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Investigating the Overlooked

Region What Who For Analysis
Immigration Trends
Allegheny County (PA)
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
477,564 foreign-born residents on file this year
Italy
83,893
Germany
60,606
Poland
56,665
United Kingdom
51,145
Czechoslovakia
43,336
1950
142,923 foreign-born residents on file this year
Italy
26,289
Poland
15,507
Czechoslovakia
14,547
Austria
11,856
Germany
11,505
1940
179,709 foreign-born residents on file this year
Italy
30,546
Poland
20,990
Austria
17,515
Germany
17,489
Czechoslovakia
16,478
1930
227,536 foreign-born residents on file this year
Italy
34,039
Poland
29,307
Czechoslovakia
29,224
Germany
25,439
England
14,410
1920
248,581 foreign-born residents on file this year
Poland
29,781
Italy
29,122
Germany
28,856
Austria
24,218
Russia
20,446
1910
272,174 foreign-born residents on file this year
Austria
53,590
Germany
49,113
Russia
39,066
Italy
26,914
Ireland
26,721
1900
219,507 foreign-born residents on file this year
Germany
52,560
Ireland
32,013
England
20,778
Austria
17,384
Other Colored >> Male
15,895