The core teen dramas were filmed in California, New York, and North Carolina, but occasionally in other states too — and sometimes even out of the country.
As far as I remember, especially as I was following a 9-Oh fan website that used to do heavy coverage of the show's filming locations during its run, nu90210 was strictly conservative, location-wise, with their outdoor shoots, keeping it mostly in southern California.
They had episodes that were set outside LA but never shot there for real: Their Mexico spring break episode in Season 3, and the two episodes set in Las Vegas , one in Season 4 and the other in Season 5 Episode 1.
As far as I remember, especially as I was following a 9-Oh fan website that used to do heavy coverage of the show's filming locations during its run, nu90210 was strictly conservative, location-wise, with their outdoor shoots, keeping it mostly in southern California.
They had episodes that were set outside LA but never shot there for real: Their Mexico spring break episode in Season 3, and the two episodes set in Las Vegas , one in Season 4 and the other in Season 5 Episode 1.