My fort is running on its 3rd-ish or 4th-ish year or so and, unless I am very mistaken, it is the only Dwarven fort in my entire world (pocket size, very few civilizations). It lies on a small peninsula, on a small island, off the coast of a larger unpopulated island.
It houses:
Civillian dwarves and children (mostly builders): 63
Military Dwarves (mostly recruits and wrestlers): 55
Animals (mostly dogs): 175
Total Dwarves: 118
Total living things: 293
Top area is the Keep. Under the roof you'll find the Castellan's Quaters (manager/mayor/bookkeeper/trader/etc.), and beneath that the main barracks and armory hub. Underneath all that is the Catapult practice range. Leaving the Keep, to the right along the wall there's a Drillyard, and a Guardhouse. And beyond that, half of the Gatehouse. Bottom-right buildings are an unfinished warehouse, and the Inn. To the left of the inn, there's an unfinished housing project, which will eventually house all of the builders and food gatherers in the Fort. Up and to the left of that is the temporary workshop area.
Other things you can see: Graveyard, quarry, mine access (in the center of the fort) and fishery hut.
EDIT: If anyone is interested, upon closer inspection of the Legends, it seems that the Elven civilization has wiped out both the human and dwarven civilizations. The dwarves fell over 700 years ago, and my settlement is one of only 2 free Dwarven settlements, the other settled a year after mine, probably some sort of trading post from where the merchants come. The humans were conquered 300 years ago. When playing as an adventurer I can be only an elf, or a human outsider.