Immigration Trends

Plymouth County (MA)

Top countries of origin for this county's foreign-born population, decade by decade, 1900-1960 -- the same IPUMS NHGIS census tables behind Population Trends, read for country-of-birth instead of race. No comparable county-level series exists past 1960 in this data (same real gap Population Trends names for its own 1960-2023 span).

1960

78,485 foreign-born residents on file this year

Canada

20,276

Italy

11,636

United Kingdom

8,878

Ireland (Eire)

8,647

Portugal

4,903

1950

22,657 foreign-born residents on file this year

Canada - other

4,391

Italy

3,577

Lithuania

1,839

Ireland (Eire)

1,721

Sweden

1,502

1940

25,944 foreign-born residents on file this year

Canada (other)

4,941

Italy

4,211

Irish Free State (Eire)

2,244

Sweden

2,086

Lithuania

1,863

1930

30,920 foreign-born residents on file this year

Canada

7,665

Italy

4,576

Irish Free State

3,289

Sweden

2,692

Lithuania

2,090

1920

34,516 foreign-born residents on file this year

Canada

7,742

Ireland

4,788

Italy

4,742

Sweden

2,983

Russia

2,349

1910

41,598 foreign-born residents on file this year

Canada

8,369

Ireland

6,266

Canada (other)

6,026

Russia

4,278

Italy

3,411

1900

23,227 foreign-born residents on file this year

Ireland

6,304

Canada (English)

5,085

Sweden

2,393

England

1,917

Canada (French)

1,552