Quimby is a city in Cherokee County, Iowa, United States. The population was 368 at the 2000 census.
Quimby is located at 42°37′47″N 95°38′34″W / 42.62972°N 95.64278°W / 42.62972; -95.64278 (42.629770, -95.642846). It is situated near the Little Sioux River.
According to the United States Census Bureau, the city has a total area of 0.4 square miles (1.1 km²), all of it land.