Frankfort Square CDP, IL Population By Ancestry in 2021 (ACS-5Yrs)

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, among the 9.21K Frankfort Square CDP, IL population, 2.70K had Irish ancestry (29.35%), 1.85K had Unclassified ancestry (20.02%), and 1.83K had German ancestry (19.88%).

The chart below shows the top 10 ancestry groups, and the table below shows both the population and percentages for many ancestry groups.

You can also see similar information for other Illinois cities and places, and for Illinois.

NB: People could belong to one or more ancestry groups.

Data Source: US Census Bureau.

Frankfort Square CDP, IL Percentage of Ancestry Population in 2021

Irish

Unclassified

German

Polish

Other Groups

Italian

American

Subsaharan African

African

English

Frankfort Square CDP, IL Population By Ancestry in 2021

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Ancestry	Population	Percent of Pop. (%)
Irish	2704	29.35
Unclassified	1845	20.02
German	1832	19.88
Polish	1785	19.37
Other Groups	1396	15.15
Italian	858	9.31
American	467	5.07
Subsaharan African	438	4.75
African	438	4.75
English	336	3.65
Dutch	247	2.68
Swedish	198	2.15
French Canadian	142	1.54
Czech	128	1.39
French (except Basque)	109	1.18
Lithuanian	108	1.17
Scottish	106	1.15
Russian	77	0.84
Welsh	74	0.80
British	61	0.66
Norwegian	61	0.66
Greek	57	0.62
Canadian	52	0.56
Hungarian	50	0.54
Northern European	42	0.46
European	28	0.30
Austrian	23	0.25
Iranian	23	0.25
Slovene	23	0.25
Brazilian	22	0.24
Serbian	19	0.21
Slovak	18	0.20
Scotch Irish	16	0.17
Czechoslovakian	13	0.14
Scandinavian	12	0.13
Croatian	9	0.10
Danish	6	0.07
Eastern European	6	0.07