Malta Bend is located at . According to the United States Census Bureau, the city has a total area of, all land. The land is surrounded on three sides by the Missouri River. The average alluvial soil depth is 25 ft.
As of the census of 2010, there were 250 people, 98 households, and 69 families living in the city. The population density was. There were 110 housing units at an average density of. The racial makeup of the city was 96.4% White, 1.2% African American, 1.6% from other races, and 0.8% from two or more races. Hispanic or Latino of any race were 2.0% of the population. There were 98 households of which 35.7% had children under the age of 18 living with them, 50.0% were married couplesliving together, 14.3% had a female householder with no husband present, 6.1% had a male householder with no wife present, and 29.6% were non-families. 28.6% of all households were made up of individuals and 10.2% had someone living alone who was 65 years of age or older. The average household size was 2.55 and the average family size was 3.09. The median age in the city was 39.6 years. 25.2% of residents were under the age of 18; 8.8% were between the ages of 18 and 24; 26% were from 25 to 44; 27.2% were from 45 to 64; and 12.8% were 65 years of age or older. The gender makeup of the city was 49.6% male and 50.4% female.
2000 census
As of the census of 2000, there were 249 people, 93 households, and 66 families living in the town. The population density was 948.8 people per square mile. There were 104 housing units at an average density of 396.3 per square mile. The racial makeup of the town was 97.99% White, 1.61% African American, and 0.40% from two or more races. There were 93 households out of which 34.4% had children under the age of 18 living with them, 55.9% were married couples living together, 8.6% had a female householder with no husband present, and 29.0% were non-families. 28.0% of all households were made up of individuals and 12.9% had someone living alone who was 65 years of age or older. The average household size was 2.68 and the average family size was 3.26. In the town the population was spread out with 34.1% under the age of 18, 7.2% from 18 to 24, 26.1% from 25 to 44, 18.9% from 45 to 64, and 13.7% who were 65 years of age or older. The median age was 32 years. For every 100 females there were 112.8 males. For every 100 females age 18 and over, there were 102.5 males. The median income for a household in the town was $27,250, and the median income for a family was $34,063. Males had a median income of $28,611 versus $21,563 for females. The per capita income for the town was $14,403. About 13.3% of families and 11.3% of the population were below the poverty line, including 14.8% of those under the age of eighteen and 4.7% of those sixty five or over.
