Ranking of Florida 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 1.76M people in Florida with Irish ancestry (8.26% of Florida population). Among all Florida counties, Gilchrist County had the highest percentage of its population with Irish ancestry (16.80%), followed by Martin County (16.35%), and Sumter County (14.94%).

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 Florida.

Data Source: US Census Bureau.
Ranking of Florida Counties By Percentage of Population with Irish Ancestry in 2021
Gilchrist County
Martin County
Sumter County
Citrus County
Indian River County
Brevard County
Santa Rosa County
Calhoun County
Hernando County
Columbia County
Ranking of Florida Counties By Percentage of Population with Irish Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Gilchrist County 16.80
2 Martin County 16.35
3 Sumter County 14.94
4 Citrus County 13.85
5 Indian River County 13.54
6 Brevard County 13.13
7 Santa Rosa County 13.05
8 Calhoun County 12.98
8 Hernando County 12.98
9 Columbia County 12.65
10 St. Johns County 12.53
11 Pinellas County 12.51
12 Franklin County 12.44
12 Levy County 12.44
13 Okaloosa County 12.36
14 Charlotte County 12.34
15 Pasco County 12.24
16 Manatee County 12.06
17 Bay County 11.85
18 Clay County 11.73
19 Sarasota County 11.58
20 Walton County 11.55
21 Wakulla County 11.29
22 Baker County 11.15
23 Bradford County 11.11
23 Lake County 11.11
24 Marion County 11.10
25 Monroe County 11.06
26 Lee County 10.75
27 Okeechobee County 10.74
28 Collier County 10.72
29 Flagler County 10.62
30 Putnam County 10.45
31 Seminole County 10.39
32 Dixie County 10.36
33 Nassau County 10.33
34 Escambia County 10.16
35 Liberty County 9.95
36 Washington County 9.87
37 Union County 9.84
38 Volusia County 9.83
39 Highlands County 9.56
40 St. Lucie County 9.49
41 Alachua County 9.36
42 Jefferson County 8.87
43 Gulf County 8.80
44 Glades County 8.55
45 Leon County 8.28
46 Palm Beach County 8.25
47 Duval County 7.99
48 Taylor County 7.67
49 Hillsborough County 7.65
50 Suwannee County 7.57
51 DeSoto County 6.98
52 Polk County 6.90
53 Madison County 5.92
54 Orange County 5.81
55 Holmes County 5.71
56 Hardee County 5.57
57 Jackson County 5.35
58 Broward County 5.26
59 Gadsden County 4.81
60 Osceola County 4.72
61 Lafayette County 4.58
62 Hamilton County 4.29
63 Hendry County 3.70
64 Miami-Dade County 1.21