Originally established in 1686, Middletown Township adopted a Home Rule Charter in 1978.

[6][7] The John J. Tyler Arboretum and Ridley Creek State Park are listed on the National Register of Historic Places.

According to the United States Census Bureau, the township has a total area of 13.5 square miles (34.9 km2), all land.

Wawa Food Markets has its main dairy plant and "Corporate University" in Middletown,[11] while its headquarters are in Chester Heights, just to the south of the township.

[12][13][14] Elwyn Inc., a facility caring for the needs of the developmentally disabled and disadvantaged, is located in Middletown Township.

The mall closed in 2015 and was demolished for a mixed-use development consisting of residential, retail, and entertainment called the Promenade at Granite Run, which opened in 2018.

Middletown Township lies within the Rose Tree Media School District.

It was created by a merger between the Media Borough and Rose Tree Union School Districts in 1966.

For higher education, the township is home to Penn State Brandywine and Williamson College of the Trades.

Pennsylvania Route 452 begins at PA 352 in the center of Lima and runs south.

Emergency medical services are handled by Riddle Memorial Hospital's Paramedic Units.

Furthermore, Rocky Run Fire Company possesses an ambulance to serve the township.