Collin County, TX Population By Ancestry in 2021 (ACS-5Yrs)

Updated on April 15, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, among the 1.04M Collin County, TX population, 424.05K had Other Groups ancestry (40.78%), 194.88K had Unclassified ancestry (18.74%), and 109.57K had German ancestry (10.54%).

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

You can see similar information for other Texas counties, and for Texas.

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

Data Source: US Census Bureau.

Collin County, TX Percentage of Ancestry Population in 2021

Other Groups

Unclassified

German

English

American

Irish

Italian

Subsaharan African

French (except Basque)

European

Collin County, TX Population By Ancestry in 2021

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Ancestry	Population	Percent of Pop. (%)
Other Groups	424054	40.78
Unclassified	194880	18.74
German	109568	10.54
English	93441	8.99
American	81126	7.80
Irish	78640	7.56
Italian	30364	2.92
Subsaharan African	20371	1.96
French (except Basque)	20137	1.94
European	19706	1.90
Scottish	18852	1.81
Polish	17292	1.66
Scotch Irish	10740	1.03
African	9311	0.90
British	8907	0.86
Swedish	8300	0.80
Norwegian	7614	0.73
Dutch	7110	0.68
Iranian	6325	0.61
Czech	5960	0.57
Welsh	5722	0.55
Russian	5581	0.54
West Indian (except Hispanic groups)	3875	0.37
Nigerian	3707	0.36
French Canadian	3180	0.31
Eastern European	2886	0.28
Danish	2859	0.28
Hungarian	2819	0.27
Ethiopian	2679	0.26
Scandinavian	2578	0.25
Canadian	2280	0.22
Portuguese	2249	0.22
Greek	2248	0.22
Brazilian	2047	0.20
Ukrainian	2040	0.20
Iraqi	1979	0.19
Lebanese	1973	0.19
Romanian	1942	0.19
Austrian	1590	0.15
Jamaican	1475	0.14
Northern European	1461	0.14
Kenyan	1455	0.14
Egyptian	1395	0.13
Albania	1389	0.13
Swiss	1327	0.13
Turkish	1231	0.12
Slovak	1133	0.11
Finnish	1053	0.10
Lithuanian	1028	0.10
Croatian	883	0.09
Palestinian	860	0.08
Arab	854	0.08
Czechoslovakian	843	0.08
West Indian	839	0.08
Yugoslavian	745	0.07
South African	726	0.07
Jordanian	699	0.07
Syrian	613	0.06
Zimbabwean	593	0.06
Belgian	575	0.06
Israeli	558	0.05
Cajun	518	0.05
Haitian	459	0.04
Armenian	456	0.04
Guyanese	445	0.04
Trinidadian and Tobagonian	379	0.04
Ghanaian	378	0.04
Serbian	372	0.04
Afghan	345	0.03
Slovene	300	0.03
Moroccan	288	0.03
Slavic	257	0.03
Dutch West Indian	257	0.03
Bulgarian	255	0.03
Australian	237	0.02
Pennsylvania German	200	0.02
Latvian	173	0.02
Belizean	168	0.02
Celtic	137	0.01
Icelander	126	0.01
New Zealander	110	0.01
Basque	109	0.01
Barbadian	106	0.01
Estonian	97	0.01
Bahamian	97	0.01
British West Indian	86	0.01
Macedonian	66	0.01
Cape Verdean	63	0.01
German Russian	59	0.01
Somali	49	0.01
Luxembourger	45	0.004
Sudanese	42	0.004
Bermudan	35	0.003
Soviet Union	32	0.003
Sierra Leonean	31	0.003
Alsatian	17	0.002
Ugandan	15	0.001
Liberian	14	0.001
Carpatho Rusyn	11	0.001
Maltese	10	0.001