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Investigating the Overlooked

Region What Who For Analysis
Immigration Trends
Sonoma County (CA)
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
37,899 foreign-born residents on file this year
Italy
6,991
Germany
5,022
United Kingdom
3,903
Canada
3,370
Switzerland
1,779
1950
12,620 foreign-born residents on file this year
Italy
2,650
Other
1,612
Germany
1,264
Other European Countries
961
Canada - other
880
1940
11,669 foreign-born residents on file this year
Italy
2,910
Other
1,416
Germany
1,307
Switzerland
688
Canada (other)
604
1930
11,611 foreign-born residents on file this year
Italy
3,175
Germany
1,660
Switzerland
843
Canada
718
England
712
1920
10,836 foreign-born residents on file this year
Italy
2,843
Germany
1,542
Switzerland
879
Canada
727
England
684
1910
11,182 foreign-born residents on file this year
Italy
2,715
Germany
1,969
Switzerland
920
Ireland
823
Canada
777
1900
9,350 foreign-born residents on file this year
Germany
1,538
Italy
1,266
Other Colored >> Male
913
Ireland
910
Switzerland
793