Regional Income Disparities Revealed
DC Metro Area Counties Report Nation's Highest Incomes, Driven by Education and Location
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Key Points
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In Florida, a cluster of counties shows median household incomes in the upper $50,000s to low $60,000s with sizable shares of households earning over $100k: Washington County ($58,210 median; 23.1% over $100k), Liberty County ($58,671; 26.7%), Columbia County ($59,205; 25.1%), Hardee County ($60,489; 28.1%), Marion County ($61,010; 25.8%), Gulf County ($61,179; 28.7%), and Jefferson County listed among others.
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Louisiana’s data uses parish-level rankings to measure highest-earning areas, with parishes ranked by the 2024 5-year census median household income data, illustrating sub-state variation beyond counties and states.
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Across Illinois, Kentucky, Kansas, Florida, and Louisiana, the rankings rely on the U.S. Census Bureau’s 2024 5-year estimates to determine each state's highest-earning counties or parishes, reflecting a consistent methodology across states (IL list via Stacker, KY via Stacker, KS via Stacker, FL via Miami Herald, LA via West Central’s Best).
Five of the seven highest-earning counties in the United States sit inside the Washington, D.C. metro area, spanning Maryland and Northern Virginia, according to Miami Herald. Loudoun County, Virginia leads the nation with a median household income of roughly $178,707. Meanwhile, the U.S. Census Bureau pegged the 2024 national real median household income at $83,730 — statistically unchanged from 2023.
The gap between the richest and poorest parts of America remains enormous. Massachusetts leads all states at $113,900, while Mississippi sits last at $59,127, a spread of more than $55,000, according to U.S. Census Bureau data compiled by analysts.
Why DC's Suburbs Dominate the Income Charts
The D.C. metro's dominance comes down to two things: federal money and education. Loudoun County, Fairfax County, and Falls Church in Virginia are home to thousands of defense contractors, lawyers, and policy workers. These jobs pay very well and require advanced degrees. Miami Herald reports that this concentration of high-skill, high-pay federal-adjacent work has driven median incomes far above the national norm for over a decade.
Analysts also point to "assortative mating" — a trend where highly educated professionals marry partners with similar careers and salaries. Two lawyers or two policy analysts sharing one household can push that household's income well above $150,000. This social pattern inflates median incomes in specific enclaves, widening the gap with rural and lower-income areas, according to Miami Herald.
State-by-State: Where the Highest Earners Live
Across Illinois, Kentucky, and Kansas, wealthy counties cluster near major cities. DuPage County, Illinois, leads its state at $112,096. Oldham County, Kentucky, tops its state at $122,497 — the only Kentucky county above $100,000 besides Spencer County at $102,618. Johnson County, Kansas, leads that state at $109,208. Stacker compiled these rankings using 2024 five-year estimates from the U.S. Census Bureau's American Community Survey.
In Florida, the picture is different. Even the state's top county, St. Johns County, sits at $88,794 — close to the national median but far below D.C.-area figures. Lower-ranked Florida counties like Washington County ($58,210) and Liberty County ($58,671) fall well below the $83,730 national benchmark, highlighting deep regional gaps within a single state, according to Miami Herald.
High County Medians Can Hide Deep Local Poverty
A high county median does not mean everyone is doing well. In Miami-Dade County, a county attorney earns $470,000 a year. Janitorial staff in the same government building earn less than $25,000. Miami Herald reported that Mayor Daniella Levine Cava oversees a county payroll where legal staff alone can earn over $300,000 — while many workers at the bottom earn poverty-level wages.
Analysts at Kiplinger add another wrinkle. In cities like San Francisco and New York, raw income looks high. But after adjusting for housing and cost of living, many of those counties fall off "richest" lists entirely. D.C.-area counties hold their top spots even after cost-of-living adjustments, because federal salaries are simply that large, according to Kiplinger.
States Like Louisiana and Kentucky Push Back With New Strategies
Louisiana measures income at the parish level rather than the county level, but the underlying story is the same. Wealth clusters near economic hubs while rural areas lag behind. Officials in Louisiana and Kentucky are now pushing to diversify into AI data centers and renewable energy, hoping to build the kind of stable, high-skill job base that has made the D.C. metro so dominant, according to West Central's Best.
Kentucky Governor Andy Beshear has been vocal about his state's progress. "This national recognition shows that Kentucky is an economic leader," Beshear said, citing four Kentucky counties — Muhlenberg, Scott, Shelby, and Mason — recognized for top per-capita economic growth. Still, with only two counties above $100,000 in median income, Kentucky has significant ground to cover before it challenges D.C.-area dominance.
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