Sidebar: Does more education lead to less religion?
Some scholars have hypothesized that as education levels increase, many people will shed religious identity and turn to science or other nonreligious sources for answers to life’s most important questions.19 If this secularization theory is accurate, one might expect that countries with higher levels of education would have larger shares of people who do not identify with a religion, and that, on average, religiously unaffiliated people (sometimes called religious “nones”) would have higher levels of education than those who identify with a religion.
This study provides mixed evidence; there is some global data that seems to support secularization theory, but at the country level, the pattern is murky.
At the global level, religiously unaffiliated adults are more highly educated than affiliated adults (as measured by average years of schooling). On average, religiously unaffiliated adults have 1.3 more years of schooling than religiously affiliated adults (8.8 years vs. 7.5 years).
Why do religious “nones” have an educational advantage when viewed at the global level? One reason is that they are disproportionately concentrated in countries with relatively high overall levels of educational attainment. Large shares of the global unaffiliated population reside in highly educated countries such as Japan, South Korea, the United States and the nations of Western Europe. By contrast, relatively few religiously unaffiliated adults live in sub-Saharan Africa, which is the region with the lowest overall level of educational attainment. The global population of religiously affiliated adults shows a different pattern: It is more spread out across countries that have all levels of educational attainment.
Individual countries with high educational attainment also tend to have relatively large shares of religiously unaffiliated adults compared with countries with lower attainment. There are countries that break this pattern, however, and have relatively small shares of unaffiliated adults despite high educational attainment (for example, Georgia and Israel). And China is also a clear outlier: Although educational attainment is relatively modest (7.4 years of schooling, on average), more than half of Chinese adults do not identify with a religious group.
Indeed, when affiliated and unaffiliated adults are compared within countries, religious “nones” do not consistently have an educational advantage, especially among those in the youngest generation.20 There are 76 countries in this study with data on the youngest generation (born 1976 to 1985) of religiously unaffiliated adults. In 32 of those countries, religious “nones” in this generation have a similar number of years of schooling as their religiously affiliated peers (a difference of less than half a year of schooling). In 28 countries, the unaffiliated are less educated than the affiliated by at least half a year of schooling. And in 16 countries, the youngest “nones” are more highly educated than their religiously affiliated compatriots by at least half a year.
In countries where the religiously unaffiliated make up a large share of the population – that is, 20% or more – differences in educational attainment between the youngest cohorts of unaffiliated and affiliated people are often small. For instance, there is a difference of less than half a year of schooling between the two groups in the United States, the United Kingdom, Germany, France, Australia, New Zealand, China, South Korea, Japan and the Czech Republic.
In some countries, there are important educational differences within unaffiliated populations. Although data on the educational attainment of self-described atheists, who make up one category of religious “nones” (along with agnostics and people who describe their religion as “nothing in particular”), was not available for most countries in this report, analysis of survey data collected by Pew Research Center finds that atheists in the United States and France are significantly more likely than adults who say their religion is “nothing in particular” to have post-secondary degrees. But in Germany, Spain, United Kingdom, Australia, Uruguay and China, differences in post-secondary attainment between atheists and adults with no particular religion are not statistically significant.