Delphi () is a city in and the county seat of Carroll County, in the U.S. state of Indiana. Located twenty minutes northeast of Lafayette, it is part of the Lafayette, Indiana Metropolitan Statistical Area. The population was 2,893 at the 2010 census. History Delphi was platted in 1828. It took its name from the ancient city of Delphi, in Greece. Several months after Delphi was founded, it was designated as the county seat. The Barnett-Seawright-Wilson House, Carroll County Courthouse, Delphi City Hall, Delphi Courthouse Square Historic District, Delphi Methodist Episcopal Church, Foreman-Case House, and Niewerth Building are listed on the National Register of Historic Places. Local heritage centers on the Wabash and Erie Canal, a canal and towpath that once bound together northern, central, and southern Indiana. The segment of the canal that passes through Delphi has been rewatered and serves as the focus of canal activities. A visitor center and museum, the Wabash & Erie Canal Interpretive Center, welcomes guests. Delphi was the site of a widely publicized double murder in 2017. Geography Delphi is located at . According to the 2010 census, Delphi has a total area of , all land. Demographics 2010 census At the 2010 census there were 2,893 people, 1,135 households, and 694 families living in the city. The population density was . There were 1,270 housing units at an average density of . The racial makeup of the city was 91.7% White, 0.4% African American, 0.2% Native American, 0.2% Asian, 5.5% from other races, and 1.9% from two or more races. Hispanic or Latino of any race were 11.3%. Of the 1,135 households 32.8% had children under the age of 18 living with them, 44.1% were married couples living together, 11.2% had a female householder with no husband present, 5.8% had a male householder with no wife present, and 38.9% were non-families. 33.1% of households were one person and 16.2% were one person aged 65 or older. The average household size was 2.46 and the average family size was 3.12. The median age was 37.5 years. 25.9% of residents were under the age of 18; 8.5% were between the ages of 18 and 24; 25.5% were from 25 to 44; 22.3% were from 45 to 64; and 18% were 65 or older. The gender makeup of the city was 47.9% male and 52.1% female. 2000 census At the 2000 census there were 3,015