Compared with the 1920 Census, the 1950 Census contains a less detailed focus on information about immigrants. Following the Immigration Act of 1924 the number of new immigrants fell sharply. Nevertheless, the reports still provide a substantial amount of information about ethnicity.
There is also an excellent and very detailed special report among the 1950 Census publications that deals exclusively with the national origin and race of the population - Volume 4, Special Reports, Part 3, National Origin and Race. It contains detailed tables on the national origins of the populations of large cities, including several in New Jersey.
State-Level Data: Volume II. Part 1. Characteristics of the Population, 1950. United States Summary - See especially the following tables:
Table 59, 167 - Nativity of the white population
Table 65 - Nativity
Table 71 - Country of birth of foreign-born white
State-Level Data: Volume II. Part 30. Characteristics of the Population, 1950. New Jersey - See especially the following tables:
Table 17, 34 - General nativity
Table 53 - Nativity of the white population and race
Table 54 - Nativity, by color
County-Level Data: Volume II. Part 30. Characteristics of the Population, 1950. New Jersey - See especially the following tables:
Table 43, 48 - General nativity
Table 42a - Nativity by country of origin
Standard Metropolitan Areas and Cities of 100,000 or More
Volume II. Part 1. Characteristics of the Population, 1950. United States Summary - See especially the following tables:
Table 177 - Nativity of the white population and race
Volume II. Part 30. Characteristics of the Population, 1950. New Jersey - See especially the following tables:
Table 38 - Nativity
Table 53 - Nativity of the white population and race
