Yes, on
Google Trends, you can pick Metro or City for the subregion option.
Metro does make it more fine-grained into 210 areas, but the problem is that it becomes a lot harder to try to correlate it with other variables, since I think it'd be hard to find various stats like average income or ancestry subdivided in this way.
There's also the City option, but it looks like only 10 cities in the US have enough data to show.
