The number of malaria cases in the under 5, 5-14 and above 15 years age groups in three districts in the Midlands Province were studied over a period of one year, from January to December 2003.The total number of malaria cases in all the three age groups were significantly different in all the districts (p<0.05). Gokwe had the highest number of cases in the all the age categories (p<0.05). The malarial cases tended to be highly seasonal in Gokwe but to a lesser extent in Kwekwe. There was a high monthly variation of malarial cases in Gweru. Although the >15 years age group had the highest number of cases, the number of cases in the under five age group is a cause for concern. Plasmodium falciparum had a prevalence of >86% in all the districts during the rainy season. The implications of these findings are discussed in relation to the health and socio-economics of the three districts.