: no bracket choices, no definition of 'middle' - just cut the line in five. And still a choice: household or person? before tax or after? The Census says before, cash only.

Daily Use

The quintile table is the standard measure of inequality in every country's statistics. The Gini index compresses it to one number: 0.48 for the United States in 2023, up from about 0.40 in 1980; most of Western Europe sits between 0.27 and 0.35.
Comparison Panel
1980
top fifth about 44%, Gini about 0.40
2023
top fifth about 52%, Gini about 0.48
After Taxes And Transfers (CBO)
top fifth nearer 48% - the ruler moves the number by four points
Interesting Facts
  • The bottom fifth's 3% is before benefits; count food stamps, housing aid and Medicaid and it roughly doubles.
  • The top 5% - one household in twenty - receives about 23% of all income, nearly as much as the bottom three-fifths together.

🗺 POCKET MAP
🗺 Museum Map
Galleries
IFire and the Forest IIThe First Surplus IIIWater and Power IVThe Domesticated Animal VThe First Village VIThe Metal That Mattered VIIThe Grain Empire VIIIRoads and Rivers IXThe Silk Corridor XThe Monsoon Bargain XIWhy Rome Thinned XIIThe Classical City XIIIThe Maize Bargain XIVTerrace and Milpa XVThe City in the Lake XVIThe Classic Maya Question XVIIReading the Sky XVIIIA Hemisphere Without Horses XIXThe Heavy Plough XXThe Black Death XXIThe Caravan World XXIIThe Rice Revolution XXIIIWood and the Wall XXIVThe Little Ice Age XXVThe Columbian Exchange XXVIThe Sugar Island XXVIIThe Silver Mountain XXVIIIThe Wind That Made Empires XXIXFur, Fish and Frontier XXXThe First Global City XXXIThe Walking City XXXIICoal and the Clock XXXIIIGoing Up Rural Businesses XXXIVThe Cooled Room The Gerrymander The Income Pyramid ◄ YOU ARE HERE XXXVThe New Mills XXXVIThe Company and the Charter XXXVIIThe Meeting Ground XXXVIIIThe Company Town XXXIXThe Town and the Common XLThe Invisible Arrival XLIThe Consumer Revolution XLIIThe Argument in Print XLIIIWho Was the Revolution For? XLIVThe Machine of Compromise XLVThe Grid Goes West XLVIThe Port City XLVIIThe War Itself XLVIIIThe First Party Fight XLIXRemoval LThe Factory Girls LIThe House Divided LIIReconstruction and Its Undoing LIIIThe Chosen Nation LIVThe Tenement and the Terrace LVThe Immigrant Ledger LVIThe Machine and the Ward LVIIWhy Buildings Rise LVIIIThe Reservation and the Allotment LIXThe Federal Blueprint LXThe Arsenal LXIThe Subsidised Suburb LXIIThe Second Great Migration LXIIIThe Movement in the Street LXIVThe Bomb LXVThe Factory Closes LXVIThe Return Downtown LXVIIThe Sunbelt Bargain LXVIIIThe Worked Continent LXIXThe Hero and the Record LXXThe Reform Photograph LXXIThe Great Upheaval LXXIIThe Cotton Engine LXXIIIThe Corps of Discovery LXXIVThe Republican Experiment LXXVWho Counts? LXXVIThe Canal and the Rail LXXVIIThe Edsel LXXVIIIThe Transcontinental LXXIXThe Crash and the Line LXXXThe Census LXXXIThe Tower Again LXXXIIThe Screen and the Square LXXXIIIThe Literary Digest Poll LXXXIVUrban Renewal LXXXVThe Hardening Line LXXXVIThe Population Bomb LXXXVIINew Coke LXXXVIIIGalloping Gertie LXXXIXThe Question XCThe Index XCIThe Map XCIIThe Poverty Line XCIIIThe Normal XCIVThe Hawthorne Works XCVProhibition XCVIMoving to Opportunity XCVIIThe Obedience Studies XCVIIIThe Minimum Wage Fight XCIXAfter the Towers CThe Sword Rack at the Door CIThe First Light CIIThe Forge of Stars CIIIThe Rocky Ledger CIVThe Goldilocks Band CVThe Moon's Receipt CVIThe Deep Clock CVIIThe Living Spark CVIIIThe Oxygen Revolution CIXThe Drifting Map CXThe Great Dyings CXIThe Mammal's Wager CXIIThe Grasslands Bargain CXIIIThe Fire Keeper CXIVThe Language Leap CXVThe Painted Cave CXVIThe Long Migration CXVIIThe Dog at the Fire CXVIIIThe Ice Corridor CXIXThe Seed Contract CXXThe Village Ledger CXXIThe Writing Debt CXXIIThe City Threshold CXXIIIThe Metal and the Market CXXIVThe Plague Network CXXVThe Ocean Bridge CXXVIThe Silver Circuit CXXVIIThe Machine Threshold CXXVIIIThe Energy Bonanza CXXIXThe Population Curve CXXXThe Telegraph World CXXXIThe Great Acceleration CXXXIIThe Carbon Ledger CXXXIIIThe Information Threshold CXXXIVThe Genome Drawer CXXXVThe Anthropocene Question CXXXVIThe Next Threshold CXXXVIIThe Town Meeting CXXXVIIIThe Common and the Fence CXXXIXThe Sheriff and the Jury CXLThe School Board CXLIThe Charter CXLIIThe Petition CXLIIIThe Property Line CXLIVThe Ballot Box CXLVThe Ward Machine CXLVIThe Suffrage March CXLVIIThe Poll Tax Receipt CXLVIIIThe Recount CXLIXThe King's Two Bodies CLThe Parliament CLIThe Republic's Blueprint CLIIThe Federation Question CLIIIThe One-Party State CLIVThe Referendum CLVMarbury's Desk CLVIThe Fourteenth Amendment CLVIISeparate and Unequal CLVIIIThe Warren Bench CLIXThe Commerce Clause CLXThe Dissent CLXIThe Zoning Map CLXIIThe Boss's Ledger CLXIIIThe Bond Issue CLXIVThe Police Power CLXVThe Annexation Fight CLXVIThe Renewal Bulldozer CLXVIIThe Treaty Table CLXVIIIThe Embassy CLXIXThe Blockade CLXXThe Alliance CLXXIThe Assembly Floor CLXXIIThe Trade War CLXXIIIThe Question-Mark Tracks Emblematic Films — The Decade Panels The Government Lounge Rogues, Ruffians, and Rascals The Processing Hall — The Dairy Wing The Creamery — The Second Wing The Civil Rights Movement 1945–1975 The American Indian The Gallery of Man The Sobering Rooms The Teaching Ward The Pharmacology Cabinet The Pathology Gallery The Epidemiology Map Room
Plan your visit
Research
Your route
…tracing your steps…
QR code linking back to this exhibit
SCAN TO RETURN TO THIS EXHIBIT