Montgomery 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 608.00K Montgomery County, TX population, 213.18K had Other Groups ancestry (35.06%), 144.73K had Unclassified ancestry (23.80%), and 82.66K had German ancestry (13.60%).

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.

Montgomery County, TX Percentage of Ancestry Population in 2021

Other Groups

Unclassified

German

English

Irish

American

French (except Basque)

Italian

European

Scottish

Montgomery County, TX Population By Ancestry in 2021

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Ancestry	Population	Percent of Pop. (%)
Other Groups	213178	35.06
Unclassified	144727	23.80
German	82657	13.60
English	71544	11.77
Irish	54360	8.94
American	36318	5.97
French (except Basque)	24541	4.04
Italian	18711	3.08
European	11347	1.87
Scottish	11320	1.86
Polish	10829	1.78
Scotch Irish	8267	1.36
Swedish	5929	0.98
Dutch	5916	0.97
Subsaharan African	4698	0.77
British	4489	0.74
Czech	4092	0.67
Norwegian	3999	0.66
Welsh	3636	0.60
Russian	2096	0.35
Scandinavian	2022	0.33
French Canadian	1951	0.32
Portuguese	1796	0.30
African	1741	0.29
Nigerian	1652	0.27
Greek	1537	0.25
Canadian	1478	0.24
West Indian (except Hispanic groups)	1399	0.23
Romanian	1383	0.23
Hungarian	1333	0.22
Brazilian	1178	0.19
Swiss	1174	0.19
Danish	1057	0.17
Ukrainian	1005	0.17
Austrian	874	0.14
Cajun	798	0.13
Lithuanian	768	0.13
Iranian	667	0.11
Eastern European	661	0.11
Finnish	647	0.11
Croatian	605	0.10
Lebanese	523	0.09
Northern European	473	0.08
Kenyan	469	0.08
Jamaican	434	0.07
Czechoslovakian	426	0.07
Belgian	383	0.06
Slovak	375	0.06
Yugoslavian	374	0.06
Slovene	345	0.06
Egyptian	329	0.05
Arab	321	0.05
Ethiopian	295	0.05
West Indian	282	0.05
Slavic	212	0.04
Trinidadian and Tobagonian	197	0.03
Dutch West Indian	195	0.03
Armenian	189	0.03
Basque	165	0.03
British West Indian	158	0.03
Serbian	151	0.03
Palestinian	143	0.02
Syrian	137	0.02
Australian	130	0.02
Albania	125	0.02
South African	125	0.02
Celtic	120	0.02
Jordanian	111	0.02
Turkish	111	0.02
Guyanese	106	0.02
Maltese	95	0.02
Pennsylvania German	88	0.01
Haitian	68	0.01
Ghanaian	66	0.01
Belizean	65	0.01
Afghan	62	0.01
Macedonian	51	0.01
Bulgarian	46	0.01
Moroccan	36	0.01
Israeli	29	0.01
Latvian	29	0.01
Cape Verdean	28	0.01
Luxembourger	27	0.004
Icelander	19	0.003
Alsatian	18	0.003
Zimbabwean	7	0.001