Truesdale is a city in Warren County, Missouri, United States.

It is directly adjacent to the east of Warrenton and is part of the St. Louis MSA.

[6] A post office called Truesdail was established in 1889, and remained in operation until 1979.

[9] Notable companies in Truesdale are Cascade Plastics, Oldcastle Glass, Warrenton Oil, Coca-Cola, River City Steel, Metso Minerals Sealcraft, and Microfinish.

28.5% of all households were made up of individuals, and 6.7% had someone living alone who was 65 years of age or older.

29.0% of all households were made up of individuals, and 8.3% had someone living alone who was 65 years of age or older.

Climate is characterized by relatively high temperatures and evenly distributed precipitation throughout the year.

[citation needed] Rebecca Boone Elementary (K-5th) is located within the City of Truesdale.