David Cameron was born in 1966, so was 34 in 2000
French Prime Minister was born in 1942 and he is 68 years old.
When David Cameron became Prime Minister in May 2010, he was 43 years old. He is the youngest Prime Minister since Robert Jenkinson in 1812 who was 42 years old at the time.
Winston Churchill was 66 years old when King George appointed him to be the prime minister after Neville Chamberlain died. He became the Prime Minister again in 1950. Even though he was fairly old to be the prime minister he was a formidable man. He lived to be almost 90 years old.
79
Robert Walpole was 44 years when he became prime minister.
44 years old
Harold Holt was born on 5 August 1908, and became Prime Minister in January 1966. He was 57 when he became Prime Minister.
The United States does not have a Prime Minister, they have a President. The current President of the United States is Barack Obama and he is 49 years old.
He was 45 years old.
Charles Michel, named prime minister in 2014, is 42 years old (born December 21, 1975). Elio De Rupo (prime minister 2011 to 2014) was born July 18, 1951.
The prime minister has changed since you asked this question. The current prime minister, Yoshihiko Noda, who took office on September 2, 2011, is 54 years old, having been born on May 20, 1957.
As of the 30th of June 2017, Joseph Muscat is the Prime Minister of Malta. He was born on the 22nd of January, 1974, so he is 43 years old.