Portage Municipal Airport

The Columbia Correctional Institution (CCI) is an adult male maximum-security correctional facility operated by the Wisconsin Department of Corrections Division of Adult Institutions in Portage, Columbia County, Wisconsin. The operating capacity is 541. The average daily population for fiscal year 2018 was 830. Larry Fuchs, the warden, has been in that position since April 2020.

Portage is a city in and the county seat of Columbia County, Wisconsin, United States. The population was 10,581 at the 2020 census, making it the largest city in Columbia County. The city is part of the Madison Metropolitan Statistical Area. Portage was named for the Fox-Wisconsin Waterway, a portage between the Fox River and the Wisconsin River, which was recognized by Jacques Marquette and Louis Joliet during their discovery of a route to the Mississippi River in 1673. The city's slogan is "Where the North Begins."

Portage station is an Amtrak intercity train station in Portage, Wisconsin. It is served by the daily round trips of the Borealis and Empire Builder. The depot is a small square brick structure constructed during the Amtrak era that is located near a Canadian Pacific Kansas City yard office. The office occupies what was formerly the Portage passenger depot, served by the Chicago, Milwaukee, St. Paul and Pacific Railroad (Milwaukee Road) prior to the creation of Amtrak. There are no station staff in Portage. In October 2011, Lamers Bus Lines began offering a daily stop at the station, with service between Madison and Wausau. This service was transferred to Van Galder Coach USA in 2022.

The Society Hill Historic District was added to the National Register of Historic Places in 1992 for its architectural significance.

The Zona Gale House is a historic house located at 506 West Edgewater Street in Portage, Wisconsin. It is locally and generally significant for its association with literature and unique architecture.

The Portage Community School District in Portage, Wisconsin, is a combination of seven elementary schools. The two centralized schools are Woodridge Elementary (Pre-K through 1) and John Muir Elementary (2 through 6). There are four outline schools, Fort Winnebago Elementary (K through 6) is located in Columbia County on the outer edge of Portage. Rusch Elementary (K through 6) is located in downtown Portage and is the second largest elementary school. Endeavor Elementary (K through 6) is located in Marquette County in the town of Endeavor. Lewiston Elementary (K through 6) is located in the outer land of Portage and is the smallest elementary school in the district. The Portage Community School District also encompasses the Wayne E. Bartels Middle School (7 through 8). The middle school was recently renamed in 2010 after the death of the principal Wayne Bartels. The school board unanimously decided to rename the school in his honor. The Portage Community School District is home to the Portage High School (9 through 12). Portage High School mascot is a ‘flying P’ for the Portage Warriors. The high school offers many opportunities for students to become involved in events, clubs, sports, and other activities. Portage High School offers: FBLA, FFA, Key Club, Skills USA, Student Council, German Club, Spanish Club, HOSA, GSA, Writing Club, Video Club, Cheerleading, Dance Team, Scrabble Club, Captain's Academy, Destination Imagination, National Honor Society, Student Tutors, Weightlifting Club, Art Club, Basketball, Baseball, Football, Wrestling, Marching Band, Choir, Swimming, Curling, Tennis, Golf, Track, Softball, Ski Team, Color Guard.

The Portage Industrial Waterfront Historic District is in Portage, Wisconsin.

The Henry Merrell House is located in Portage, Wisconsin.

The Portage Canal was built to connect the Fox River and Wisconsin River at Portage, Wisconsin along the Fox-Wisconsin Waterway. For a time, it completed a route from the north Atlantic Ocean, through the St. Lawrence Seaway and down the Mississippi River to the Gulf of Mexico, and back to the Atlantic.

Fort Winnebago was a 19th-century fortification of the United States Army located on a hill overlooking the eastern end of the portage between the Fox and Wisconsin Rivers east of present-day Portage, Wisconsin. It was the middle one of three fortifications along the Fox-Wisconsin Waterway that also included Fort Howard in Green Bay, Wisconsin and Fort Crawford in Prairie du Chien, Wisconsin. Fort Winnebago was constructed in 1828 as part of an effort to maintain peace between white settlers and the region's Native American tribes following the Winnebago War of 1827. The fort's location was chosen not only because of its proximity to the site of Red Bird's surrender in the Winnebago War, but also because of the strategic importance of the portage on the Fox-Wisconsin Waterway, a heavily traveled connection between the Great Lakes and the Mississippi River. Fort Winnebago's location near the portage allowed it to regulate transportation between the lakes and the Mississippi. With the exception of the participation of troops from the fort in the 1832 Black Hawk War, Fort Winnebago was not involved in any combat operations during its occupation by the U.S. Army. Instead, the garrison, which from 1829 to 1831 included Lt. Jefferson Davis (later President of the Confederate States of America), was put to work in building a military road between Portage and Fond du Lac, Wisconsin, and assisting with the relocation of the Ho-Chunk Nation from Wisconsin to Minnesota during the 1840s. In 1845, the absence of any real threat to peace in the region prompted the abandonment of the fort. Nine years later the site was sold into private hands, and in 1856 a fire destroyed much of the fort.