The National Youth Agency

Population

In 2005 the total population for the United Kingdom was approximately 60.2 million, within which:

There were approximately 11.6 million (11,645,600) young people aged under 16, almost 6 million (5,969,800) of which were male and just over 5.5 million (5,675,900) female.
There were approximately 13 million (13,221,400) young people under the age of 18, over 6.5 million (6,779,200) of which were male and almost 6.5 million (6,441,700) were female.
There were approximately 5.5 million (5,498,200) young people aged between 13 and 19, of which almost 3 million (2,827,700) were male and over 2.5 million (2,670,600) were female.

In 2004 in England:

Also of interest...

There were approximately 9.7 million (9,754,400) young people aged under 16, over 5 million (5,000,200) of which were male and almost 5 million (4,754,200) were female.
There were approximately 11 million (11,065,400) young people under the age of 18, over 5.5 million (5,674,100) of which were male and over 5 million (5,391,300) were female.
There were approximately 4.6 million (4,577,300) young people aged between 13 and 19, of which over 2 million (2,354,700) were male and 2 million (2,222,000) were female.

In 2007, there were 12.4 million young people aged 0 to 19. This is projected to rise to almost 12.8 million by 2017. In 2007, there were 4 million young people aged 14 to 19. This is projected to fall to just over 3.5 million by 2017.

(Source: Children and Young People Today: evidence to support the development of the Children's Plan, Department for Children, Schools and Families, 2007).

In the 2001 census Britain's minority ethnic populationwas recorded as 4.6 million, within which:

38% of the Bangladeshi community; 35% of the Pakistani community; 34% of the Muslim community, and 30% of the Black African population were aged under 16 years, compared to 20% of the White British population.
96%of the UK minority ethnic population lived in England, compared to 82% of the White population.
38 million people (nearly seven in ten)in Great Britain described their ethnicity as White British and their religion as Christian. Other large faith groups were Pakistani Muslims (686,000), Indian Hindus (471,000), Black Caribbean Christians (417,000), Black African Christians (334,000) and Indian Sikhs (307,000).

(Source: Social Trends, No. 37, 2007; National Statistics)

National Statistics experimental statistics ethnic breakdown of 0-19 year-olds, England, 2005 - 83% were white. Of the remaining 17%:

Just over 1% of young people were from the Bangladeshi community.
Just over 1% of young people were black Caribbean.
1.75% were black African.
2.5% were from the Indian community.
Just over 2.5% were of the Pakistani community.

(Source: Children and Young People Today: evidence to support the development of the Children's Plan, Department for Children, Schools and Families, 2007).