Richest Counties in America

The 15 Richest Counties in the U.S.

The East Coast and Northern California dominate this list of counties where residents have the highest median household incomes.

A man walks dogs in a park in San Mateo, California, the United States, June 14, 2021. California Governor Gavin Newsom and government health officials announced the official reopening of the state from Tuesday following months of anticipation.The reopening means that vaccinated people in California can go maskless in public, there will be no more limitations on out-of-state travelers, and California retail businesses can go back to full capacity. (Photo by Wu Xiaoling/Xinhua via Getty Images)
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Upscale Enclaves

American incomes continue to trend upward, though disparities by race and ethnicity remain, according to the latest five-year estimates from the U.S. Census Bureau’s American Community Survey.

Adjusted for inflation, the nation’s median household income rose 10.5% to $75,149 when comparing estimates covering 2013-2017 and 2018-2022. Median incomes in the past 12 months for the 2018-2022 period ranged from a high of $107,637 among Asian “householders” – which the Census Bureau defines in part as a person in whose name a home is owned, being bought or being rented – to a low of $50,901 among Black householders.

By specific race or ethnicity, Hispanic or Latino householders experienced the largest percentage increase in median household income between the periods of 2013-2017 and 2018-2022 at 18.1%, landing at a median income of $64,936. They were followed by American Indians and Alaska Natives, who experienced a 17.6% rise in median household income to $55,925.

[ READ: The 10 Richest States in America ]

Asian householders saw a 13.5% increase in median household income between five-year periods, while Black householders saw a 13.1% increase. Native Hawaiian and other Pacific Islander householders saw a 13.2% increase to $76,568, while median household income among non-Hispanic whites rose by 9.2% to $81,423.

The latest five-year estimates – which are "period" estimates reflecting data collected over time, the Census Bureau says – show a total of 116 counties or county equivalents in the U.S. had median household incomes that were above $100,000. Of the 15 counties with the highest incomes, five are located near the nation’s capital in Virginia or Maryland. Four of the richest counties are in California – all in the San Francisco Bay Area – while New Jersey is the only other state home to more than one county on the list, at two.

These are the 15 richest counties or county equivalents in the U.S. by median household income, according to American Community Survey estimates for 2018-2022.

Next:15. Somerset County, New Jersey
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15. Somerset County, New Jersey

Median Household Income: $131,948

State Median Household Income: $97,126

Median household income in Somerset County was the second-highest within New Jersey, which had the second-highest median household income among U.S. states, according to the 2018-2022 ACS estimates.

Next:14. Hunterdon County, New Jersey
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14. Hunterdon County, New Jersey

Median Household Income: $133,534

State Median Household Income: $97,126

Hunterdon County had the highest median household income of any county in New Jersey, where the state’s median household income ranked second-highest among U.S. states.

Next:13. Nantucket County, Massachusetts
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13. Nantucket County, Massachusetts

Median Household Income: $135,590

State Median Household Income: $96,505

Nantucket County had the highest median household income among counties in Massachusetts, which had the third-highest median household income among U.S. states.

Next:12. Los Alamos County, New Mexico
In this July 31, 2014 photo, residents enjoy the lush landscaping at Ashley Pond Park near a new county building and a renovated community center in Los Alamos, N.M. Tucked in the mountains of one of the poorest states is one of the nation’s wealthiest counties: Los Alamos, which, except for its landscapes, looks decidedly unlike the rest of New Mexico. (AP Photo/Jeri Clausing)
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(Jeri Clausing|AP)

12. Los Alamos County, New Mexico

Median Household Income: $135,801

State Median Household Income: $58,722

Los Alamos County had the highest median household income within the state of New Mexico, where state median household income ranked 46th in the U.S.

Next: 11. San Francisco County, California
SAN FRANCISCO, CA, USA - SEPTEMBER 21: San Francisco's cable cars return to service after COVID-19 shutdown in San Francisco, California, United States on September 21, 2021. California has initiated a reopening, lifting virtually all coronavirus restrictions on businesses and social gatherings. (Photo by Anibal Martel/Anadolu Agency via Getty Images)
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11. San Francisco County, California

Median Household Income: $136,689

State Median Household Income: $91,905

San Francisco County is one of four counties in California to be among the 15 richest by median household income. As a whole, California median household income ranked fifth-highest among U.S. states.

Next:10. Arlington County, Virginia
"The skyline of the city of Rosslyn, Virginia in the Washington DC metropolitan area (just across the Potomac River from the city of Washington DC.)"
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10. Arlington County, Virginia

Median Household Income: $137,387

State Median Household Income: $87,249

Arlington County is one of four counties within the state of Virginia to be among the country’s richest counties. Virginia’s median household income ranked 10th-highest among states.

Next:9. Nassau County, New York
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9. Nassau County, New York

Median Household Income: $137,709

State Median Household Income: $81,386

Median household income in Nassau County was the highest within New York, which among states, ranked 14th in the U.S. for median household income.

Next:8. Douglas County, Colorado
In this Friday, March 30, 2018, photograph, shoppers move along in an outlet mall in Castle Rock, Colo. (AP Photo/David Zalubowski)
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8. Douglas County, Colorado

Median Household Income: $139,010

State Median Household Income: $87,598

Douglas County had the highest median household income in Colorado, where total median household income ranked ninth-highest among U.S. states.

Next:7. Howard County, Maryland
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7. Howard County, Maryland

Median Household Income: $140,971

State Median Household Income: $98,461

Howard County had the highest median household income in Maryland, which had the highest median household income in the U.S. among states.

Next:6. Marin County, California
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6. Marin County, California

Median Household Income: $142,019

State Median Household Income: $91,905

Marin County, just north of San Francisco, had the third-highest median household income among counties in California. The state’s median household income ranked fifth-highest in the U.S.

Next:5. Fairfax County, Virginia
In this photo taken Oct. 7, 2015, the George Mason statue is seen through trees on the campus of George Mason University in Fairfax, Va. (AP Photo/Jacquelyn Martin)
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5. Fairfax County, Virginia

Median Household Income: $145,165

State Median Household Income: $87,249

Fairfax County was the third-richest county by median household income in Virginia, where median household income ranked 10th-highest in the U.S. among states.

Next:4. San Mateo County, California
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4. San Mateo County, California

Median Household Income: $149,907

State Median Household Income: $91,905

San Mateo County was the second-richest county in California, with the state’s median household income ranking fifth-highest in the U.S.

Next:3. Santa Clara County, California
Urban landscape in downtown San Jose, Silicon Valley, California
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3. Santa Clara County, California

Median Household Income: $153,792

State Median Household Income: $91,905

Santa Clara County ranked first among counties in California for median household income, with the state ranking as the fifth- richest in the U.S.

Next:2. Falls Church, Virginia
Scenes from W Broad Street in in Falls Church, VA
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2. Falls Church, Virginia

Median Household Income: $164,536

State Median Household Income: $87,249

The city of Falls Church had the second-highest median household income in Virginia among counties or county equivalents, and is one four such communities in the state to be among the richest in the U.S. The state’s median household income was 10th-highest in the U.S.

Next:1. Loudoun County, Virginia
Fora Hillman of Bloomfield, Va., drives her welsh pony along Willisville Road in Western Loudoun County, Monday, Nov. 12, 2018. (AP Photo/Douglas Graham)
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1. Loudoun County, Virginia

Median Household Income: $170,463

State Median Household Income: $87,249

Loudoun County, located near Washington, D.C., had the highest median household income in the U.S. As a state, Virginia ranked as the 10th-richest in the U.S.

Next:The Richest Counties in America by Median Household Income

The Richest Counties in America by Median Household Income

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Updated on Dec. 20, 2023: This content was originally published at an earlier date and has been updated with more recent information.

Healthiest Communities

Healthiest Communities is an interactive destination developed by U.S. News & World Report for consumers and policymakers. Backed by in-depth research and accompanied by news and analysis, the site features comprehensive rankings drawn from an examination of nearly 3,000 counties and county-equivalents on 89 metrics across 10 categories, informing residents, health care leaders and officials about local policies and practices that drive better health outcomes for all. Data was gathered and analyzed by the University of Missouri Extension Center for Applied Research and Engagement Systems (CARES).