St. Augustine South CDP, FL Population By Ancestry in 2021 (ACS-5Yrs)

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, among the 5.35K St. Augustine South CDP, FL population, 1.79K had Unclassified ancestry (33.34%), 746 had Other Groups ancestry (13.93%), and 728 had Irish ancestry (13.60%).

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 Florida cities and places, and for Florida.

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

Data Source: US Census Bureau.

St. Augustine South CDP, FL Percentage of Ancestry Population in 2021

Unclassified

Other Groups

Irish

German

Italian

English

European

American

French (except Basque)

Welsh

St. Augustine South CDP, FL Population By Ancestry in 2021

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Ancestry	Population	Percent of Pop. (%)
Unclassified	1785	33.34
Other Groups	746	13.93
Irish	728	13.60
German	654	12.22
Italian	605	11.30
English	465	8.69
European	406	7.58
American	330	6.16
French (except Basque)	271	5.06
Welsh	133	2.48
Scottish	92	1.72
Greek	90	1.68
Polish	81	1.51
Belgian	72	1.35
Ukrainian	61	1.14
Austrian	56	1.05
Swiss	45	0.84
Canadian	41	0.77
Scotch Irish	38	0.71
Dutch	36	0.67
Eastern European	28	0.52
Swedish	27	0.50
British	23	0.43
Norwegian	15	0.28
French Canadian	12	0.22
Lebanese	11	0.21
Czech	11	0.21
Finnish	9	0.17
Romanian	2	0.04
Russian	1	0.02