State
|
County/County-equivalent
|
Per-capita income
|
Population
|
New York
|
County of New York
|
$62,498
|
1,605,272
|
Virginia
|
Arlington County
|
$62,018
|
214,861
|
Virginia
|
City of Falls Church
|
$59,088
|
12,731
|
California
|
Marin County
|
$56,791
|
254,643
|
Virginia
|
City of Alexandria
|
$54,608
|
143,684
|
Colorado
|
Pitkin County
|
$51,814
|
17,173
|
New Mexico
|
Los Alamos County
|
$51,044
|
17,979
|
Virginia
|
Fairfax County
|
$50,532
|
1,101,071
|
New Jersey
|
Hunterdon County
|
$50,349
|
127,047
|
Texas
|
Borden County
|
$50,042
|
649
|
Maryland
|
Montgomery County
|
$49,038
|
989,474
|
New Jersey
|
Morris County
|
$48,814
|
495,261
|
Connecticut
|
Fairfield County
|
$48,721
|
926,233
|
California
|
City and County of San Francisco
|
$48,486
|
817,501
|
Maryland
|
Howard County
|
$48,172
|
293,821
|
New York
|
Westchester County
|
$47,984
|
956,283
|
New Jersey
|
Somerset County
|
$47,803
|
326,207
|
Massachusetts
|
Town and County of Nantucket
|
$47,331
|
10,224
|
Virginia
|
Loudoun County
|
$46,565
|
326,477
|
Alaska
|
North Slope Borough
|
$46,457
|
9,484
|
|