The Sioux City Fire Station Number 3, also known as the Firehouse Bar, is a historic building located in Sioux City, Iowa, United States. The city's fire department began when a group of volunteers formed the Fire Protection Organization in 1869. It was formally organized in 1876. This building was completed in 1929, and replaced an older structure from around 1884. Station Number 3 served an area that mostly contained commercial buildings on the east side of downtown and a warehouse district along the Floyd River. It served as the fire department headquarters for a short time when Station Number 1 was abandoned. It long served as a training station, and a wooden training tower was located here from at least 1924 and into the 1960s.