Immigration Trends

Middlesex County (NJ)

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

161,775 foreign-born residents on file this year

Poland

28,430

Italy

25,013

Hungary

22,403

Germany

14,578

U.S.S.R.

11,931

1950

39,325 foreign-born residents on file this year

Hungary

8,188

Poland

6,495

Italy

4,689

The U.S.S.R.

3,281

Germany

3,041

1940

43,050 foreign-born residents on file this year

Hungary

9,654

Poland

7,346

Italy

4,995

Russia (U.S.S.R.)

3,473

Germany

3,381

1930

53,373 foreign-born residents on file this year

Poland

9,719

Hungary

9,504

Czechoslovakia

6,089

Italy

5,479

Russia

4,398

1920

49,198 foreign-born residents on file this year

Hungary

12,173

Poland

8,310

Austria

5,674

Russia

4,885

Italy

4,338

1910

40,161 foreign-born residents on file this year

Hungary

11,336

Russia

6,772

Austria

5,903

Germany

4,800

Ireland

2,959

1900

24,814 foreign-born residents on file this year

Germany

4,687

Ireland

4,061

Hungary

3,926

Denmark

1,811

Austria

1,422