[3] Everett's original name was Bloody Run, after a creek that was the site of a battle between settlers and Native Americans.

In 1787, Michael Barndollar purchased the land in this area, and laid out a town which was originally called Waynesburg.

According to the United States Census Bureau, the borough has a total area of 1.1 square miles (2.8 km2), all land.

Located in a valley of the Allegheny Mountains, Everett sits within a natural transportation corridor where the Raystown Branch of the Juniata River has carved a water gap, called The Narrows, through Tussey Mountain.

The Alleghenies are a sub-region of the much larger Appalachian Mountains, and cover an area of central Pennsylvania, western Maryland and northern West Virginia.

The countryside surrounding Everett is composed mainly of large forested areas, extensive agricultural fields, pasture, small villages, and woodlots.