The aim of the investigation was to determine the prevalence of infection with enteroparasite helminths and to identify some associated factors in Canis familiaris, dog in an urban area of Ica city, in Southern Peru. A cross-sectional study was carried out between November and December 2001 in a number of 162 family dogs (pets) of both sexes, different ages and races, selected by a bistage sampling. Two samples per animal were evaluated by means of direct exam and concentration (Faust and spontaneous sedimentation in test tubes). The general prevalence was 40.12%, for Toxocara canis 19.75%, Ancylostoma caninum 9.26%, Dipylidium caninum 8.64%, Toxascaris leonina 6.17%, and Taenia sp. 4.32%. The sex is not associated to infection for intestinal helminths, being younger than one year p = 0.00000002, OR 9.74 IC 95% (3.75 - 25.72) is the only potential risk factor that has been found for the infection with T. canis.