The 10 Richest Counties In Iowa For 2026

The richest counties in Iowa are Dallas County and Madison County for 2026 based on Saturday Night Science.

You’re probably never going to make enough money to live in the richest counties in Iowa.

The median household income in Dallas County, the richest county in Iowa is $102,379, significantly higher than the US median of $74,580, which means based purely on math most people never make enough to live there.

And that’s okay because it’s still fun to look at the people living in the lap of luxury.

So we used Saturday Night Science and the most recent Census to rank home prices and incomes for all 99 counties in the Hawkeye State. Let’s star gaze together.

What is the richest county in Iowa? The richest county in Iowa is Dallas County. In contrast, the poorest county in the state is Appanoose County, according to the Census data.

1

No. 1 richest county in Iowa

Dallas County, IA

107,968 people
$102,379 median income · $349,911 median home price
Median income +36% vs IA
$102,379
IA $75k
Median home value +51% vs IA
$349,911
IA $232k
2

No. 2 richest county in Iowa

Madison County, IA

16,926 people
$90,855 median income · $333,980 median home price
Median income +21% vs IA
$90,855
IA $75k
Median home value +44% vs IA
$333,980
IA $232k
2

No. 2 richest county in Iowa

Warren County, IA

54,409 people
$94,588 median income · $320,411 median home price
Median income +26% vs IA
$94,588
IA $75k
Median home value +38% vs IA
$320,411
IA $232k
4

No. 4 richest county in Iowa

Mills County, IA

14,568 people
$90,753 median income · $277,125 median home price
Median income +21% vs IA
$90,753
IA $75k
Median home value +20% vs IA
$277,125
IA $232k
5

No. 5 richest county in Iowa

Sioux County, IA

36,212 people
$86,098 median income · $303,973 median home price
Median income +15% vs IA
$86,098
IA $75k
Median home value +31% vs IA
$303,973
IA $232k
6

No. 6 richest county in Iowa

Benton County, IA

25,724 people
$86,962 median income · $276,829 median home price
Median income +16% vs IA
$86,962
IA $75k
Median home value +20% vs IA
$276,829
IA $232k
7

No. 7 richest county in Iowa

Polk County, IA

503,175 people
$83,576 median income · $278,561 median home price
Median income +11% vs IA
$83,576
IA $75k
Median home value +20% vs IA
$278,561
IA $232k
8

No. 8 richest county in Iowa

Winneshiek County, IA

19,873 people
$79,066 median income · $313,931 median home price
Median income +5% vs IA
$79,066
IA $75k
Median home value +36% vs IA
$313,931
IA $232k
8

No. 8 richest county in Iowa

Plymouth County, IA

25,747 people
$83,251 median income · $286,326 median home price
Median income +11% vs IA
$83,251
IA $75k
Median home value +24% vs IA
$286,326
IA $232k
10

No. 10 richest county in Iowa

Bremer County, IA

25,204 people
$86,784 median income · $252,840 median home price
Median income +16% vs IA
$86,784
IA $75k
Median home value +9% vs IA
$252,840
IA $232k

The receipts

Compare the top ten

Pick a metric. The bars rescale. The red line is Iowa’s statewide median.

City Median income vs IA
1 Dallas County $102,379 +36%
2 Madison County $90,855 +21%
2 Warren County $94,588 +26%
4 Mills County $90,753 +21%
5 Sioux County $86,098 +15%
6 Benton County $86,962 +16%
7 Polk County $83,576 +11%
8 Winneshiek County $79,066 +5%
8 Plymouth County $83,251 +11%
10 Bremer County $86,784 +16%

Iowa statewide median: $75,059

City Median home value vs IA
1 Dallas County $349,911 +51%
2 Madison County $333,980 +44%
2 Warren County $320,411 +38%
4 Mills County $277,125 +20%
5 Sioux County $303,973 +31%
6 Benton County $276,829 +20%
7 Polk County $278,561 +20%
8 Winneshiek County $313,931 +36%
8 Plymouth County $286,326 +24%
10 Bremer County $252,840 +9%

Iowa statewide median: $231,585

City Population vs IA
1 Dallas County 107,968
2 Madison County 16,926
2 Warren County 54,409
4 Mills County 14,568
5 Sioux County 36,212
6 Benton County 25,724
7 Polk County 503,175
8 Winneshiek County 19,873
8 Plymouth County 25,747
10 Bremer County 25,204

On the map

Where Iowa’s richest counties are

Saturday Night Science

Methodology: How do you determine which Iowa county is the richest?

To determine the richest county in Iowa, we have to look at a handful of metrics that correlate with how rich people are. To do that, we made assumptions about what makes a county rich. For reference, we are trying to make the kind of argument you’d make at a bar using facts, Saturday Night Science.

With that in mind, we went to the American Community Survey data and Zillow for the most recent reporting period for data on the following:

  • Average Home Price
  • Median Income

We then ranked each county in Iowa for each of the criteria from one to 99, with one being the richest.

Taking the average rank across the two criteria, we created a Rich Score with the county posting the lowest overall score being the “Richest County In Iowa.”

The result is some of the places with the most expensive real estate and highest earners in the Hawkeye State.

We updated this article for 2026. This report is our first time ranking the richest counties to live in Iowa.

The full plate

Detailed List Of The Richest Counties In Iowa

Click any column to sort. Search by county name.

RankCountyPopulationMedian IncomeAverage Home Price
1Dallas County107,968$102,379$349,911
2Madison County16,926$90,855$333,980
2Warren County54,409$94,588$320,411
4Mills County14,568$90,753$277,125
5Sioux County36,212$86,098$303,973
6Benton County25,724$86,962$276,829
7Polk County503,175$83,576$278,561
8Winneshiek County19,873$79,066$313,931
8Plymouth County25,747$83,251$286,326
10Bremer County25,204$86,784$252,840
11Dickinson County17,990$75,432$375,032
12Marion County33,642$78,680$266,824
13Cedar County18,349$80,602$247,380
14Guthrie County10,688$77,711$270,628
15Dubuque County99,030$77,630$272,846
16Johnson County156,639$74,935$305,263
17Boone County26,668$83,531$230,323
17Scott County174,608$78,277$241,812
19Grundy County12,384$87,205$214,673
20Lyon County12,162$76,746$259,058
21Linn County230,004$77,649$232,276
22Harrison County14,632$79,535$218,653
23Buchanan County20,694$78,236$220,037
24Davis County9,157$77,194$229,109
25Delaware County17,558$74,989$231,870
27Washington County22,561$75,647$226,574
27Jackson County19,390$74,186$230,726
27Pottawattamie County93,424$73,602$236,650
29Jones County20,896$73,531$236,012
30Chickasaw County11,807$75,675$212,357
31Worth County7,350$78,008$187,844
31Story County100,466$69,685$273,205
33Woodbury County106,247$73,658$203,074
34Allamakee County14,092$70,694$248,586
35Jasper County37,954$71,311$226,755
35Shelby County11,778$72,738$211,831
37Carroll County20,594$72,930$202,644
38Iowa County16,507$71,223$224,938
40Mitchell County10,575$71,365$206,631
40Butler County14,268$73,715$184,889
40Marshall County40,114$73,315$189,667
42Clayton County17,013$67,242$265,997
43Louisa County10,678$77,354$170,178
44Clarke County9,662$71,641$192,362
45Buena Vista County20,753$71,719$186,339
45Mahaska County22,021$70,940$194,979
47Ringgold County4,645$73,346$172,344
48Muscatine County42,559$69,396$195,873
49Sac County9,689$73,838$164,687
50Fremont County6,514$71,621$180,884
51Cerro Gordo County42,632$68,189$196,088
51Poweshiek County18,545$67,391$215,588
53Palo Alto County8,863$72,781$169,655
54O’Brien County14,126$68,356$192,728
55Adair County7,460$68,092$190,466
56Howard County9,445$67,446$194,689
56Hamilton County14,886$72,432$163,454
58Hancock County10,671$70,601$180,647
59Humboldt County9,591$71,946$159,105
60Tama County16,868$70,781$171,357
61Monroe County7,513$70,996$168,654
62Adams County3,622$71,875$156,660
63Osceola County6,100$69,239$171,599
63Henry County20,004$67,436$186,274
65Cherokee County11,600$71,269$157,504
66Clay County16,461$65,428$189,272
67Black Hawk County131,049$66,417$182,638
68Crawford County16,277$67,027$176,453
69Clinton County46,268$66,981$173,141
69Kossuth County14,516$67,697$167,979
71Floyd County15,328$68,557$156,965
72Monona County8,557$68,377$156,608
73Jefferson County15,705$61,620$182,079
74Greene County8,688$63,409$170,550
75Van Buren County7,241$61,161$181,866
76Lucas County8,716$61,793$176,555
77Winnebago County10,583$67,642$150,841
77Webster County36,886$68,975$137,618
79Cass County13,096$63,013$160,246
80Taylor County5,868$67,740$135,815
81Emmet County9,262$63,730$151,541
81Calhoun County9,803$64,964$149,518
83Wright County12,791$67,190$136,478
83Ida County6,911$63,073$151,974
85Hardin County16,639$65,069$141,286
86Montgomery County10,214$63,666$142,131
87Union County11,993$57,772$157,377
87Des Moines County38,487$62,928$145,501
89Franklin County9,956$59,894$155,096
91Fayette County19,288$60,165$152,872
91Wapello County35,362$64,766$127,723
91Audubon County5,599$58,229$155,863
93Decatur County7,759$59,044$154,886
93Keokuk County9,924$62,329$144,716
95Wayne County6,532$61,964$140,437
96Lee County32,893$62,382$120,739
97Page County15,131$57,953$147,055
98Pocahontas County7,046$61,875$103,731
99Appanoose County12,184$54,934$111,977

Source: U.S. Census ACS + Zillow via Saturday Night Science. All 99 Iowa counties.

Summary

Summary: The Richest Counties In Iowa For 2026

Living in Iowa can vary from one part of the state to the next, with pretty extreme variance in home prices and incomes across counties.

The richest counties in Iowa are Dallas County, Madison County, Warren County, Mills County, Sioux County, Benton County, Polk County, Winneshiek County, Plymouth County, and Bremer County.

Now you know the parts of the state where Goodwill will have the best goodies, and that’s what you came here to learn at the end of the day.

You are welcome.

Keep reading

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Chris Kolmar
About the author

Chris Kolmar has been in the real estate business for almost ten years now. He originally worked for Movoto Real Estate as the director of marketing before founding HomeSnacks.

He believes the key to finding the right place to live comes down to looking at the data, reading about things to do, and, most importantly, checking it out yourself before you move.

If you've been looking for a place to live in the past several years, you've probably stumbled upon his writing already.

You can find out more about him on LinkedIn or his website.

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