FIELD CODE DESCRIPTION AND SOURCE
NOMMUN county name, from INEGI census
P5_MAS population greater than 5 years old, from INEGI census
P5_HLI population greater than 5 years old speaking indigenous language, from INEGI census
NOMLOC localidad name, from INEGI census
INDIG percentage indigenous speakers, by dividing P5_HLI from P5_MAS
NUCAG_NOM nucleo agrario name, from PROCEDE booklet (when close match found with NOMLOC)
PROCEDE_NA "SI" indicates NOMLOC matches NUCAG_NOM almost exactly
PROCEDE_AH "SI" indicates NOMLOC matches at least one asentamiento humano in PROCEDE booklet almost exactly
Because it includes small groupings of houses, farmsteads, military bases, and other features, the universe of INEGI localidades is larger than the universe of nucleos agrarios (potential or actual PROCEDE-surveyed communities). Therefore, a localidad listed as "not surveyed by PROCEDE" does not necessarily mean it was ever eligible for PROCEDE survey work. This discrepency may be reduced, but not eliminated, by discarding all localidades below a chosen population threshold.
Mexico Indigena decided case by case whether each INEGI localidad name was a close enough match to each PROCEDE nucleo agrario (or asentamiento humano) name. Approximately 5 per cent of the matches may be uncertain.