[5] Piedmont's success was spurred by the now-defunct St. Louis, El Reno and Western Railway that extended a line from Guthrie to El Reno, which allowed it to become an agricultural market center.

[5] Piedmont remained a small but stable rural community for the first half of the 20th century.

Starting in the 1970s, the town became an increasingly popular bedroom community for those working in nearby Oklahoma City.

Development of the "Northwest Expressway" (Oklahoma State Highway 3) resulted in population growth of 124%.

Rated EF5, it destroyed about 180 homes in the city,[6] caused over $20 million in property damage,[7] and killed two children.

[8] Piedmont is located in the northeastern corner of Canadian County 10 miles (16 km) north of Yukon.

"[citation needed] Piedmont is a home rule city served by a council–manager government.

[13][14] The report revealed that Orr had violated Piedmont ordinances with the purchase of two pickup trucks by not obtaining prior Council approval and soliciting competitive bids as required.

The report also revealed that Orr had contacted City Council members via phone calls prior to the purchase in February 2020 which appeared "to be an action of the Council conducted outside of an official meeting, a circumvention of the Open Meetings Act".