Agent Richard07 wrote:
The governor's town is pretty much dead though. Not many were people left. What happened to them all?
Attrition: The commando raid to rescue Glenn & Maggie; the return strike to rescue Daryl; Merle's stand at the negotiation site; the attack on the prison; and the Governor going full-tilt crazy and killing most of his strike force.
Most of the people who were left after that don't seem to have been considered to be possible fighters, hence being left at Woodbury when the Governor set out to attack the prison. It seemed like they were, in fact, being left entirely on their own for, since Tyreese and Sasha said they would stay to protect them until the Governor returned.