My frustration exactly. If you do not live in one of the chosen major cities, you have to search "other" and good luck with that. If you are in a smaller city, you are basically resigned to Backpage and other lesser boards.
There is no petition. You can post a suggestion on the S&P board. Don't hold your breath though. Some of the suggestions on that board become poliies or changes on the site, but only very few.
On the other hand, there are so many dead boards already, that I am not sure they are interested in giving any more small areas their own board. For example, check out the Kansas board. That is a whole state, and there are definitely hobbyists and providers there, but there are 7 threads on that board for this year and two of them are from admin. Other examples are Orange County, Seattle, and Portland. Even San Fransisco, though a big city and very big hobby wise, has a pretty dead TER board.
I am from Hawaii and I post on this "other cities" board, and I will be the first to admit, that hawaii does not warrant it's own TER board. It would be pretty dead.
I wish Alabama had it's own board which London Rayne recently requested but I highly doubt it because Tennessee is pretty dead already. I think they should revamp all the areas that are currently on Other Cities board to Regional areas.
Like TN, AL, and a couple of other neighboring states could be combined into one regional board. FL is fine on it's own and et cetera.
The way the boards are arranged now is just no organization or rhyme or reason and that just drives me crazy! LOL