Devon Corporation
- Main article: Devon Corporation
Rustboro serves as the establishment for the Devon Corporation, a company which makes many items for Pokémon Trainers. The company headquarters is located in the northwest corner of the city, and takes the appearance of a large, old-fashioned looking building. A sign outside reads:
DEVON CORPORATION
"For all your living needs, we make
it all."
Apart from developing improved and innovative items, the company also revives Pokémon from Fossils. The Devon Corporation's workers are also attempting to build impossible machines such as one that can transform people into Pokémon. In the south section of the town is an apartment complex for Devon employees.
Cutter's house
A Cutter lives near the Pokémon Center with his daughter. A sign outside reads:
When the city of Rustboro was undergoing expansion, the Cutter had his Pokémon use Cut to help clear the land of trees. He will give the player HM01 (Cut). According to May/Brendan, he has a younger brother in Mauville City, which is the person that gives out HM06 (Rock Smash).
Elyssa's house
Elyssa's House is located next to the Gym in Rustboro City. By talking to Elyssa, the player is given the option to make an in-game trade. In Ruby and Sapphire, Elyssa wants a Slakoth, and will trade a Makuhita named Makit in exchange. Makit is holding an X Attack. The new Pokémon's level will match that of the Pokémon the player traded.
Kobe's house
In Emerald, Elyssa gets replaced by Kobe and he will instead want a Ralts (found on Route 102), and will trade a Seedot named Dots in exchange. Dots is holding a Chesto Berry.
Pokémon Trainer's School
- Main article: Pokémon Trainer's School
The Pokémon Trainer's School is located east of the Pokémon Center. A sign outside reads:
POKéMON TRAINER'S SCHOOL
"We'll teach you anything about
POKéMON!"
Inside are five students and a teacher, who gives the player the Quick Claw. Talking to the students also reveals helpful information. Behind the teacher is the blackboard with the list of status conditions (Poison, Burn, Freeze, Paralysis, and Sleep) that may affect Pokémon in a battle. In the anime, Roxanne, the local Gym Leader, runs the school.
Walda's house
In Pokémon Emerald, a sad young girl named Walda lives between the Pokémon Center and the Devon Corporation building. If the proper 'funny' word is given to her caretaker, she will reward the player with a new wallpaper for the Pokémon Storage System.
Rustboro Gym
- Main article: Rustboro Gym
Rustboro Gym is the first Gym a player must face in the Hoenn region. It is located in the northern part of Rustboro, east of the Devon Corporation. The sign outside reads:
RUSTBORO CITY POKéMON GYM
LEADER: ROXANNE
"The ROCK-loving honors student!"
The Gym Leader is Roxanne, who specializes in Rock-type Pokémon. The Stone Badge is awarded for defeating Roxanne. The Gym is a maze; there are two paths, one path which battles the Gym Trainers, while the other path lets the players go through without battling.
In the anime, Rustboro Gym appears as a giant boulder in A Winner by a Nosepass!.