Biohazard Cleanup Near Estates West Sergeant Bluff, IA

Sergeant Bluff is named for U.S. Army Sergeant Charles Floyd of the Lewis and Clark Expedition, who died on August 20, 1804 — believed to be of a ruptured appendix — and was buried on a bluff above the Missouri River; Floyd was the expedition's only fatality, and Lewis and Clark named the Floyd River and Floyd's Bluff in his honor.

The village of Sergeant Bluff was started in 1852 under the name Sergeant's Bluff City, and it became the first town in Woodbury County.

Sergeant Bluff was incorporated on May 2, 1904 — the centennial year of Sergeant Floyd's death.

The 2020 census counted 5,015 people in Sergeant Bluff, up from 4,227 in 2010.

Sergeant Bluff had 1,731 households in the 2020 census, and nearly 59 percent of them were married-couple households.

Sergeant Bluff is part of the Sioux City, Iowa–Nebraska–South Dakota metropolitan area and sits just south of Sioux City at the edge of the Loess Hills.

Sioux Gateway Airport (SUX) lies adjacent to Sergeant Bluff on the Missouri River floodplain, and the Iowa Air National Guard's 185th Air Refueling Wing flies KC-135R Stratotanker aircraft from the airport just west of the city.

Sergeant Bluff is home to a large brickmaking industry and sits near the Port Neal industrial complex, a sprawling riverfront district of power plants, a fertilizer plant, a pork processing plant and a soybean processor.

Interstate 29 cuts through Sergeant Bluff, dividing its residential neighborhoods from its industrial areas.

Children in Sergeant Bluff attend the Sergeant Bluff-Luton Community School District, which runs a primary school, an elementary school, a middle school and a high school.