Pueblo is a Home Rule Municipality that is the county seat and the most populous city of Pueblo County, Colorado, United States.

Pueblo is situated at the confluence of the Arkansas River and Fountain Creek 103 miles (166 km) south of the Colorado State Capitol in Denver. The area is considered to be semi-arid with approximately 14 inches (355.60 mm) of precipitation annually; however with its location in the "banana belt," Pueblo tends to get less snow than the other major cities in Colorado. Pueblo is the heart of the Pueblo Metropolitan Statistical Area and an important part of the Front Range Urban Corridor. Pueblo is one of the largest steel-producing cities in the United States; because of this Pueblo is referred to as the "Steel City." Until 1960 Pueblo was the second largest city in Colorado, and earned the title of "Second City." Many consider Pueblo to be the economic hub of southeastern Colorado. The Historic Arkansas River Project (HARP) is a beautiful river walk that graces the Union Avenue Historic Commercial District, and shows the history of the Pueblo Flood.

Pueblo is the hometown of Damon Runyon, who mentioned Pueblo in many of his newspaper columns (notably his "Our Old Man" pieces). Pueblo is also the home of Dutch Clark, the first man from Colorado in the NFL hall of fame. Pueblo's largest football stadium is named after him. The oldest high school rivalry west of the Mississippi takes place at this stadium

Pueblo is the home to Colorado's largest single event, the Colorado State Fair, held annually in the late summer, and the largest parade, the state fair parade, as well as an annual Chili Festival.

The National Street Rod Association's Rocky Mountain Street Rod Nationals have been held in Pueblo for 23 years, and this is the region's largest and premier street rod event.

Pueblo's newest event is the Wild West Fest sponsored by the Professional Bull Riders. It will be held in Pueblo during the spring and the main event will be a PBR rodeo held at the state fair events center and shown all over the world. Also, Pueblo is home to the PBR team finals held at the state fair events center during the Colorado state fair and shown all over the world. In 2008 the PBR moved their corporate headquarters to Pueblo.