Gideon is a city in New Madrid County, Missouri, United States.

[4] The town site was platted in 1903, and named in honor of Frank Gideon, a businessperson in the lumber industry.

There were 458 housing units at an average density of 255.9 per square mile (98.8/km2).

The racial makeup of the city was 99.36% White, 0.09% Black or African American, and 0.55% from two or more races.

29.4% of all households were made up of individuals, and 14.1% had someone living alone who was 65 years of age or older.

There were 465 housing units at an average density of 258.4 per square mile (99.8/km2).

29.8% of all households were made up of individuals, and 17.7% had someone living alone who was 65 years of age or older.