Dayton 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 463 Dayton CDP, IL population, 205 had German ancestry (44.28%), 178 had Irish ancestry (38.45%), and 81 had Other Groups ancestry (17.50%).

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.

Dayton CDP, IL Percentage of Ancestry Population in 2021

German

Irish

Other Groups

Unclassified

Polish

Norwegian

English

French (except Basque)

Scotch Irish

Dutch

Dayton CDP, IL Population By Ancestry in 2021

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Ancestry	Population	Percent of Pop. (%)
German	205	44.28
Irish	178	38.45
Other Groups	81	17.50
Unclassified	61	13.18
Polish	40	8.64
Norwegian	38	8.21
English	20	4.32
French (except Basque)	10	2.16
Scotch Irish	10	2.16
Dutch	9	1.94
Croatian	8	1.73
Swedish	8	1.73
Eastern European	7	1.51
Italian	7	1.51
Scottish	6	1.30
American	5	1.08
Portuguese	4	0.86
Slavic	4	0.86