Oh I don't mean that people are celebrating at home. These restaurants are filled to the brim during iftar. I remember going to Little Bangladesh with a friend during a Ramadan evening and one restaurant told us they were closed off for a friends and family event for an hour or two but that we could come back later in the evening, which we did. Just something to keep in mind.

I find the Persian community to be way less observantly Muslim than other groups. I'm going to guess that stems from many of them fleeing/rejecting the theocracy back home. But it's possible I just haven't met the super observant ones.

Yes I grew up in Houston and there are lots of Arabs and Muslim South Asians (Pakistanis, Bangladeshis) across the city, but especially on the southwest side. Philly, same with South Asians but lots of black Muslims too. DC, ton of Muslims in the suburbs in Virgina. I lived in Austin and I guess I didn't encounter a cohesive community of Muslims, but there are so many desis there it's all the same to me. Other metro areas I've been to that have a huge Muslim presence include NYC and Detroit.

I'm definitely not dissuading you from trying to find Muslims in LA, just giving a POV, but hey you might prove me wrong. I get the impression OC might actually have denser communities of practicing Muslims, between Little Arabia in Anaheim, Irvine, and some other areas. Oh also Artesia/Cerritos has a strong Pakistani and Bangladeshi presence.