Anderson is a CDP in Fremont County, Iowa, United States. In 2020, the population of the CDP was 37.

Historical population

Census	Pop.	Note	%±
2010	65		—
2020	37		−43.1%
U.S. Decennial Census

As of the census of 2020, there were 37 people, 16 households, and 11 families residing in the community. The population density was 112.5 inhabitants per square mile (43.4/km). There were 20 housing units at an average density of 60.8 per square mile (23.5/km). The racial makeup of the community was 97.3% White, 0.0% Black or African American, 0.0% Native American, 0.0% Asian, 0.0% Pacific Islander, 0.0% from other races and 2.7% from two or more races. Hispanic or Latino persons of any race comprised 2.7% of the population.

Of the 16 households, 18.8% of which had children under the age of 18 living with them, 62.5% were married couples living together, 6.2% were cohabitating couples, 6.2% had a female householder with no spouse or partner present and 25.0% had a male householder with no spouse or partner present. 31.2% of all households were non-families. 31.2% of all households were made up of individuals, 12.5% had someone living alone who was 65 years old or older.

The median age in the community was 48.2 years. 21.6% of the residents were under the age of 20; 0.0% were between the ages of 20 and 24; 16.2% were from 25 and 44; 56.8% were from 45 and 64; and 5.4% were 65 years of age or older. The gender makeup of the community was 59.5% male and 40.5% female.

While there is no fixed-route transit service in Anderson, intercity bus service is provided by Jefferson Lines in nearby Shenandoah.