Connell is a city in Franklin County, Washington, United States. The population was 4,209 at the 2010 census. The Washington State Office of Financial Management's 2011 estimate placed the population at 5,150.
Prior to 1883 the area now known as Connell was used by ranchers as open range for cattle and horses. The community was established in 1883 as a junction between the Northern Pacific Railroad and the Oregon Railroad and Navigation Company. The new town was called Palouse Junction by Jacob Cornelius Connell, a railroad official and resident. Palouse Junction was unique on the Ainsworth to Spokane run, in that it was not on a river. It was also the gateway to the Palouse via the OR&N's line to Washtucna. Water for trains and for the town was from public wells dug by the railroad. At some time between 1886 and 1900, the town was renamed to Connell.
The Northern Pacific Railroad ceased service to the station in 1890, but the Union Pacific Railroad took over the station in 1901, and the town began to grow again. A school district was formed sometime between 1900 and 1904. In 1902 the Franklin County Bank was Incorporated in Connell, and the Connell Land and Improvement Company was established. Also in that year, the county allowed a franchisee to begin piping in water for the town (Although this was never very successful, and the following year a good well hit water at 268 feet). In 1903, lots on the west side of the tracks were sold, and a new commercial district began to grow, and a number of existing buildings were even moved to these new lots.