According to our records, this business is located at 1034 8th St. in Onawa (in Monona County), Iowa 51040, the location GPS coordinates are: 42.0262133 (latitude), -96.0945801 (longitude). O'Neill's Tavern is categorized under Cocktail Lounges (SIC code 5813). Known organization owner is Gary O'Neill. Current estimates show that the unit has a sales volume of $150,000 and staff of approximately 3 people. You can contact the company by phone at (712) 423-1043.