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Which Mexicans Are White? Enumerator-Assigned Race in the 1930 Census and the Socioeconomic Integration of Mexican Americans

Author

Listed:
  • Brian Duncan
  • Stephen J. Trejo

Abstract

The authors explore unique complete-count data from the 1930 Census in which a respondent’s race was assigned by enumerators and “Mexican†was one of the possible responses. Census enumerators frequently and selectively assigned a non-Mexican race—predominantly “white†—to US-born individuals of Mexican ancestry. As a result, using enumerator-assigned race to identify Mexican Americans misses a sizeable fraction of the relevant population and significantly understates this group’s socioeconomic attainment. The propensity for Census enumerators to identify Mexican Americans as white varied enormously across US counties, and this variation is strongly associated with both the educational attainment of US-born Mexican Americans observed in the 1940 Census and the amount of return migration by Mexican immigrants during the 1930s. As such, this variation may help to identify local environments that were more favorable for the integration of Mexican Americans.

Suggested Citation

  • Brian Duncan & Stephen J. Trejo, 2025. "Which Mexicans Are White? Enumerator-Assigned Race in the 1930 Census and the Socioeconomic Integration of Mexican Americans," ILR Review, Cornell University, ILR School, vol. 78(1), pages 62-85, January.
    • Handle: RePEc:sae:ilrrev:v:78:y:2025:i:1:p:62-85
    DOI: 10.1177/00197939231213055
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