Answer:
the 10 most populated French towns (answer updated Oct. 10, 2010)
Rank / Town / Population
1 Paris 2 193 030
2 Marseille 852 395
3 Lyon 472 330
4 Toulouse 439 453
5 Nice 348 721
6 Nantes 283 025
7 Strasbourg 272 123
8 Montpellier 253 712
9 Bordeaux 235 178
10 Lille 225 789
Source : list (updated Feb 2010) of the 60 most populated French towns on the insee website. The figures are based on the most recent official data (2007), certified after a two-year gap by the national statistics body (insee)