Religion has acted as a brake on demographic transition in a number of hist
orical and contemporary populations. In a study in two rural areas of Zimba
bwe, we found substantial differences in recent demographic treads between
Mission and Independent or 'Spirit-type' churches. Birth rates are higher i
n some Spirit-type churches and, until recently, infant mortality was also
higher. Recent increases in mortality were seen within Mission churches but
not in Spirit-type churches, Missiological and ethnographic data indicate
that differences in religious teaching on healthcare-seeking and sexual beh
aviour and differences in church regulation could explain this contrast in
demographic patterns. More restrictive norms on alcohol consumption and ext
ra-marital relationships in Spirit-type churches may limit the spread of HI
V and thereby reduce its impact an mortality. These contrasting trends will
influence the future religious and demographic profile of rural population
s in Zimbabwe.