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

Pennsylvania Route 653 passes through part of Summit Township, generally running southeast from the borough of Rockwood and Milford Township, through Black Township, and into Summit Township, reaching its eastern terminus in the borough of Garrett as it intersects with Mason Dixon Highway / SR 2047.

At the 2000 census there were 2,368 people, 864 households, and 691 families living in the township.

There were 930 housing units at an average density of 20.6/sq mi (8.0/km2).

[6] Of the 864 households 33.2% had children under the age of 18 living with them, 70.3% were married couples living together, 5.8% had a female householder with no husband present, and 20.0% were non-families.