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Mother's state of birth, US

Codes and Frequencies

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MBPL indicates the U.S. state or territory where the person reported his/her mother was born. For details on the foreign birthplaces refer to variable MBPL.


The codes for MBPLUS are the same as BPLUS, and are compatible with IPUMS birthplace variables.


  • United States 1880a: All persons
  • United States 1880b: All persons
  • United States 1900: All persons
  • United States 1910: All persons


  • United States: 1880a, 1880b, 1900, 1910