Ranking of Oklahoma Counties By Percentage of Population with Irish Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 392.54K people in Oklahoma with Irish ancestry (9.94% of Oklahoma population). Among all Oklahoma counties, McIntosh County had the highest percentage of its population with Irish ancestry (18.34%), followed by Latimer County (17.03%), and Nowata County (16.54%).

The chart and table below shows the top 10 counties with high percentage of its population having Irish ancestry.

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

Data Source: US Census Bureau.
Ranking of Oklahoma Counties By Percentage of Population with Irish Ancestry in 2021
McIntosh County
Latimer County
Nowata County
Garvin County
Cotton County
Ellis County
Johnston County
Pittsburg County
Marshall County
Roger Mills County
Ranking of Oklahoma Counties By Percentage of Population with Irish Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 McIntosh County 18.34
2 Latimer County 17.03
3 Nowata County 16.54
4 Garvin County 16.25
5 Cotton County 15.97
6 Ellis County 15.95
7 Johnston County 15.18
8 Pittsburg County 14.93
9 Marshall County 14.62
10 Roger Mills County 14.52
11 Kiowa County 14.01
12 Harper County 13.85
13 Haskell County 13.65
14 Coal County 13.58
15 Greer County 13.54
16 Pontotoc County 13.51
17 Mayes County 13.40
18 Washita County 13.07
19 Pawnee County 13.02
20 Craig County 12.91
21 Atoka County 12.69
22 Jefferson County 12.60
22 Pushmataha County 12.60
23 Beaver County 12.45
24 Wagoner County 12.13
25 Le Flore County 12.11
26 Logan County 12.09
27 Dewey County 11.94
28 Noble County 11.88
29 Tillman County 11.56
30 Delaware County 11.51
31 Stephens County 11.45
32 Carter County 11.42
33 Alfalfa County 11.28
34 Osage County 11.26
35 Rogers County 11.18
36 Creek County 11.12
37 Bryan County 11.10
38 Washington County 11.04
39 Garfield County 10.95
40 Custer County 10.76
41 Cleveland County 10.75
42 Payne County 10.71
43 Kay County 10.70
44 Ottawa County 10.42
45 Lincoln County 10.37
46 Love County 10.20
47 Comanche County 9.93
48 Caddo County 9.90
49 Tulsa County 9.68
50 Pottawatomie County 9.58
51 Grant County 9.46
52 Okmulgee County 9.44
53 McClain County 9.40
54 Beckham County 9.27
55 Canadian County 9.25
56 Major County 9.21
57 Grady County 9.11
58 Kingfisher County 8.98
59 Choctaw County 8.84
60 Woodward County 8.56
61 Murray County 8.53
62 Blaine County 8.47
62 Cherokee County 8.47
63 Seminole County 8.43
64 Oklahoma County 7.94
65 Jackson County 7.91
66 Muskogee County 7.71
67 McCurtain County 7.33
68 Woods County 7.26
69 Sequoyah County 6.96
70 Okfuskee County 6.21
71 Texas County 5.73
72 Harmon County 5.16
73 Adair County 4.92
74 Cimarron County 4.71
75 Hughes County 4.64