Willamette

Willamette, Colorado is a town that serves as the primary location for Dead Rising, with the mall as its more specific location.

Dead Rising
Willamette is a small, suburban town in the American state of Colorado. It is located in a valley surrounded by green hills and vegetation. The town is an average American settlement, with restaurants, businesses, homes and schools. Willamette's most popular attraction is the Willamette Parkview Mall complete with 79 stores and a friendly environment for anyone to relax and shop in. Its population at the time of infection was 53,594, but then Carlito Keyes released the Ampulex Compressa Giganteus specimens he had gathered in revenge for the original clean-up in Santa Cabeza. The bees he released into the town set off a zombie outbreak, killing and zombifying much of the town's population. After the initial zombie outbreak, they began to multiply. When Frank West arrived, there were only two visible "survivors" outside the shopping mall, but he thought it was simply a riot (for example, the zombies looked like they were bashing someone up, instead of what was really happening: eating them), but he even had his doubts after there were no loud voices, as, quoting Carlito, "if everyone was already dead".

Trivia

 * Killing 53,594 zombies (the town's population), earns you an achievement and the Real Mega Buster.
 * Even if the entire population of the town is killed, the swarm of zombies will not end. Storywise, this could suggest that the quarantine has been broken, OR it is just a game mechanic and the game spawns infinite zombies.