Official school ages: primary, secondary, and compulsory education
Some of the statistics on this site, for example primary and secondary school net enrollment rates, are easier to interpret if the official school ages in a country are known. I have therefore prepared a file that lists the official school ages in 206 countries and territories, taken from the latest release of UNESCO's global education database . This article summarizes the entrance age and duration of primary, secondary, and compulsory education from that database. To download the file with official school ages go to the bottom of this article. In 204 of 206 countries, children enter primary school between 5 and 7 years of age (see Table 1). Exceptions are Ireland, where primary school begins at 4 years, and Mongolia, where it begins at 8 years. In 127 countries, the official primary school entrance age is 6 years. The duration of primary school ranges from 3 years (in Armenia, Russia, and Turkmenistan) to 8 years (in Ireland). In 123 countries, primary school has 6 grades. Table...