How many lunar orbits did the command module make around the moon on the Apollo 11 mission?

30

From Apollo by the Numbers (link below)

"The 151.41-second transearth injection maneuver was performed at 135:23:42.28 at an altitude of 52.4 n mi. A nominal injection was achieved at 135:26:13.69 after 30 lunar orbits lasting 59 hours 30 minutes 25.79 seconds, at a velocity of 8,589.0 ft/sec.