Davis City is a city in Decatur County, Iowa, United States. The population was 179 at the time of the 2020 census. History Davis City was laid out in 1855. It is named for William Davis, who operated a sawmill. Davis City was a shipping point on the Chicago, Burlington and Quincy Railroad. Geography Davis City is located at (40.639501, -93.812137) along the Thompson River. A stream gauge station is maintained on the river in the city. According to the United States Census Bureau, the city has a total area of , all land. Demographics 2010 census At the 2010 census there were 204 people in 94 households, including 53 families, in the city. The population density was . There were 121 housing units at an average density of . The racial makup of the city was 98.0% White, 0.5% Native American, and 1.5% from two or more races. Hispanic or Latino of any race were 1.0%. Of the 94 households 21.3% had children under the age of 18 living with them, 44.7% were married couples living together, 6.4% had a female householder with no husband present, 5.3% had a male householder with no wife present, and 43.6% were non-families. 36.2% of households were one person and 17% were one person aged 65 or older. The average household size was 2.12 and the average family size was 2.72. The median age was 52 years. 18.1% of residents were under the age of 18; 6.9% were between the ages of 18 and 24; 17.2% were from 25 to 44; 28.4% were from 45 to 64; and 29.4% were 65 or older. The gender makeup of the city was 48.5% male and 51.5% female. 2000 census At the 2000 census there were 275 people in 109 households, including 79 families, in the city. The population density was . There were 125 housing units at an average density of . The racial makup of the city was 98.55% White, 0.36% Native American, 0.73% from other races, and 0.36% from two or more races. Hispanic or Latino of any race were 1.45%. Of the 109 households 33.9% had children under the age of 18 living with them, 54.1% were married couples living together, 11.0% had a female householder with no husband present, and 27.5% were non-families. 24.8% of households were one person and 10.1% were one person aged 65 or older. The average household