Accordin tae the 2001 census, the Unitit Kinrick's population wis 58,789,194 - the third-lairgest in the European Union (ahint Germany an metropolitan Fraunce) an the 21st-lairgest in the warld. Its hail population density is ane o the heichest in the warld. Awmaist ae-third o the population leeves in Ingland's sootheast an is foremaist urban an suburban, wi aboot 7.7 million in the caipital o Lunnon. The Unitit Kinrick's heich leeteracy rate (99%) is endue tae universal public eddication introduced for the primary level in 1870 an seicondary level in 1900 (cep in Scotland whaur it wis introduced in 1696. Eddication is compulsory frae the ages o 5 tae 16. Aboot ae-fift o Breetish students gangs on tae post-secondary eddication (18+). The Kirk o Ingland an the Kirk o Scotland functions as the offeecial naitional kirks in thair respective kintras, but the major releegions fund in the warld is representit in the Unitit Kinrick.