Concert Venues in Santa Ana, CA The Observatory - Santa Ana Where: 3503 S. Harbor Blvd, Santa Ana, California - 92704 Events: 67 The Constellation Room Where: 3503 South Harbor Boulevard, Santa Ana, California - 92704 Events: 61 La Santa Where: 220 E 3rd St., Santa Ana, California - 92701 Events: 2 Calvary Church of Santa Ana Where: 1010 N Tustin Ave, Santa Ana, California - 92705 Events: 1