Introduction: These are the most common places in Ranma 1/2. These are the places which housed the stories. Some of them exist, most however, do not.
Places In Nerima, Tokyo, Japan:
Furinkan High: The high school that Ranma, Akane, Kuno, Nabiki, Gosunkugi, and Ukyo attend. A place that, by now, is probably used to strange happenings and occurences.
Tendo Dojo: The home of the Tendos, where Ranma and Genma are staying as guests. Is also the dojo for the Tendo Anything-Goes School of Maartial Arts, which Ranma and Akane are supposed to carry on. This particular place seems to suffer structural damage daily, from a number of sources, but somehow Soun finds a way to repair the dojo every time.
Dr. Tofu's Office: Dr. Tofu runs this clinic, where he treats people's injuries with his extensive shiatsu and martial arts training. Usually, Ranma may be found here, when Akane beats him up pretty badly. This is also the place where Akane and Ranma usually go if something unusual has happened and they want to know what it is (e.g. Akane's memory loss or Ranma's sensitivity to hot water, etc.)
St. Hebereke/Bacchus High: The all-girls school where Kodachi Kuno goes, and where she is captain of the Rhythmic Gymnastics team that is always spying for her.
Hibiki Residence: Ryouga's house. Unfortunately, the Hibikis are rarely home since they are all lost.
Neko Hanten/Cat Cafe: The ramen restaurant that Shampoo and Cologne opened near the Tendo dojo.
Ucchan's: The okonomiyaki restaurant that Ukyo opened near the Tendo dojo.
Kuno Estate: The mansion of the Kuno family. Ranma once showed up here to destroy an incriminating doctored photo of him and Kodachi embracing.
Kolkhoz High: The high school where Mikado Sanzenin and Azusa Shiratori go to and are the skating champions.
Places in Quinhai, China:
Jusenkyo: A ground of cursed springs, located in the Bayankala mountains of the Xinghai Province. Each spring has its own curse, and falling into a spring gives you a curse which turns you into whatever drowned there and cursed it. The effect is only temporarily reversible with hot water. Ranma, Genma, Shampoo, Mousse, and Ryoga all were cursed here.
Joketsuzoku: A village of Chinese Amazons, located near Jusenkyo. This is the village that Mousse, Shampoo, and Cologne come from, and where Ranma first defeated Shampoo.
Nekonron: The place where Kirin and the rest of the Seven Lucky Gods of Martial Arts live. The story does not say it is in Quinhai, but it is in a remote region, and the only remote regions in China are Quinhai and Tibet (which is full of high mountains, so it can't be there)
Places that Never Stay Put:
Togenkyo Island: A floating, moving island that Toma rules.
Places somewhere in Japan:
Ryugenzawa: A forest that contains unusually large animals, due to the magical "Water of Life" spring. Shinnosuke and his grandfather keep the animals restricted to this area. Akane was once lsot int his forest when she was young, but was rescued by Shinnosuke.
Tunnel of Lost Love: This is a tunnel reputed to break up any couples that walk into and out of it together. Ukyou, along with Ryouga, tried to break up Ranma and Akane by sending them into the cave together.