Coccidiosis is an important enteric parasitic protozoan disease of poultry. The disease is usually associated with high economic losses to poultry farmers worldwide. This study was conducted to determine the prevalence of coccidiosis, identify the species of circulating Eimeria species, determine the prevalence of Eimeria in respect to breed and gender and determine the deviation of infected birds from normal range of birds slaughtered in Lafia modern market, Nasarawa State, Nigeria. Out of the 204 examined chickens, 36.3% (74/204) of them harbored different Eimeria species. A total of 32.6% (44/74) male and 43.5 (30/74) female were infected. Statistically, no significant difference p>0.05 (χ2=1.559, p=0.2118) was noted between the male and female. Among the local breed, 40.2% (49/74) was infected and for the broilers, 30.5% (25/74) was positive for coccidial infection. Again, there was no statistically significant difference p>0.05 (χ2=1.324, p=0.25) between the local and broiler breeds. In the attempt made to identify the prevalent species of coccidian in the study area, five Eimerian species were identified, namely; Eimeria acervulina, Eimeria brunette, Eimeria mitis, Eimeria necatrix and Eimeria tenella with the prevalence of 14.22%, 5.88%, 1.47%, 6.86%, and 7.84% respectively. Results obtained from this study shows that coccidiosis is an important disease of chickens in the study area and further strategy needs to be implemented to reduce the infection rate of coccidiosis.