The Richest County in Every State

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Johnson County, Kansas
Source: Wikimedia Commons

16. Johnson, Kansas
> County median household income: $76,113
> State median household income: $52,205
> Poverty rate: 6.2%
> Nov. unemployment: 3.1%

As is the case in many wealthy counties, Johnson residents have access to a major urban center. Located on the southwestern border of Kansas City, Johnson County’s labor force is within commuting distance of higher paying jobs often found in big cities. Unemployment is also less common in Johnson than it is statewide. Only 3.1% of the county’s workforce is out a job, compared to 3.8% of the state’s labor force.

Oldham County, Kentucky
Source: Wikimedia Commons

17. Oldham, Kentucky
> County median household income: $85,452
> State median household income: $43,740
> Poverty rate: 6.0%
> Nov. unemployment: 2.7%

Oldham County is the wealthiest in Kentucky and among the wealthiest nationwide. The typical Oldham household earns $85,452 a year, far more than the median income for all U.S. households of $53,889 a year. The county has grown rapidly since the 1970s, when the completed Interstate 71 connected it to the Louisville metro area and spawned new suburban development. The typical house in Oldham County is worth $247,500, the highest median home value in the state.

Ascension Parish, Louisiana
Source: Wikimedia Commons

18. Ascension, Louisiana
> County median household income: $70,551
> State median household income: $45,047
> Poverty rate: 11.8%
> Nov. unemployment: 4.5%

Financial hardship is relatively common in Louisiana. About one in every five residents of the Bayou State live in poverty, one of the highest poverty rates of any U.S. state. Not every corner of the state reports such low incomes, however. In Ascension parish, the typical household earns $70,551 a year, and fewer than 12% of residents live in poverty. Within commuting distance to both New Orleans and Baton Rouge, Ascension residents have access to jobs in both the state’s capital and its largest city.

Cumberland County, Maine
Source: Wikimedia Commons

19. Cumberland, Maine
> County median household income: $60,051
> State median household income: $49,331
> Poverty rate: 11.6%
> Nov. unemployment: 3.1%

Encompassing Portland, Cumberland County is the most populous and wealthiest in Maine. Among the county’s 286,000 residents, the median household income is just over $60,000 a year, nearly $11,000 more than the median income statewide.

Like many other counties on this list, Cumberland is also the most educated county in Maine. Higher educational attainment often translates to the ability to work at higher paying jobs, and in Maine’s wealthiest county, 43% of adults have at least a bachelor’s degree. Statewide, only 29% of adults have earned a bachelor’s degree.

Howard County, Maryland
Source: Thinkstock

20. Howard, Maryland
> County median household income: $110,238
> State median household income: $74,551
> Poverty rate: 5.2%
> Nov. unemployment: 3.0%

Howard’s population is the highest earning of any county in the wealthiest state in the country. The typical Howard household earns $110,238 a year, or about $36,000 more than the median household income in Maryland, which itself is $21,000 higher than the national median household income of $53,889.

Howard County is within commuting distance of both the state capital, Annapolis, and the state’s largest city, Baltimore. Many of the county’s wealthy residents also likely hold high-paying jobs in the nation’s capital, Washington D.C. Only three other U.S. counties, all in Virginia, have a higher median household income than Howard.