In Chandler, AZ, a city of about 250,000, Cornerstone Church has over 6,000 active members.
Yesterday-—as per a request from our pastor-—”regular” members attended one of the Saturday Easter services (which was very good) to make room for all those bringing visitors to the 9:30 and 10:30 services.
Ours was packed, SRO, including a big overflow room, at 4:00.
So I would say “some” churches do not have trouble spreading the Gospel.
Fourth Presbyterian Church, in the rock-ribbed, conservative, Bible-belt town of Bethesda, MD, is doing fine as well.