According to the 2010 census, Mooresville has a total area of, of which is land and is water.
Demographics
2010 census
As of the census of 2010, there were 9,326 people, 3,715 households, and 2,558 families living in the town. The population density was. There were 3,930 housing units at an average density of. The racial makeup of the town was 97.5% White, 0.3% African American, 0.2% Native American, 0.5% Asian, 0.3% from other races, and 1.2% from two or more races. Hispanic or Latino of any race were 1.1% of the population. There were 3,715 households of which 36.1% had children under the age of 18 living with them, 49.0% were married couples living together, 14.2% had a female householder with no husband present, 5.6% had a male householder with no wife present, and 31.1% were non-families. 26.5% of all households were made up of individuals and 11.6% had someone living alone who was 65 years of age or older. The average household size was 2.49 and the average family size was 2.99. The median age in the town was 38.6 years. 25.4% of residents were under the age of 18; 8.3% were between the ages of 18 and 24; 26.4% were from 25 to 44; 25.6% were from 45 to 64; and 14.3% were 65 years of age or older. The gender makeup of the town was 47.1% male and 52.9% female.
2000 census
As of the census of 2000, there were 9,273 people, 3,535 households, and 2,594 families living in the town. The population density was 1,675.0 people per square mile. There were 3,688 housing units at an average density of 666.2 per square mile. The racial makeup of the town was 98.52% White, 0.09% African American, 0.30% Native American, 0.40% Asian, 0.02% Pacific Islander, 0.18% from other races, and 0.49% from two or more races. Hispanic or Latino of any race were 0.72% of the population. There were 3,535 households out of which 39.1% had children under the age of 18 living with them, 57.5% were married couples living together, 12.4% had a female householder with no husband present, and 26.6% were non-families. 22.8% of all households were made up of individuals and 8.9% had someone living alone who was 65 years of age or older. The average household size was 2.59 and the average family size was 3.05. In the town, the population was spread out with 28.5% under the age of 18, 8.5% from 18 to 24, 32.7% from 25 to 44, 19.3% from 45 to 64, and 11.0% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 90.7 males. For every 100 females age 18 and over, there were 87.5 males. The median income for a household in the town was $47,292, and the median income for a family was $52,543. Males had a median income of $37,763 versus $26,520 for females. The per capita income for the town was $21,504. About 4.2% of families and 4.3% of the population were below the poverty line, including 6.6% of those under age 18 and 3.3% of those age 65 or over.
Education
Mooresville schools are part of the Mooresville Consolidated School Corporation.
The Mooresville school system began with the Friends Academy, which was built in 1861. The Academy Building, one of the first high schools in the state of Indiana, was a boarding school with students renting rooms from area residents. The school building sits on the Newby Memorial Elementary School campus, has been restored, and is listed on the National Register of Historic Places. The building now serves as a local history museum as well as the offices of the Community Foundation of Morgan County, Inc. Also on the Newby campus is the "old Newby gym" or the "Newby Dome." The gym was built in the early 1900s with help from Mooresville residents who each contributed $100 to help build the facility. The campus also includes the Mooresville Veterans Memorial, which honors Mooresville's fallen soldiers from World War I and beyond. The Memorial also honors Sammy Lee Davis, who received the Medal of Honor for heroism in Vietnam. Davis is known as "The Real Forrest Gump" since his Vietnam story is mirrored in the movie Forrest Gump and his Medal of Honor ceremony footage is used in the movie.
Public library
The town has a lending library, the Mooresville Public Library.
Mooresville is served by Franciscan St. Francis Health-Mooresville, formerly known as Kendrick Hospital and St. Francis Hospital-Mooresville. The full-service hospital includes an emergency department, labor and delivery and cancer care, and it is home to the Joint Replacement Surgeons of Indiana Research Foundation.