你这么一说, 我看了下维基, 发现...... data 比较老 2016 年

Median household income[edit]

American Community Survey[edit]

Presented below are the 25 highest-income counties (with populations of 65,000 or greater) in the United States by median household income according to the 2016 American Community Survey^[4] prepared by the US Census Bureau. Five of the counties are located in Virginia, five in Maryland, four in California, three in New Jersey, two in New York, and one each in: Colorado, Georgia, Massachusetts, Ohio, Tennessee, and Texas. (Disclaimer: This only includes counties that participated in this single survey)

Rank	County	State	Median Household Income
1	Loudoun County	Virginia	$134,464
2	Howard County	Maryland	$120,941
3	Fairfax County	Virginia	$115,717
4	Hunterdon County	New Jersey	$113,684
5	Santa Clara County	California	$111,069
6	Arlington County	Virginia	$110,388
7	Douglas County	Colorado	$109,292
8	San Mateo County	California	$108,627
9	Morris County	New Jersey	$106,985
10	Williamson County	Tennessee	$106,054
11	Nassau County	New York	$105,870
12	Somerset County	New Jersey	$104,478
13	Marin County	California	$103,845
14	San Francisco County	California	$103,801
15	Delaware County	Ohio	$101,693
16	Forsyth County	Georgia	$100,909
17	Montgomery County	Maryland	$99,763
18	Calvert County	Maryland	$98,732
19	Prince William County	Virginia	$97,986
20	Stafford County	Virginia	$97,484
21	Putnam County	New York	$96,992
22	Anne Arundel County	Maryland	$96,483
23	Charles County	Maryland	$95,735
24	Rockwall County	Texas	$95,731
25	Middlesex County	Massachusetts	$95,249