[2] It is part of the Johnstown, Pennsylvania, Metropolitan Statistical Area.

Elias Stahl began a store in the area that became Middlecreek Township about 1840.

The borough of Seven Springs is located at the northern tip of Middlecreek Township, spilling over into Fayette County.

Camp T. Frank Soles of the YMCA of Greater Pittsburgh is also located in the township, at Lake Tris.

At the 2000 census there were 797 people, 345 households, and 230 families living in the township.

The racial makeup of the township was 99.25% White, 0.13% Native American, and 0.63% from two or more races.