Most banjos will stand going a bit above concert pitch. However using a capo is a better option and there are several new type 5th string capos available now that eliminate the previous problems.
I currently have a wide range of banjos from a seeger type long neck to a Gold Tone Plunky which is the smallest 5 string I have ever played and is tuned in C. My Picolo banjo is tuned in A and the long neck in E. I also use a standard 5 string in G tuning. All this means that I do not have to keep retuning.

For all the jokers whose ears prick up at the mention of banjos, keep the jokes comming as I can turn most of them onto melodeon players who are a far more sorry bunch than us lot

Keep pickin'