How many rugby players in France?

15 each side plus 5 subs allowed for each side30 on the pitch at anyone time with a total of 10 subs between both teams.

There are no accurate statistics as there are many armature, school, collage and university side that are not affiliated under the WRU but its estimated in excess of 150 thousand

In Rugby Union, 15 players each side, with 7 substitutes each. In Rugby League, 13 players each side, with 4(?) substitutes each.

Rugby union teams comprise of fifteen (15) on field players. International matches allow up to seven reserves, who may be used as tactical or injury replacements.

If you mean per team, then 13 plus 4 reserves