Parker City is a town in Monroe Township, Randolph County, in the U.S. state of Indiana. The population was 1,419 at the 2010 census.
Parker City was originally called Morristown, and under the latter name was platted in 1851. A post office has been in operation at Parker City since 1853.
Parker City is located at 40°11′25″N 85°12′12″W.
According to the 2010 census, Parker City has a total area of 0.57 square miles (1.48 km2), all land. It is located at an elevation of 1025 feet.
As of the census of 2010, there were 1,419 people, 544 households, and 372 families living in the town. The population density was 2,489.5 inhabitants per square mile (961.2/km2). There were 605 housing units at an average density of 1,061.4 per square mile (409.8/km2). The racial makeup of the town was 97.7% White, 0.5% African American, 0.4% Native American, 0.1% from other races, and 1.4% from two or more races. Hispanic or Latino of any race were 0.4% of the population.