Abstract: Iron Deficiency Anaemia (IDA) is a major public health problem in developing countries especially among pregnant women. This study was done on some of the factors that predispose pregnant women to IDA and so identify groups at greater risk. A total of 1387 pregnant women (910 in the urban area and 477 in the rural areas) were recruited for the study. IDA was assessed by measuring haemoglobin (Hb) concentration and the pregnant women were considered anaemic for Hb less than 11g/dl according to World Health Organization Standards. Semi structured questionnaires were used to elicit information on possible predisposing factors such as age, level of education, parity, child-spacing etc. Results obtained showed that mean Hb of the rural subjects, 9.84±1.41g/dl was significantly (p<0.0001) lower than that of the urban subjects, 10.44±1.49g/dl. Analysis of the effect of age showed that the younger age category (24 years and below) had significantly (p<0.0461) lower mean Hb and significantly (p<0.0332) higher percentage of anaemia while the effect of level of education showed significantly (p<0.0136) lower mean Hb and higher proportion of anaemia among the less educated (no formal and primary education). The pregnant women with child spacing of less than 1 year and 1-1.5 years had significantly (p<0.0223) lower mean Hb and significantly (p<0.0336) higher prevalence of anaemia while parity did not show any significant effect on both mean Hb and prevalence of Hb. The implications of these findings are discussed and recommendations made on how to tackle the problem.