Immigration Trends

Suffolk County (NY)

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

217,061 foreign-born residents on file this year

Italy

53,996

Germany

34,354

United Kingdom

20,785

Ireland (Eire)

18,106

Poland

15,913

1950

44,744 foreign-born residents on file this year

Germany

7,604

Italy

6,882

Ireland (Eire)

4,022

Poland

3,967

The U.S.S.R.

3,070

1940

38,783 foreign-born residents on file this year

Germany

6,095

Italy

5,021

Poland

4,170

Irish Free State (Eire)

3,656

Russia (U.S.S.R.)

2,896

1930

34,634 foreign-born residents on file this year

Germany

6,056

Italy

4,171

Poland

4,165

Irish Free State

3,388

England

2,516

1920

23,910 foreign-born residents on file this year

Germany

3,793

Ireland

3,503

Poland

2,772

Italy

2,698

Russia

2,544

1910

22,412 foreign-born residents on file this year

Germany

4,426

Ireland

4,218

Russia

3,708

Italy

2,227

Austria

1,856

1900

18,041 foreign-born residents on file this year

Ireland

4,154

Germany

3,542

Other Colored >> Female

1,712

Other Colored >> Male

1,572

England

1,423