Yokosuka, Yokohama, Tokyo, basically all of Japan = not common at all.
The few that I see are stock. The Japanese didn't really take to the G.

not very many tuned/tricked out g35 sedans here.
trying to be the first

I think they are multiplying in my city. I see more and more of them everyday driving around.

There are a ton of them here, sedans mostly driven by older women and coupes by younger kids.

There are a few around here in Spartanburg SC.

Not a lot in Buffalo, I've seen about 10 around the area and... NYC everyone probably already knows there're way too many.

Same here.

TONS of G35/G37's around.

New models are usually driven by older people who can afford a $40+K car. Older models follow the above post. Young kids in coupes, and mostly women in sedans. Occasionally i see a sedan driven by a younger person

I live in a rural part of East Texas and I have the only G35 Coupe for 40 miles in every direction. Even Corvette's are scared of this thing because they have no idea wyhat it is but it looks fast. There are a few sedans but not many at all. The G is rare where I'm at.

I live in the North Bay of California (Wine Country) and I don't see many. I see a few sedans, a couple coupes but nothing major. Part of the reason I am looking for one...that and I have ALWAYS wanted one. I figure even if it is common, i'd make it my own and so it wouldn't be common anymore anyways.

Not too many around me, one of my friends has one(Black) and then just one other person like 2 towns away has one(Red). You see a couple of sedans but the coupes like I said are just the 3 of us. But when I go home to NY I see lots and in D.C there are shitloads.

Theres a good amount by me. Within a 3 block radius of my house there are 5 g35 including mine. I see more sedans than coupes.

A car magazine once said "G35's are so common in southern California that they are referred to as The OC Taxi".

7 in my neighborhood alone and I don't even go through all of it, so there may be others hiding off of random side streets.

lots of female coupe drivers in temecula. same goes for san diego lol. old american and asian ladies

id say theres a good amount in the glendale/burbank area. mostly dumb ***** who dont know how to drive them.