Bikini Bottom

Bikini Bottom (formerly known as Dead Eye Gulch and before that Bikini Gulch and Bikini Bikini Bottomshire) is the main setting in SpongeBob SquarePants series. The city has a proper population of about 538. The city consists of various businesses, including restaurants, stores, and manufacturers. The city has a stable economy, a balanced education system, questionable health care (as seen in The Lost Mattress) and labor laws, a structured government, and a firm law enforcement system. There are even stadiums, amusement parks, and other recreational facilities (such as Glove World). Bikini Bottom was first mentioned in the episode: "Plankton!" but first appeared in the episode: "Help Wanted." Bikini Bottom is also home to almost all of the characters in the show.

Location
Bikini Bottom is located in the Pacific Ocean at the bottom of the sea, below its signature island, Bikini Atoll, found by Kevin Atalay and Jochem Pouw according to Stephen Hillenburg. There are many instances of evidence of this in the show: After being scared off by "ghosts", Sandy Cheeks evacuated to Texas. She was seen flying east from the Pacific Ocean. In the Employee of the Month computer game, a fish mentions that Bikini Bottom is located in the Pacific Ocean. In The SpongeBob SquarePants Movie, when SpongeBob was singing the "Goofy Goober Rock", the camera rose out of the water into outer space. When it did, it came out of the Pacific Ocean. In the TV commercial "Plankton's Holiday Hits", Bikini Bottom is revealed to be part of the United States, and its residents Americans. In "SpongeBob's Last Stand", Bikini Bottom is on the Outskirts of Nowhere.

Architecture
Bikini Bottom seems to mostly be made up of scrap metal and whatever stuff may fall down from the surface. This seems to allude to the fact that undersea life is mostly scrap living wherein a stable sea-wide society has not yet, or may never be formed. The structures of the buildings in the main part of town have a relatively wavy structure, probably due to undersea currents. These buildings may be apartments. The homes that are made of different items from the surface may be a more residential or suburban area, possibly close to Goo Lagoon and Jellyfish Fields. In the episode "Bubblestand" (in the aerial view when Squidward is floating away) behind the neighborhood, but it's unknown what it is. It could possibly be another neighborhood because a road goes through a medium sized arch. Three buildings are there: two regular (with roads connecting to each of their doors) another building is seen over there: a large building that's shaped like a low (in height) cylinder with something atop and what appears to be a window. Another building a few hundred feet to the east is seen. It appears to be a pavilion of some sort with three sections and a small road (thinner than the usual road) leading to it. These buildings don't appear again in the series.