Ranking of Iowa Counties By Non-Hispanic White Alone Population Aged 25 years and above with an Educational attainment of Some College or Associates Degree in 2021 (ACS-5Yrs)

Updated on September 5, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, the Iowa Non-Hispanic White Alone population (aged 25 years and above) who had an educational attainment of Some College or Associates Degree was 620,801. Among all Iowa counties, Polk County had the highest Non-Hispanic White Alone population (aged 25 years and above) with an educational attainment of Some College or Associates Degree (80,506), followed by Linn County (48,060), and Scott County (32,359).

The chart below shows the top 10 Iowa counties, and the table below shows the ranking of all Iowa counties.

You can see similar information for other educational attainments, and for other races and ethnicities.

You can also see similar information for other states and for the United States.

Ranking of Iowa Counties By Non-Hispanic White Alone Population (Aged 25yrs+) with an Educational Attainment of Some College or Associates Degree in 2021
Polk County
Linn County
Scott County
Black Hawk County
Pottawattamie County
Johnson County
Woodbury County
Dubuque County
Dallas County
Story County
Ranking of Iowa Counties By Non-Hispanic White Alone Population (Aged 25yrs+) with an Educational Attainment of Some College or Associates Degree in 2021
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Rank County Number of People
1 Polk County 80506
2 Linn County 48060
3 Scott County 32359
4 Black Hawk County 23187
5 Pottawattamie County 20162
6 Johnson County 19110
7 Woodbury County 18002
8 Dubuque County 17736
9 Dallas County 14705
10 Story County 13804
11 Warren County 11040
12 Cerro Gordo County 10324
13 Clinton County 10088
14 Des Moines County 9351
15 Jasper County 8838
16 Webster County 8211
17 Lee County 8158
18 Muscatine County 7917
19 Marshall County 6989
20 Wapello County 6897
21 Boone County 6699
22 Sioux County 6316
23 Marion County 6227
24 Benton County 6176
25 Plymouth County 5677
26 Carroll County 5120
27 Bremer County 5050
28 Jones County 4977
29 Buchanan County 4973
30 Dickinson County 4670
31 Washington County 4521
32 Cedar County 4473
33 Henry County 4430
34 Mahaska County 4416
35 Hardin County 4281
36 Fayette County 4232
37 Jackson County 4201
38 Clay County 4131
39 Madison County 4095
40 Winneshiek County 4066
41 Kossuth County 3977
42 Iowa County 3840
43 Butler County 3779
44 Page County 3709
45 Clayton County 3582
46 Delaware County 3561
47 Hamilton County 3556
48 Tama County 3460
49 Floyd County 3447
50 Mills County 3399
51 Harrison County 3314
52 Cass County 3131
53 Grundy County 3041
54 Appanoose County 3031
55 Allamakee County 3025
56 Poweshiek County 2993
57 O'Brien County 2956
58 Wright County 2943
59 Jefferson County 2939
60 Union County 2852
61 Shelby County 2819
62 Guthrie County 2791
63 Buena Vista County 2718
64 Montgomery County 2655
65 Sac County 2591
66 Winnebago County 2570
67 Mitchell County 2567
68 Crawford County 2560
69 Lyon County 2543
70 Hancock County 2538
71 Humboldt County 2434
72 Cherokee County 2418
72 Chickasaw County 2418
72 Franklin County 2418
73 Palo Alto County 2393
74 Calhoun County 2339
74 Emmet County 2339
75 Monona County 2290
76 Keokuk County 2285
77 Louisa County 2170
78 Greene County 2075
79 Howard County 2062
80 Lucas County 2060
81 Worth County 1932
82 Fremont County 1801
83 Adair County 1791
84 Pocahontas County 1724
85 Davis County 1702
86 Monroe County 1660
87 Van Buren County 1633
88 Clarke County 1615
89 Ida County 1532
90 Taylor County 1410
91 Audubon County 1375
92 Wayne County 1352
93 Osceola County 1349
94 Decatur County 1144
95 Ringgold County 1062
96 Adams County 956