Innsmouth is a fictional location found in the mythos of Lovecraft and those who followed in his footsteps, this "town" is known to be extremely hostile towards outsiders and has an unpleasant sensation of being corrupted - with the smell of rotting fish often lingering in the air.
The citizens of Innsmouth (also called "Innsmouthians") are often exceptionally ugly and have connections with the Order of Dagon, a dangerous cult devoted to a minor Great Old One and a prominent Deep One: some of the citizens of Innsmouth are also in the process of becoming Deep Ones themselves in what is known as the "Innsmouth Taint".
|“||It was a town of wide extent and dense construction, yet one with a portentous dearth of visible life. From the tangle of chimney-pots scarcely a wisp of smoke came, and the three tall steeples loomed stark and unpainted against the seaward horizon. One of them was crumbling down at the top, and in that and another there were only black gaping holes where clock-dials should have been. The vast huddle of sagging gambrel roofs and peaked gables conveyed with offensive clearness the idea of wormy decay, and as we approached along the now descending road I could see that many roofs had wholly caved in. There were some large square Georgian houses, too, with hipped roofs, cupolas, and railed "widow's walks". These were mostly well back from the water, and one or two seemed to be in moderately sound condition.... The decay was worst close to the waterfront, though in its very midst I could spy the white belfry of a fairly well-preserved brick structure which looked like a small factory. The harbour, long clogged with sand, was enclosed by an ancient stone breakwater.... Here and there the ruins of wharves jutted out from the shore to end in indeterminate rottenness, those farthest south seeming the most decayed. And far out to sea, despite a high tide, I glimpsed a long, black line scarcely rising above the water yet carrying a suggestion of odd latent malignancy. This, I knew, must be Devil Reef.||„|
|~ The Protagonist's opinion about the town of Innsmouth in The Shadow Over Innsmouth.|
The town of Innsmouth is described as being in a horrendous state of decay, with many of the buildings rotting, and on the point of collapse.