Summary
Before the American Civil War, the wealthiest counties were primarily located in Louisiana and Mississippi, because of the high number of enslaved people, who were not included in the population.[1]
Loudoun County, Virginia, a suburb of Washington, D.C., is the highest-income county by median household income. Another Washington, D.C. suburb, Arlington County, Virginia, ranked as the highest-income county by median family income as of 2013.[2]
Median household income
2020 census
The chart below depicts the 100 highest income counties in the United States by median household income according to the 2020 United States census.[3] Virginia has the most counties in the top 100 with 18. It is followed by California with 11; Maryland with 10; New Jersey with nine; New York and Texas with six each; Illinois with five; Colorado, Massachusetts, and Minnesota with four each; Ohio and Pennsylvania with three each; Georgia, Indiana, Utah, and Washington with two each; and Connecticut, Washington, D.C., Iowa, Kansas, Kentucky, New Hampshire, New Mexico, Tennessee, and Wisconsin with one each.
| Rank | County or
Equivalent | State | Median
Household
Income |
|---|
| 1 | Loudoun County |  Virginia | $147,111 |
| 2 | Falls Church | Virginia | $146,922 |
| 3 | Santa Clara County |  California | $130,890 |
| 4 | San Mateo County | California | $128,091 |
| 5 | Fairfax County | Virginia | $127,866 |
| 6 | Howard County |  Maryland | $124,042 |
| 7 | Arlington County | Virginia | $122,604 |
| 8 | Marin County | California | $121,671 |
| 9 | Douglas County |  Colorado | $121,393 |
| 10 | Nassau County |  New York | $120,036 |
| 11 | Los Alamos County |  New Mexico | $119,266 |
| 12 | San Francisco County | California | $119,136 |
| 13 | Hunterdon County |  New Jersey | $117,858 |
| 14 | Morris County | New Jersey | $117,298 |
| 15 | Somerset County | New Jersey | $116,510 |
| 16 | Forsyth County |  Georgia | $112,834 |
| 17 | Calvert County | Maryland | $112,696 |
| 18 | Nantucket County |  Massachusetts | $112,306 |
| 19 | Stafford County | Virginia | $112,247 |
| 20 | Montgomery County | Maryland | $111,812 |
| 21 | Delaware County |  Ohio | $111,411 |
| 22 | Williamson County |  Tennessee | $111,196 |
| 23 | Fairfax | Virginia | $109,708 |
| 24 | Prince William County | Virginia | $107,707 |
| 25 | Putnam County | New York | $107,246 |
| 26 | Summit County |  Utah | $106,973 |
| 27 | Middlesex County | Massachusetts | $106,202 |
| 28 | Rockwall County |  Texas | $105,956 |
| 29 | Fauquier County | Virginia | $105,665 |
| 30 | Suffolk County | New York | $105,362 |
| 31 | Norfolk County | Massachusetts | $105,320 |
| 32 | Alameda County | California | $104,888 |
| 33 | Bergen County | New Jersey | $104,623 |
| 34 | Elbert County | Colorado | $104,231 |
| 35 | Chester County |  Pennsylvania | $104,161 |
| 36 | Carver County |  Minnesota | $104,011 |
| 37 | Contra Costa County | California | $103,997 |
| 38 | Oldham County |  Kentucky | $103,761 |
| 39 | Charles County | Maryland | $103,678 |
| 40 | Monmouth County | New Jersey | $103,523 |
| 41 | Scott County | Minnesota | $103,261 |
| 42 | Anne Arundel County | Maryland | $103,225 |
| 43 | Alexandria | Virginia | $102,227 |
| 44 | Broomfield County | Colorado | $101,206 |
| 45 | Poquoson | Virginia | $100,696 |
| 46 | Frederick County | Maryland | $100,685 |
| 47 | Collin County | Texas | $100,541 |
| 48 | Morgan County | Utah | $100,408 |
| 49 | Fort Bend County | Texas | $100,189 |
| 50 | Carroll County | Maryland | $99,569 |
| 51 | Westchester County | New York | $99,489 |
| 52 | King County |  Washington | $99,158 |
| 53 | Hamilton County |  Indiana | $98,880 |
| 54 | Kendall County | Texas | $98,692 |
| 55 | New Kent County | Virginia | $97,688 |
| 56 | Washington County | Minnesota | $97,584 |
| 57 | Fairfield County |  Connecticut | $97,539 |
| 58 | Goochland County | Virginia | $97,146 |
| 59 | Kendall County |  Illinois | $96,854 |
| 60 | King George County | Virginia | $96,711 |
| 61 | Queen Anne's County | Maryland | $96,467 |
| 62 | Sussex County | New Jersey | $96,222 |
| 63 | St. Mary's County | Maryland | $95,864 |
| 64 | DuPage County | Illinois | $94,930 |
| 65 | Rockland County | New York | $94,840 |
| 66 | Orange County | California | $94,441 |
| 67 | Harford County | Maryland | $94,003 |
| 68 | Rockingham County |  New Hampshire | $93,962 |
| 69 | Powhatan County | Virginia | $93,833 |
| 70 | Fayette County | Georgia | $93,777 |
| 71 | Placer County | California | $93,677 |
| 72 | Montgomery County | Pennsylvania | $93,518 |
| 73 | York County | Virginia | $93,356 |
| 74 | Bucks County | Pennsylvania | $93,181 |
| 75 | Plymouth County | Massachusetts | $92,906 |
| 76 | Lake County | Illinois | $92,654 |
| 77 | Napa County | California | $92,219 |
| 78 | Middlesex County | New Jersey | $91,731 |
| 79 | James City County | Virginia | $91,675 |
| 80 | Johnson County |  Kansas | $91,650 |
| 81 | Hanover County | Virginia | $91,444 |
| 82 | Spotsylvania County | Virginia | $90,913 |
| 83 | Washington |  District of Columbia | $90,842 |
| 84 | Williamson County | Texas | $90,834 |
| 85 | Will County | Illinois | $90,800 |
| 86 | Gilpin County | Colorado | $90,547 |
| 87 | Denton County | Texas | $90,354 |
| 88 | Burlington County | New Jersey | $90,329 |
| 89 | McHenry County | Illinois | $90,014 |
| 90 | Santa Cruz County | California | $89,986 |
| 91 | New York County | New York | $89,812 |
| 92 | Boone County | Indiana | $89,444 |
| 93 | Warren County | Ohio | $89,410 |
| 94 | Ventura County | California | $89,295 |
| 95 | Snohomish County | Washington | $89,273 |
| 96 | Gloucester County | New Jersey | $89,056 |
| 97 | Waukesha County |  Wisconsin | $88,985 |
| 98 | Union County | Ohio | $88,565 |
| 99 | Dakota County | Minnesota | $88,468 |
| 100 | Dallas County |  Iowa | $88,368 |
Per capita income
2020 Census
| Rank | County or
Equivalent | State | Per
Capita
Inc |
|---|
| 1 | New York County | New York | $83,008 |
| 2 | Marin County | California | $78,995 |
| 3 | Arlington County | Virginia | $77,535 |
| 4 | San Francisco County | California | $77,267 |
| 5 | Falls Church | Virginia | $76,354 |
| 6 | San Mateo County | California | $69,919 |
| 7 | Alexandria | Virginia | $68,640 |
| 8 | Gilpin County | Colorado | $66,627 |
| 9 | Teton County |  Wyoming | $66,296 |
| 10 | Santa Clara County | California | $65,052 |
| 11 | Los Alamos County | New Mexico | $64,521 |
| 12 | Washington | District of Columbia | $63,793 |
| 13 | Fairfax County | Virginia | $61,957 |
| 14 | Morris County | New Jersey | $61,915 |
| 15 | Westchester County | New York | $61,830 |
| 16 | Somerset County | New Jersey | $61,805 |
| 17 | Hunterdon County | New Jersey | $61,328 |
| 18 | Loudoun County | Virginia | $61,045 |
| 19 | Summit County | Utah | $60,768 |
| 20 | Norfolk County | Massachusetts | $60,406 |
| 21 | King County | Washington | $59,843 |
| 22 | Montgomery County | Maryland | $59,384 |
| 23 | Howard County | Maryland | $58,560 |
| 24 | Middlesex County | Massachusetts | $58,399 |
| 25 | Monmouth County | New Jersey | $57,836 |
| 26 | Douglas County | Colorado | $57,481 |
| 27 | Fairfax | Virginia | $57,091 |
| 28 | Williamson County | Tennessee | $56,545 |
| 29 | Nassau County | New York | $55,763 |
| 30 | Bergen County | New Jersey | $55,710 |
| 31 | Chester County | Pennsylvania | $55,702 |
| 32 | Broomfield County | Colorado | $55,176 |
| 33 | Alameda County | California | $53,815 |
| 34 | Contra Costa County | California | $53,656 |
| 35 | Loving County | Texas | $53,358 |
| 36 | Montgomery County | Pennsylvania | $53,343 |
| 37 | San Juan County | Washington | $52,881 |
| 38 | Fulton County | Georgia | $52,842 |
| 39 | Hamilton County | Indiana | $52,437 |
| 40 | Boulder County | Colorado | $52,401 |
| 41 | Delaware County | Ohio | $52,397 |
| 42 | Nantucket County | Massachusetts | $52,324 |
| 43 | Newport County |  Rhode Island | $52,030 |
| 44 | Bristol County | Rhode Island | $51,917 |
| 45 | Johnson County | Kansas | $51,663 |
| 46 | Rockingham County | New Hampshire | $51,627 |
| 47 | Dukes County | Massachusetts | $51,354 |
| 48 | Collier County |  Florida | $51,296 |
| 49 | Talbot County | Maryland | $51,234 |
| 50 | Anne Arundel County | Maryland | $51,113 |
| 51 | Ozaukee County | Wisconsin | $51,032 |
| 52 | Waukesha County | Wisconsin | $50,837 |
| 53 | Calvert County | Maryland | $50,496 |
| 54 | Carver County | Minnesota | $50,492 |
| 55 | Hennepin County | Minnesota | $50,478 |
| 56 | DuPage County | Illinois | $50,344 |
| 57 | Bucks County | Pennsylvania | $50,315 |
| 58 | Elbert County | Colorado | $50,147 |
| 59 | Barnstable County | Massachusetts | $49,973 |
| 60 | Albemarle County | Virginia | $49,942 |
| 61 | Putnam County | New York | $49,808 |
| 62 | Kalawao County |  Hawaii | $49,700 |
| 63 | Boone County | Indiana | $49,666 |
| 64 | Napa County | California | $49,641 |
| 65 | Forsyth County | Georgia | $49,506 |
| 66 | Fauquier County | Virginia | $49,440 |
| Lake County | Illinois | $49,440 |
| 68 | Suffolk County | New York | $49,404 |
| 69 | Travis County | Texas | $49,191 |
| 70 | Queen Anne's County | Maryland | $49,178 |
| 71 | Oakland County |  Michigan | $49,012 |
| 72 | Eagle County | Colorado | $49,010 |
| 73 | Plymouth County | Massachusetts | $48,785 |
| 74 | Placer County | California | $48,580 |
| 75 | Collin County | Texas | $48,438 |
| 76 | Suffolk County | Massachusetts | $47,916 |
| 77 | Rockwall County | Texas | $47,802 |
| 78 | Santa Cruz County | California | $47,619 |
| 79 | North Slope Borough |  Alaska | $47,585 |
| 80 | Sonoma County | California | $47,580 |
| 81 | Dallas County | Iowa | $47,488 |
| 82 | Dunn County |  North Dakota | $47,472 |
| 83 | Scott County | Minnesota | $47,334 |
| 84 | James City County | Virginia | $47,223 |
| 85 | Burlington County | New Jersey | $47,065 |
| 86 | Oldham County | Kentucky | $46,833 |
| 87 | Frederick County | Maryland | $46,615 |
| 88 | Fayette County | Georgia | $46,522 |
| 89 | Essex County | Massachusetts | $46,263 |
| 90 | Orange County | California | $46,099 |
| 91 | Charleston County |  South Carolina | $46,066 |
| 92 | Washington County | Rhode Island | $45,956 |
| 93 | Carroll County | Maryland | $45,800 |
| 94 | Denton County | Texas | $45,782 |
| 95 | Cumberland County |  Maine | $45,704 |
| 96 | Cape May County | New Jersey | $45,689 |
| 97 | Orange County |  North Carolina | $45,681 |
| 98 | Stafford County | Virginia | $45,618 |
| 99 | Juneau Borough | Alaska | $45,607 |
| 100 | Washtenaw County | Michigan | $45,500 |
Highest-income counties and places by state
For more detailed lists of rankings of counties and places in the individual states, see the following pages:
See also
Notes and references
