Well, Dwalin aside, Gimli died at 262 which is the highest i have been able to find. I couldn't find supporting dates for Durin the Deathless, though from his name and mention in literature, he must surely have been old - if anyone can enlighten on him it would be grand...
Which reminds me, i was absolutely gutted when reading LotR that there was hardly any mention given to our old friends at the Lonely Mountain, Dale, Mirkwood, Lake Town and the principalities surrounding.