[5] On September 17, 2004, Oakdale was devastated by a flood resulting from the rain brought by the remnants of category 5 Hurricane Ivan.

[6] The flooding caused a large-scale evacuation of the community, and brought Red Cross volunteers and National Guard members to the area in an effort to control the confusion.

According to the United States Census Bureau, the borough has a total area of 0.5 square miles (1.3 km2), all land.

Robinson Run, a tributary to Chartiers Creek, flows through the southeastern part of the borough.

The town generally supported incumbent Republican president Donald Trump over Democratic challenger Joe Biden in the 2020 presidential election, though supported Biden at a slightly higher margin than for 2016 Democratic candidate Hillary Clinton.

Western Allegheny Community Library serves Findlay Township, North Fayette, and Oakdale.

Rail transport today into and through Oakdale is nonexistent, as the last freight railway has been converted into the Panhandle Trail.

Public transport is also nonexistent within the town, aside from bus service to Pittsburgh Technical College.