What are the richest counties in Iowa?

Dallas County ($102,379), Warren County ($94,588) and Madison County ($90,855) had the highest median household income in Iowa in the 2020–24 survey.

Data as of 2024 · updated November 5, 2026

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All 99 ranked Iowa counties

Iowa counties ranked by median household income
Rank	County	Median household income 2020–24	Change since 2016–20	Residents
1	Dallas County	$102,379	+15.9%	118,457
2	Warren County	$94,588	+17.8%	57,331
3	Madison County	$90,855	+26.5%	17,270
4	Mills County	$90,753	+20.8%	14,793
5	Grundy County	$87,205	+21.5%	12,361
6	Benton County	$86,962	+31.7%	26,004
7	Bremer County	$86,784	+20.2%	25,296
8	Sioux County	$86,098	+17.5%	36,774
9	Polk County	$83,576	+19.8%	516,546
10	Boone County	$83,531	+23.9%	26,799
11	Plymouth County	$83,251	+17.0%	25,697
12	Cedar County	$80,602	+16.4%	18,359
13	Harrison County	$79,535	+24.0%	14,623
14	Winneshiek County	$79,066	+25.2%	19,733
15	Marion County	$78,680	+22.7%	34,192
16	Scott County	$78,277	+22.5%	175,259
17	Buchanan County	$78,236	+16.3%	20,883
18	Worth County	$78,008	+29.1%	7,338
19	Guthrie County	$77,711	+24.1%	10,782
20	Linn County	$77,649	+15.4%	232,028
21	Dubuque County	$77,630	+20.4%	99,381
22	Louisa County	$77,354	+22.7%	10,416
23	Davis County	$77,194	+14.1%	9,230
24	Lyon County	$76,746	+16.4%	12,354
25	Chickasaw County	$75,675	+23.6%	11,663
26	Washington County	$75,647	+19.1%	22,667
27	Dickinson County	$75,432	+23.7%	18,077
28	Delaware County	$74,989	+17.4%	17,674
29	Johnson County	$74,935	+18.8%	160,044
30	Jackson County	$74,186	+25.6%	19,288
31	Sac County	$73,838	+28.5%	9,525
32	Butler County	$73,715	+30.5%	14,049
33	Woodbury County	$73,658	+21.2%	106,649
34	Pottawattamie County	$73,602	+22.9%	92,996
35	Jones County	$73,531	+28.7%	21,253
36	Ringgold County	$73,346	+31.0%	4,642
37	Marshall County	$73,315	+24.8%	39,890
38	Carroll County	$72,930	+23.2%	20,303
39	Palo Alto County	$72,781	+29.0%	8,899
40	Shelby County	$72,738	+20.9%	11,689
41	Hamilton County	$72,432	+20.2%	14,944
42	Humboldt County	$71,946	+29.2%	9,409
43	Adams County	$71,875	+37.5%	3,617
44	Buena Vista County	$71,719	+32.8%	20,449
45	Clarke County	$71,641	+30.1%	9,574
46	Fremont County	$71,621	+20.0%	6,522
47	Mitchell County	$71,365	+18.4%	10,650
48	Jasper County	$71,311	+19.9%	38,153
49	Cherokee County	$71,269	+26.6%	11,369
50	Iowa County	$71,223	+13.7%	16,504
51	Monroe County	$70,996	+19.3%	7,406
52	Mahaska County	$70,940	+25.7%	21,880
53	Tama County	$70,781	+29.3%	16,796
54	Allamakee County	$70,694	+27.3%	14,238
55	Hancock County	$70,601	+14.0%	10,528
56	Story County	$69,685	+19.5%	101,291
57	Muscatine County	$69,396	+14.8%	41,853
58	Osceola County	$69,239	+13.2%	5,980
59	Webster County	$68,975	+32.9%	36,838
60	Floyd County	$68,557	+32.4%	14,901
61	Monona County	$68,377	+31.8%	8,539
62	O'Brien County	$68,356	+19.5%	14,220
63	Cerro Gordo County	$68,189	+21.6%	42,372
64	Adair County	$68,092	+22.2%	7,403
65	Taylor County	$67,740	+17.3%	5,835
66	Kossuth County	$67,697	+20.6%	14,322
67	Winnebago County	$67,642	+31.1%	10,251
68	Howard County	$67,446	+18.9%	9,415
69	Henry County	$67,436	+23.8%	19,349
70	Poweshiek County	$67,391	+25.0%	18,368
71	Clayton County	$67,242	+19.1%	16,845
72	Wright County	$67,190	+31.2%	12,801
73	Crawford County	$67,027	+22.2%	16,237
74	Clinton County	$66,981	+28.3%	46,002
75	Black Hawk County	$66,417	+21.3%	131,532
76	Clay County	$65,428	+27.6%	16,202
77	Hardin County	$65,069	+18.5%	16,455
78	Calhoun County	$64,964	+17.5%	9,562
79	Wapello County	$64,766	+39.5%	35,210
80	Emmet County	$63,730	+12.4%	9,107
81	Montgomery County	$63,666	+14.2%	10,002
82	Greene County	$63,409	+24.1%	8,658
83	Ida County	$63,073	+16.3%	6,777
84	Cass County	$63,013	+21.2%	12,960
85	Des Moines County	$62,928	+21.5%	38,077
86	Lee County	$62,382	+19.8%	32,306
87	Keokuk County	$62,329	+19.8%	9,797
88	Wayne County	$61,964	+30.3%	6,738
89	Pocahontas County	$61,875	+15.5%	6,819
90	Lucas County	$61,793	+14.5%	8,847
91	Jefferson County	$61,620	+30.0%	15,291
92	Van Buren County	$61,161	+22.6%	7,131
93	Fayette County	$60,165	+20.7%	19,047
94	Franklin County	$59,894	+7.7%	9,868
95	Decatur County	$59,044	+22.6%	7,655
96	Audubon County	$58,229	+18.2%	5,509
97	Page County	$57,953	+13.2%	14,856
98	Union County	$57,772	+14.7%	11,829
99	Appanoose County	$54,934	+38.4%	12,077

How this is ranked

Median household income from the Census Bureau's American Community Survey 5-year estimates (2020–24). Survey estimates carry margins of error, so counties a few hundred dollars apart may not really differ. Counties with fewer than 1,000 residents, or without a figure for the same period as the others, are not ranked.

Source: U.S. Census Bureau, American Community Survey 5-year estimates. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built. More on every layer: data sources and licences.

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Questions

Which county in Iowa has the highest median household income?

Dallas County: $102,379, ahead of Warren County ($94,588) and Madison County ($90,855), of 99 Iowa counties ranked.

How is this ranking calculated?

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Median household income in other states

Across the U.S.