<p>Of 3540 children considered, 24.2% (95% confidence interval CI 23.4–25.05%) had malaria infection. The prevalence of malaria infection seems to increase with age. This variable is statistically associated with the prevalence of malaria infection among under-five children, under-five child’s age, maternal education, sex of household head, household wealth index, place of residence, and wards where mother–child pair lives. Children whose mothers have secondary education have about 56% lower risk (odds ratio=0.44; 95% CI 0.40–0.48) of malaria infection and 73% lower (odds ratio=0.37; 95% CI 0.32–0.43) among children living in the richest households, compared to children living in the poorest households.</p>