Most of time yes, but the course changes each year.
For example in 2007 the Tour de France started from London.
Anyway, it always ends in Paris.
The 94th Tour de France in 2007
In 2012 the Tour de France started in Belgium.
The Tour de France will begin in Monaco on the 4th July.
The Tour the France does not always start in France. In 2010 it will start in the Netherlands, Rotterdam at the third of Juli.
Bob Roll has competed in three Tour De France competitions.
"Tour de" basically means "tour of". So tour de France = tour of France.
The start of the Tour differs, but it always ends in Paris.
1903, July the 1st
On the Island of Corsica.
it started on the 2nd of july.