How one counts probably would impact any answer. Right after the Rodney King riots I helped distribute food and other necessities at a Pentecostal Church. (And they were rather different from most, their services could get pretty wild, But only when there were no outsiders present. Seems they took Paul's cautions on that matter rather seriously). I'm pretty sure it was unaffiliated. Does it count as its own denomination. What about churches that split from their denomination over women pastors?
I'd say Los Angeles probably has more religions than all but a handful of cities. I have driven past a Hindu temple. Same for a Zoroastrian temple and a Christian Science reading room. I've met Jews who are so conservative on the issue of working on the Sabath that they will not push the button for a walk signal. Actually, beyond that, but quite nice and elegant, he would not even ask me to push it. But he would inform me that he had not pushed the button. I've been on the grounds of an extensive Buddhist temple. A really nice one near San Pedro overlooking the ocean. Heck, near me there are 3 Christian Churches within q quarter mile circle.
And Los Angeles is spread out. plenty of room for all faiths or lack of faiths.
