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Encyclopedia Dubuque


"Encyclopedia Dubuque is the online authority for all things Dubuque, written by the people who know the city best.”
Marshall Cohen—researcher and producer, CNN

Affiliated with the Local History Network of the State Historical Society of Iowa, and the Iowa Museum Association.


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DIAMOND JO CASINO. Opening on December 11, 2008, the $84 million Diamond Jo Casino was a 188,000 square foot entertainment complex at the Port of Dubuque. It included more than 923 slot machines, 17 table games, 5 poker tables, 157 plasma televisions, a thirty-lane bowling center with two party rooms, three restaurants, three bars, a broadcast center and a 5,000 square foot meeting and banquet center.

On May 17, 2012 it was announced that Boyd Gaming Corporation, a Las Vegas gambling company, was buying Peninsula Gaming LLC, which owned the Diamond Jo Casino in addition to other properties in Iowa, Louisiana, and Kansas, for $1.45 billion.

By December 9, 2013 the Mississippi Moon Bar had hosted 700 shows and sold 165,000 tickets, gamblers had hit 24,800 jackpots worth an estimated $53 million and bowlers had played over 1 million games--125 of them perfect. In five years the Diamond Jo had welcomed 5.7 million visitors. (1)

Photo courtesy: Bob Reding




1. "Our View," Telegraph Herald, December 9, 2013, p. 4A

Schmidt, Eileen Mozinski. "$1.45 Billion Buys Peninsula," Telegraph Herald, May 17, 2012. p. 1

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