Oakville is a city in Louisa County, Iowa, United States. The population was 173 at the 2010 census. It is part of the Muscatine Micropolitan Statistical Area.
Oakville was laid out in 1891.
Oakville is located at 41°5′52″N 91°2′37″W (41.097853, -91.043625).
According to the United States Census Bureau, the city has a total area of 0.43 square miles (1.11 km2), of which 0.42 square miles (1.09 km2) is land and 0.01 square miles (0.03 km2) is water.
At the 2010 census there were 173 people in 62 households, including 42 families, in the city. The population density was 411.9 inhabitants per square mile (159.0/km2). There were 95 housing units at an average density of 226.2 per square mile (87.3/km2). The racial makup of the city was 97.7% White, 0.6% from other races, and 1.7% from two or more races. Hispanic or Latino of any race were 2.9%.
Of the 62 households 41.9% had children under the age of 18 living with them, 40.3% were married couples living together, 14.5% had a female householder with no husband present, 12.9% had a male householder with no wife present, and 32.3% were non-families. 29.0% of households were one person and 12.9% were one person aged 65 or older. The average household size was 2.79 and the average family size was 3.36.