On September 27, 2006, the racetrack was awarded a conditional slots license by the Pennsylvania Gaming Control Board, allowing construction to begin on the casino.
 Final approval of a permanent license came on December 20, 2006, and the following day the casino opened.
Bally's was chosen as the casino management system.
The name of the casino - "Parx" - a modified spelling of the racetrack name - was unveiled following a fireworks display on July 4, 2009.

The plan for the 430-acre (170 ha) site:
Phase 1: Renovation of the Grandstand, building of the Parx Casino. (
Complete; opened December 18, 2009)
Last Phase: Renovation of paddock. (
Complete; opened in May 2010)
Parx has over 3,200 slot machines.
Electronic table games, such as roulette and blackjack, and video poker are also available.
 On December 18, 2009, the casino building opened, with 3,300 slot machines.
On July 18, 2010, the casino began operating table games.
Parx has 188 tables, offering games including blackjack, craps, roulette, and baccarat.

Parx East, featuring card games, held its ribbon cutting ceremony on December 22, 2010.
Parx East became the new name of the grandstand with gambling returning to that building.
Gaming was now divided between two buildings on the Parx complex.

In January 2018, the Xcite Center and adjacent brand new poker room featuring over 48 tables opened in the main casino building as part of a $50 million expansion; poker was previously in the Parx East building.
The poker room opened on January 11, 2018 while the Xcite Center opened on January 13, 2018.

The Pennsylvania Gaming Control Board approved a sports betting license for Parx on October 3, 2018.
On November 2, 2018, Parx announced plans for a $10 million project that will construct a sportsbook called Parx Sportsbook, with a planned opening date of 2019.
In the meantime, the casino operated a temporary sportsbook in the space of the Club 360 bar.
Sports betting at Parx began on January 8, 2019 with a soft opening; the formal grand opening occurred on January 10, 2019.
The permanent 7,400-square-foot (690 m²) sportsbook opened on August 8, 2019, which consists of a 156-foot (48 m) HD media wall that can show 36 games at once, 200 seats, a bar, 3 VIP areas, 6 teller windows, and 18 automated kiosks.
Sports betting is available on multiple sports including NFL, NBA, MLB, NHL, college football, college basketball, golf, soccer, and MMA.
Parx launched an online sports betting app on June 24, 2019.

On July 15, 2019, Parx conducted a soft launch for online gambling, with the full launch occurring on July 18, 2019 after a testing period.
Online gambling offered by Parx consists of slot machines and table games, with online poker to launch at a later date.
On September 27, 2006, the racetrack was awarded a conditional slots license by the Pennsylvania Gaming Control Board, allowing construction to begin on the casino.  Final approval of a permanent license came on December 20, 2006, and the following day the casino opened. Bally's was chosen as the casino management system. The name of the casino - "Parx" - a modified spelling of the racetrack name - was unveiled following a fireworks display on July 4, 2009.
The plan for the 430-acre (170 ha) site:
Phase 1: Renovation of the Grandstand, building of the Parx Casino. (Complete; opened December 18, 2009)
Last Phase: Renovation of paddock. (Complete; opened in May 2010)
Parx has over 3,200 slot machines. Electronic table games, such as roulette and blackjack, and video poker are also available.  On December 18, 2009, the casino building opened, with 3,300 slot machines. On July 18, 2010, the casino began operating table games. Parx has 188 tables, offering games including blackjack, craps, roulette, and baccarat.
Parx East, featuring card games, held its ribbon cutting ceremony on December 22, 2010. Parx East became the new name of the grandstand with gambling returning to that building. Gaming was now divided between two buildings on the Parx complex.
In January 2018, the Xcite Center and adjacent brand new poker room featuring over 48 tables opened in the main casino building as part of a $50 million expansion; poker was previously in the Parx East building. The poker room opened on January 11, 2018 while the Xcite Center opened on January 13, 2018.
The Pennsylvania Gaming Control Board approved a sports betting license for Parx on October 3, 2018. On November 2, 2018, Parx announced plans for a $10 million project that will construct a sportsbook called Parx Sportsbook, with a planned opening date of 2019. In the meantime, the casino operated a temporary sportsbook in the space of the Club 360 bar. Sports betting at Parx began on January 8, 2019 with a soft opening; the formal grand opening occurred on January 10, 2019. The permanent 7,400-square-foot (690 m²) sportsbook opened on August 8, 2019, which consists of a 156-foot (48 m) HD media wall that can show 36 games at once, 200 seats, a bar, 3 VIP areas, 6 teller windows, and 18 automated kiosks. Sports betting is available on multiple sports including NFL, NBA, MLB, NHL, college football, college basketball, golf, soccer, and MMA. Parx launched an online sports betting app on June 24, 2019.
On July 15, 2019, Parx conducted a soft launch for online gambling, with the full launch occurring on July 18, 2019 after a testing period. Online gambling offered by Parx consists of slot machines and table games, with online poker to launch at a later date.
Parx Casino and Racing