Mount Auburn is a city in Benton County, Iowa, United States. The population was 162 at the time of the 2020 census. It is part of the Cedar Rapids Metropolitan Statistical Area. History Mount Auburn was platted in 1871 when the Burlington, Cedar Rapids and Minnesota Railway was extended to that point. Geography According to the United States Census Bureau, the city has a total area of , all land. Demographics 2010 census As of the census of 2010, there were 150 people, 64 households, and 44 families living in the city. The population density was . There were 68 housing units at an average density of . The racial makeup of the city was 98.0% White, 1.3% Native American, and 0.7% from two or more races. Hispanic or Latino of any race were 0.7% of the population. There were 64 households, of which 31.3% had children under the age of 18 living with them, 60.9% were married couples living together, 4.7% had a female householder with no husband present, 3.1% had a male householder with no wife present, and 31.3% were non-families. 26.6% of all households were made up of individuals, and 12.6% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.89. The median age in the city was 35 years. 24% of residents were under the age of 18; 9.3% were between the ages of 18 and 24; 22% were from 25 to 44; 28.7% were from 45 to 64; and 16% were 65 years of age or older. The gender makeup of the city was 54.0% male and 46.0% female. 2000 census As of the census of 2000, there were 160 people, 62 households, and 46 families living in the city. The population density was . There were 64 housing units at an average density of . The racial makeup of the city was 91.88% White, 3.12% Native American, 1.25% Asian, and 3.75% from two or more races. Hispanic or Latino of any race were 0.62% of the population. There were 62 households, out of which 32.3% had children under the age of 18 living with them, 67.7% were married couples living together, 3.2% had a female householder with no husband present, and 25.8% were non-families. 21.0% of all households were made up of individuals, and 12.9% had someone living alone