how many chickens?

[diamond g]

my coop ended up being 70 sq feet (7ft x 10ft) how many chickens can I keep in there. right now I have 6 sex links. considering a few bantams or some RIR

They do not have outside access (too many feral cats) the coop is chainlink under a canopy

 

[Demosthine]

Since they won't have access to a run or free-ranging, I believe the usually guide is four square feet per chicken. For the sake of a happy, healthier flock, I would probably increase it to 6 square feet per chicken. That would give you eleven to seventeen in that size space.