National Register of Historic Places listings in Center Township, Marion County, Indiana  This is a list of the National Register of Historic Places listings in Center Township, Marion County, Indiana. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Center Township, Marion County, Indiana, United States. Latitude and longitude coordinates are provided for many National Register properties and districts; these locations may be seen together in an online map. There are 248 properties and districts listed on the National Register in the county, including 9 National Historic Landmarks. Because Indianapolis is coextensive with Marion County, properties are listed by township rather than by city or town. Center Township is the location of 180 of these properties and districts, including 6 of the National Historic Landmarks; these properties and districts are listed here. Properties and districts in Marion County's other townships are listed separately. The Indianapolis Park and Boulevard System, a historic district, is primarily in Center Township but extends into three other townships, and is therefore included on both lists. Another ten properties, including eight in Center Township, were once listed but have been removed.