Ranking of Indiana Counties By Population with Scotch Irish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 51.02K people in Indiana with Scotch Irish ancestry. Among all Indiana counties, Marion County had the highest population with Scotch Irish ancestry (6.46K), followed by Hamilton County (3.19K), and Lake County (2.43K).

The chart and table below shows the top 10 counties with high number of people with Scotch Irish ancestry.

You can see similar information for other states and for other ancestry groups in Indiana.

Data Source: US Census Bureau.
Ranking of Indiana Counties By Population with Scotch Irish Ancestry in 2021
Marion County
Hamilton County
Lake County
Allen County
St. Joseph County
Monroe County
Vanderburgh County
Porter County
Clark County
Johnson County
Ranking of Indiana Counties By Population with Scotch Irish Ancestry in 2021
0 of 0
Rank County Population
1 Marion County 6462
2 Hamilton County 3191
3 Lake County 2430
4 Allen County 2219
5 St. Joseph County 1948
6 Monroe County 1781
7 Vanderburgh County 1548
8 Porter County 1489
9 Clark County 1345
10 Johnson County 1253
11 Hendricks County 1204
12 Madison County 1143
13 Tippecanoe County 1127
14 Boone County 1020
15 Bartholomew County 960
16 Kosciusko County 958
17 Vigo County 878
18 LaPorte County 840
19 Floyd County 772
20 Elkhart County 758
21 Delaware County 707
22 Hancock County 632
23 Lawrence County 585
24 Grant County 576
25 Shelby County 558
26 Morgan County 555
27 Howard County 537
28 Dearborn County 504
29 Wayne County 498
30 Montgomery County 496
31 Jefferson County 478
32 Henry County 467
33 Randolph County 450
34 Jay County 399
35 Gibson County 388
36 Jackson County 387
37 Noble County 382
38 Marshall County 369
39 Jennings County 355
40 Knox County 322
41 Jasper County 292
42 Warrick County 285
43 LaGrange County 278
44 Huntington County 275
45 Daviess County 270
46 Wabash County 265
47 Putnam County 248
48 Harrison County 244
49 Whitley County 233
50 Clinton County 231
51 Miami County 222
52 Sullivan County 221
53 Scott County 220
54 DeKalb County 218
55 Rush County 207
56 Posey County 203
57 Ripley County 201
58 Adams County 191
59 Greene County 186
60 Decatur County 183
60 Steuben County 183
61 Cass County 175
62 Fountain County 173
63 Orange County 156
64 Wells County 154
65 Clay County 153
66 Pike County 150
67 Fayette County 146
68 Tipton County 139
69 Washington County 132
70 Vermillion County 124
71 Dubois County 122
72 Crawford County 121
73 Spencer County 116
73 Switzerland County 116
74 Starke County 111
75 Owen County 97
76 Carroll County 96
77 Fulton County 95
77 White County 95
78 Franklin County 93
78 Pulaski County 93
79 Warren County 87
80 Blackford County 64
81 Brown County 63
82 Parke County 62
83 Martin County 50
84 Ohio County 45
85 Newton County 44
86 Union County 42
87 Benton County 39
87 Perry County 39