The population was 1,281 at the 2020 census,[4] Concord Township occupies the southeastern corner of Erie County.

[5] The South Branch of French Creek, part of the Allegheny River watershed, rises in the township.

As of the census[7] of 2000, there were 1,361 people, 490 households, and 385 families residing in the township.

There were 490 households, out of which 36.7% had children under the age of 18 living with them, 64.3% were married couples living together, 9.2% had a female householder with no husband present, and 21.4% were non-families.

18.4% of all households were made up of individuals, and 8.2% had someone living alone who was 65 years of age or older.