This report is one of a group of five reports presenting data for persons of Spanish surname in the standard metropolitan statistical areas (SMSA's) of the five southwestern states (report PC(S1)-57 for Arizona; report PC(S1)-58 for California; report PC(S1)-59 for Colorado; report PC(S1)-60 for New Mexico; and report PC(S1)-61 for Texas).
This report presents information on persons of Spanish surname living in census tracts of 400 or more persons of Spanish surname within SMSA's in the state of Arizona on April 1, 1970. It supplements the previously published 1970 census reports, Series PHC(1 ), Census Tracts, in which data were presented for the combined group "Persons of Spanish language or Spanish surname." In that group, persons of Spanish surname were combined with persons who were not of Spanish surname but who were of Spanish mother tongue or were living in families in which the head or wife reported Spanish as his or her mother tongue.
Census statistics date back to 1790 and reflect the growth and change of the United States. Past census reports contain some terms that today’s readers may consider obsolete and inappropriate. As part of our goal to be open and transparent with the public, we are improving access to all Census Bureau original publications and statistics, which serve as a guide to the nation's history.