Across the Monongahela River to the northwest, a short segment of Elizabeth Township runs adjacent with Jefferson Hills.

Across the Youghiogheny River to the west, seven neighborhoods run adjacent with Elizabeth Township, including (from north to south) Versailles (with direct connection via Boston Bridge), McKeesport (Small border across river), White Oak (although a very small section is situated across the river), South Versailles Township, North Huntingdon Township (again with a small section bordering the other side of the river), Sewickley Township, and Sutersville, the latter three neighborhoods in Westmoreland County.

As of the 2000 census,[8] there were 13,839 people, 5,467 households, and 4,105 families residing in the township.

The racial makeup of the township was 97.36% White, 1.69% African American, 0.04% Native American, 0.26% Asian, 0.01% Pacific Islander, 0.17% from other races, and 0.46% from two or more races.

22.2% of all households were made up of individuals, and 11.5% had someone living alone who was 65 years of age or older.