Synonymy, taxonomic references, ecological summary, and distributions are presented for 69 species of cockroaches recorded from North America north of Mexico. Twenty-four of these species have been introduced from other areas. Euthlastoblatta diaphana (F.), Arenivaga rehni Hebard, Holocompsa azteca Saussure and Ischnoptera rufa occidentalis Saussure have been listed from the United States by previous authors but probably do not occur here. Nauphoeta cinerea (Olivier) was introduced into Florida, but the infestation apparently did not persist. Neostylopyga rhombifolia (Stoll) has been intercepted numerous times in the southwest but it may not actually be established. Ischnoptera nox Hebard, established in southern Florida, is reported for the first time from the United States. Maps are included for 49 species.