Center for Gaming Research

Now with data through November 2018:

Just updated: Nevada Gaming Statistics: The Last Six Months
Recent Trends for Casino Revenues, June to November 2018

Nevada Gaming Statistics: November Historical Comparison 
Statewide, Las Vegas Strip, Downtown Las Vegas, Boulder Strip, and Washoe County figures for the month of November, 2009-2018

Nevada Table Games: Historical Hold Percentage Variations 
Annual hold percentage averages, with monthly maximum and minimums, 2004-18

Nevada Slot Machines: Historical Hold Percentage Variations
Annual and Monthly Hold Percentages, 2004-2018

Nevada Poker, 2004-2018 
An Analysis of Monthly Statewide Results

Just updated:

Pennsylvania Casinos & Racinos 
Slot, Table, and Total Revenues by Month, 2012-present

Now with updated data through November 2018:

Connecticut Tribal Casinos: Slot Data 
Monthly Handle, Win, Promotional and Other Totals

Now posted:

Atlantic City Casinos: November Summary 
Monthly and Year to Date Results