The first settler was Michael Riddlemoser, who built a house here in 1820, and laid out the street plan in 1829.

[5] The New Baltimore Bridge, built in 1879, was added to the National Register of Historic Places in 1980.

[7] The borough is located on the eastern edge of Allegheny Township, along its border with Bedford County.

According to the United States Census Bureau, New Baltimore has a total area of 0.3 square miles (0.78 km2), all land.

Farmlands predominate in the village and the mountain range, with the majority of the area forested to the west.

[13][self-published source] In addition, Carmelite priests were buried on the right-of-way of the Turnpike, and their graves had to be moved.

In 2007, the PTC announced that it would eventually remove the steps that lead to St. John's Church.

While a written pact has not been found by either the church or the PTC, even if a written pact were to be found, the Turnpike was forbidden by federal regulations to replace the steps in any case due to safety concerns.