Dubuque i/dÉËbjuËk/ is a city in and the county seat of Dubuque County, Iowa, United States, located along the Mississippi River. In 2010 its population was 57,637, a decrease of 0.1%, making it the ninth-largest city in the state and the county's population was 93,653.
The city lies at the junction of three states: Iowa, Illinois, and Wisconsin, a region locally known as the Tri-State Area. It serves as the main commercial, industrial, educational, and cultural center for the area. Geographically, it is part of the Driftless Area, a portion of North America that escaped all three phases of the Wisconsinian Glaciation.
One of the few large cities in Iowa with hills, it is a major tourist destination, attracted to the city's unique architecture and river location. Also, it is home to five institutions of higher education, making it a center for culture and learning.