The aim of this study was to assess the plantar arch index among residents in ovia northeast L.G.A and to determine the prevalence of pes planus. A total of 380 subjects comprising of 194 males and 186 females aged 16-35 years were used for the study. The dynamic footprints of the subjects were obtained using endorsing ink and plain duplicating paper. The plantar arch index was determined as the ratio of the mid arch width to the mid heel width from the foot prints. Descriptive statistics for each variable included mean and standard deviation(SD). Mean 2SD was regarded as normal but greater than that that was considered as pes planus. After results were analyzed, a total of 60 males and 53 females had pes planus. The overall prevalence of pes planus was 29.72% with a prevalence of 15.78% among males and 13.94% among females. Bilateral pes planuswas commoner among males 4(1.05%) than females 2(0.52%). The results showed that the prevalence of pes planus was higher(P<0.05) among males than females in our study. 0(0%)cases of Pes Cavus was reported in this research,74(19.47%) males were normal, they didn’t have Pes planus or Pes Cavus, 100(26.317%) were normal, they didn’t have Pes planus or Pes Cavus,.