America’s Richest Counties

The country’s fattest paychecks are brought home to these high-end suburbs.

The country may have started its long haul back to economic recovery — if recent news that consumer spending increased slightly in January is any indication. But even so, most Americans still aren’t ready to brag about their paychecks.

Except, perhaps, in Loudoun County, Va., where median household incomes are higher than anywhere else in the country. This affluent suburb of Washington, D.C., where families take home a median $110,643 annually, tops our list of America’s 25 richest counties.

Loudoun is emblematic of the counties where the highest incomes are found. The country’s riches tend to trickle away from big cities. It’s not major metro areas raking in the biggest salaries; rather, it’s the tony suburbs just outside big-industry centers that soak up big-city money.

Glitzy Southern California and big oil states are largely absent from the list: 19 of the 25 richest counties in the country are on the East Coast. In part, that’s because our list looks at the middle incomes, and counties in the East tend to be smaller, thereby allowing for less of a spread between the richest and poorest workers.

Data for our list come from the U.S. Census Bureau, which conducts the annual American Community Survey, a smaller-scale version of the decennial census. The most recent data are from the calendar year 2008 and include 1,889 counties.

Wealth Radiates From the Capital

It’s not surprising that workers in Loudoun do well. The federal government generates a wealth of jobs, keeping unemployment in the D.C. metro area at a low 6.2% (the national average is still near 10%). The best-paid workers from D.C. take their money home to Loudoun, where jobs have grown 4% between the second quarter of 2007 and the second quarter of 2009, according to the Bureau of Labor Statistics.

But a big chunk of that healthy income goes toward maintaining the good life. Loudoun homeowners pay a median $4,844 per year in property taxes. Tax burdens are similarly high in a lot of well-off counties.

Like Loudoun, a number of the country’s wealthiest households are tightly concentrated in counties around the nation’s capital. Six of the richest counties lie on the outskirts of Washington: Fairfax County, Va., Arlington County, Va., Stafford County, Va., Prince William County, Va., Charles County, Md., and Alexandria City, Va.

Not far from D.C. lies another cluster of wealthy counties. Howard County, Md., a suburb of Baltimore, has a standout school system with standardized test scores that consistently beat out the national average, and median household incomes of $101,710. In nearby Montgomery County, where 59% of residents over 25 have an advanced degree, households bring in a median $93,999. Historic Calvert County, Md., has profited from its roots as a tobacco-rich farmland as well as its proximity to Washington, D.C., and Baltimore, and claims a median income of $89,049.

Big Apple, Big Incomes

The suburbs of the New York area reap the benefits of the big city’s financial industry. Six of the wealthiest counties in the country — Hunterdon County, N.J., Somerset County, N.J., Morris County, N.J., Nassau County, N.Y., Putnam County, N.Y. and Suffolk County, N.Y. — are all part of the New York metropolitan area.

These counties may be knocked a few rungs down the list when the next American Community Survey is released later this year. The new data will reflect incomes for 2009, when the near-collapse of Wall Street stripped many families in the city — and its wealthy outlying suburbs — of their paychecks.

While big-city life may seem glamorous, the rule that it’s the boring old ‘burbs outside of moneymaking metros where the highest incomes are found also applies far beyond the East Coast. Median incomes are highest in counties outside big cities driven by growth industries such as health care, technology and government.

Counties No. 18 and 19 on the list are two wealth centers in California: Marin County and Santa Clara County. Picturesque and stylish Marin offers scenic vistas, health care industry and technology industry money — Kaiser Permanente and Comcast are among its major employers — and a median income of $88,101. Well-paid, highly skilled tech jobs boost the median income to $87,287 in Santa Clara.

Nashville, Tenn., suburb Williamson County and Atlanta, Ga., suburb Forsyth County are the South’s only representatives–but just like the other counties on our list, they have big-city growth industries to thank for their prosperity.

Nashville may be best known for country music, but it’s the heavy-hitting health care giants like Hospital Corporation of America headquartered there that account for locals’ wealth. Many workers in that booming industry take their paychecks home to Williamson, which has a median income of $88,316.

Beneficiaries of the jobs that companies like UPS, Coca Cola and Delta Airlines created in Atlanta have increasingly taken up residence in Forsyth, fueling a 71% population boom between 2000 and 2008 and helping drive the area’s median income up to $86,938.

It makes sense that suburban median incomes tend to beat out big cities; workers earning big metropolitan incomes look for top-tier schools and space to settle with their families, thus pulling up median incomes in small bedroom communities. It also helps if those city economies are linked to growth sectors with lots of highly-skilled workers.

Where you choose to settle tends to be an extension of how much you make, rather than the other way around.

1. County: Loudoun County, Va.

Population: 277,433
Median Household Income: $110,643.00
Percent of Residents 25 or Older with Bachelor’s Degree or Higher: 58

2. County: Fairfax County, Va.

Population: 1,005,980
Median Household Income: $106,785.00
Percent of Residents 25 or Older with Bachelor’s Degree or Higher: 60

3. County: Howard County, Md.

Population: 272,412
Median Household Income: $101,710.00
Percent of Residents 25 or Older with Bachelor’s Degree or Higher: 60

4. County: Hunterdon County, N.J.

Population: 129,000
Median Household Income: $100,947.00
Percent of Residents 25 or Older with Bachelor’s Degree or Higher: 52

5. County: Somerset County, N.J.

Population: 321,589
Median Household Income: $100,207.00
Percent of Residents 25 or Older with Bachelor’s Degree or Higher: 53

Posted in Real Estate.

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