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"Very fair was her face, and her long hair was like a river of gold. Slender and tall she was in her white robe girt with silver; but strong she seemed and stern as steel, a daughter of kings."
“It’s a dangerous business, Frodo, going out your door. You step onto the road, and if you don’t keep your feet, there’s no knowing where you might be swept off to.”
We aren’t given a clear information about Orcs in the Fourth Age and beyond. It’s been stated that the entire force of Sauron was destroyed by the end of the War of the Ring (especially in the weeks following the Battle of the Morannon) but I’m pretty sure not every single Orc in Middle-Earth was in the Battle of Morannon at the time.
Tolkien stated that Orcs were not exactly wholly evil in their own right (at least, they didn’t invade and raid in large numbers or posed serious threat to the settlements of Free Peoples) and that without a Dark Lord to serve, they scattered into small groups and did very little damage, if they did any at all. That seems to be the situation during the years between War of the Last Alliance and War of the Ring. But I reckon they would even be more harmless after the War of the Ring than they were during the Watchful Peace, since their numbers would have dwindled considerably.
I don’t remember the source (if anyone does, please let me know!) but I’ve read somewhere that small groups of orcs still dwelt in the Misty Mountains after the War of the Ring. But they posed no real threat to the lands of Free Peoples after Sauron’s fall. I imagine (this is my opinion only) that those who were able to avoid being hunted were a very small number that they eventually died out.