70,000 is the population of the town (actually, towns), but the crowd that came to see her was estimated by the fire chief at 70,000, which would be 20,000 inside the ticketed area and 50,000 on the field with the jumbo monitors outside. Someone else estimated it to be about 100,000, incidentally.
AMAZING. Still hoping they will make a run through the rest of the South. No need to fly over... they need to drop in and make some speeches!