Religion, religiousness and fertility in the US and in Europe

This article aims to assess the role of religion and religiousness in engendering higher US fertility compared to Europe. Religion is important in the life of one-half of US women, whereas not even for one of six Europeans. By every available measure, American women are more religious than European women. Catholic and Protestant women have notably higher fertility than those not belonging to any denomination in the US and across Europe. In all European regions and in the United States as well as among all denominations the more devout have more children. However, women in Northern and Western Europe who are the least religious have equivalent or even higher fertility than women in the US, and notably higher fertility than those in Southern Europe. This suggests that forces other than religion and religiousness are also important in their impact on childbearing. A multivariate analysis demonstrates that relatively traditional socio-economic covariates (age, marital status, residence, education, and income) do not substantially change the positive association of religiousness and fertility. Finally, if Europeans were as religious as Americans one might theoretically expect a small fertility increase for Europe as a whole, but considerably more for Western Europe.